LD1117D50CTR中文资料

December 2006Rev. 201/38

LD1117 series

Low drop fixed and adjustable positive voltage regulators

Feature summary

■Low dropout voltage (1V TYP.)

■ 2.85V Device performances are suitable for SCSI-2 active termination ■Output current up to 800 mA

■Fixed output voltage of: 1.2V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 5.0V

■Adjustable version availability (V rel =1.25V)■Internal current and thermal limit

■Available in ± 1% (at 25°C) and 2% in full temperature range

Supply voltage rejection: 75dB (typ.)

Description

The LD1117 is a LOW DROP Voltage Regulator able to provide up to 800mA of Output Current, available even in adjustable version (Vref=1.25V). Concerning fixed versions, are offered the

following Output Voltages: 1.2V ,1.8V ,2.5V ,2.85V, 3.0V 3.3V and 5.0V . The 2.85V type is ideal for SCSI-2 lines active termination. The device is supplied in: SOT -223, DP AK, SO-8 and TO-220.

The SOT -223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the Quiescent Current flows mostly into the load. Only a very common 10μF minimum capacitor is needed for stability.On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25°C. The ADJUSTABLE LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of Drop and Tolerance.

https://www.360docs.net/doc/238209000.html,

Block diagram

LD1117 series

2/38Contents

1Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6LD1117 Adjustable: Application note . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 8Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 9Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

LD1117 series Pin configuration 1 Pin configuration

Note:The TAB is connected to the V OUT.

3/38

Maximum ratings LD1117 series

4/38

2 Maximum ratings

Table 1.

Absolute maximum ratings

Symbol Parameter

Value Unit V IN DC Input Voltage 15V P TOT Power Dissipation

12W T STG Storage T emperature Range

-40 to +150°C T OP

Operating Junction Temperature Range

for C Version -40 to +150°C for standard Version

0 to +150

°C

Table 2.

Thermal Data

Symbol Parameter

SOT-223SO-8DPAK TO-220Unit R thJC Thermal Resistance Junction-case 15

20

8

3°C/W R thJA

Thermal Resistance Junction-ambient

50

°C/W

LD1117 series Schematic application 3 Schematic application

5/38

Electrical characteristics LD1117 series

6/38

4 Electrical characteristics

Table 3.

Electrical characteristics of LD1117#12

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, R = 120 ? between GND and OUT pins, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 3.2 V , I O = 10 mA, T J = 25°C 1.188 1.20 1.212V V O Reference voltage I O = 10 to 800 mA V in - V O = 1.4 to 10 V

1.140

1.20 1.260V ?V O Line regulation V in - V O = 1.5 to 13.75 V , I O = 10 mA 0.0350.2%?V O Load regulation V in - V O = 3 V , I O = 10 to 800 mA

0.10.4

%?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C

0.3

%V in Operating input voltage 15V I adj Adjustment pin current V in ≤ 15 V

60120μA ?I adj Adjustment pin current change V in - V O = 1.4 to 10 V I O = 10 to 800 mA 15μA I O(min)Minimum load current V in = 15 V

25mA I O Output current V in - V O = 5 V , T J = 25°C 800

9501300mA eN Output noise (%V O ) B =10Hz to 10KHz, T J = 25°C 0.003%SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in - V O = 3 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA

1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

LD1117 series Electrical characteristics

7/38Table 4.

Electrical characteristics of LD1117#18

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 3.8 V , I O = 10 mA, T J = 25°C 1.78 1.8

1.82V V O Output voltage I O = 0 to 800 mA, V in = 3.3 to 8 V 1.76

1.84V ?V O Line regulation V in = 3.3 to 8 V , I O = 0 mA 16mV ?V O Load regulation V in = 3.3 V , I O = 0 to 800 mA

110

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 10V I d Quiescent current V in ≤ 8 V

510mA I O Output current V in = 6.8 V , T J = 25°C 800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 5.5 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA

1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W Table 5.

Electrical characteristics of LD1117#25

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 4.5 V , I O = 10 mA, T J = 25°C 2.475 2.5

2.525V V O Output voltage I O = 0 to 800 mA, V in =

3.9 to 10 V 2.45

2.55V ?V O Line regulation V in =

3.9 to 10 V , I O = 0 mA 16mV ?V O Load regulation V in = 3.9 V , I O = 0 to 800 mA

110

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 10 V

510mA I O Output current V in = 7.5 VT J = 25°C

800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 5.5 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA 1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

Electrical characteristics LD1117 series

8/38

Table 6.

Electrical characteristics of LD1117#28

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 4.85 V , I O = 10 mA, T J = 25°C 2.82 2.85

2.88V V O Output voltage I O = 0 to 800 mA, V in = 4.25 to 10 V 2.79

2.91V ?V O Line regulation V in = 4.25 to 10 V , I O = 0 mA 16mV ?V O Load regulation V in = 4.25 V , I O = 0 to 800 mA

110

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 10 V

510mA I O Output current V in = 7.85 VT J = 25°C 800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 5.85 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA 1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

LD1117 series Electrical characteristics

9/38

Table 7.

Electrical characteristics of LD1117#30

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 5 V , I O = 10 mA, T J = 25°C 2.973

3.03V V O Output voltage I O = 0 to 800 mA, V in =

4.5 to 10 V 2.94

3.06V ?V O Line regulation V in =

4.5 to 12 V , I O = 0 mA 16mV ?V O Load regulation V in = 4.5 V , I O = 0 to 800 mA

110

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 12 V

510mA I O Output current V in = 8 V , T J = 25°C

800

9501300

mA eN Output noise voltage B =10Hz to 10KHz,T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 6 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA 1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

Electrical characteristics LD1117 series

10/38

Table 8.

Electrical characteristics of LD1117#33

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 5.3 V , I O = 10 mA, T J = 25°C 3.267 3.3

3.333V V O Output voltage I O = 0 to 800 mA, V in =

4.75 to 10 V 3.235

3.365V ?V O Line regulation V in =

4.75 to 15 V , I O = 0 mA 16mV ?V O Load regulation V in = 4.75 V , I O = 0 to 800 mA

110

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 15 V

510mA I O Output current V in = 8.3 V , T J = 25°C 800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 6.3 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA 1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

LD1117 series Electrical characteristics

11/38

Table 9.

Electrical characteristics of LD1117#50

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 7 V , I O = 10 mA, T J = 25°C 4.955

5.05V V O Output voltage I O = 0 to 800 mA, V in =

6.5 to 15 V 4.9

5.1V ?V O Line regulation V in =

6.5 to 15 V , I O = 0 mA 110mV ?V O Load regulation V in = 6.5 V , I O = 0 to 800 mA

115

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 15 V

510mA I O Output current V in = 10 V , T J = 25°C 800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 8 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA 1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

Electrical characteristics LD1117 series

12/38

Table 10.

Electrical characteristics of LD1117 (Adjustable)

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V ref Reference voltage V in - V O = 2 V , I O = 10 mA, T J = 25°C

1.238

1.25

1.262V V ref Reference voltage I O = 10 to 800 mA, V in - V O = 1.4 to 10 V 1.225 1.275

V ?V O Line regulation V in - V O = 1.5 to 13.75 V , I O = 10 mA 0.0350.2%?V O Load regulation V in - V O = 3 V , I O = 10 to 800 mA

0.10.4

%?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C

0.3

%V in Operating input voltage 15V I adj Adjustment pin current

V in ≤ 15 V

60120μA ?I adj Adjustment pin current change V in - V O = 1.4 to 10 V , I O = 10 to 800 mA 15μA I O(min)Minimum load current V in = 15 V

2

5mA I O Output current V in - V O = 5 V , T J = 25°C 800

9501300mA eN Output noise (%V O ) B =10Hz to 10KHz, T J = 25°C 0.003%SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in - V O = 3 V , V ripple = 1 V PP 60

75dB

V d

Dropout voltage

I O = 100 mA

1 1.1V

I O = 500 mA 1.05 1.15I O = 800 mA

1.10 1.2Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

LD1117 series Electrical characteristics

13/38

Table 11.

Electrical characteristics of LD1117#12C

(refer to the test circuits, T J = 0 to 125°C, C O = 10 μF, R = 120 ? between GND and OUT pins, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V ref Reference voltage V in - V O = 2V , I O = 10 mA, T J = 25°C 1.176 1.20 1.224V V ref Reference voltage I O = 10 to 800 mA, V in - V O = 1.4 to 10 V

1.120

1.20

1.280V ?V O Line regulation V in - V O = 1.5 to 13.75 V , I O = 10 mA 1%?V O Load regulation V in - V O = 3 V , I O = 10 to 800 mA

1

%?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C

0.3

%V in Operating input voltage 15V I adj Adjustment pin current V in ≤ 15 V

60120μA ?I adj Adjustment pin current change V in - V O = 1.4 to 10 V I O = 10 to 800 mA 15μA I O(min)Minimum load current V in = 15 V

25mA I O Output current V in - V O = 5 V , T J = 25°C 800

9501300

mA eN Output noise (%V O ) B =10Hz to 10KHz, T J = 25°C 0.003%SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in - V O = 3 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA, T J = 0 to 125°C

1 1.1V

I O = 500 mA, T J = 0 to 125°C 1.05 1.2I O = 800 mA, T J = 0 to 125°C

1.10 1.3Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

Electrical characteristics LD1117 series

14/38

Table 12.

Electrical characteristics of LD1117#18C

(refer to the test circuits, T J = -40 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 3.8 V , I O = 10 mA, T J = 25°C 1.76 1.8

1.84V V O Output voltage I O = 0 to 800 mA, V in = 3.9 to 10 V 1.73

1.87V ?V O Line regulation V in = 3.3 to 8 V , I O = 0 mA 130mV ?V O Load regulation V in = 3.3 V , I O = 0 to 800 mA

130

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 10V I d Quiescent current V in ≤ 8 V

510mA I O Output current V in = 6.8 VT J = 25°C

800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 5.5 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA, T J = 0 to 125°C 1 1.1V

I O = 500 mA, T J = 0 to 125°C 1.05 1.15I O = 800 mA, T J = 0 to 125°C 1.10

1.2V d

Dropout voltage

I O = 100 mA

1.1V I O = 500 mA 1.2I O = 800 mA

1.3

Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

LD1117 series Electrical characteristics

15/38

Table 13.

Electrical characteristics of LD1117#25C

(refer to the test circuits, T J = -40 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 4.5 V , I O = 10 mA, T J = 25°C 2.45 2.5

2.55V V O Output voltage I O = 0 to 800 mA, V in =

3.9 to 10 V 2.4

2.6V ?V O Line regulation V in =

3.9 to 10 V , I O = 0 mA 130mV ?V O Load regulation V in = 3.9 V , I O = 0 to 800 mA

130

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 10 V

510mA I O Output current V in = 7.5 VT J = 25°C

800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 5.5 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA, T J = 0 to 125°C 1 1.1V

I O = 500 mA, T J = 0 to 125°C 1.05 1.15I O = 800 mA, T J = 0 to 125°C 1.10

1.2V d

Dropout voltage

I O = 100 mA

1.1V I O = 500 mA 1.2I O = 800 mA

1.3

Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

Electrical characteristics LD1117 series

16/38

Table 14.

Electrical characteristics of LD1117#30C

(refer to the test circuits, T J = -40 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 5 V , I O = 10 mA, T J = 25°C 2.943

3.06V V O Output voltage I O = 0 to 800 mA, V in =

4.5 to 10 V 2.88

3.12V ?V O Line regulation V in =

4.5 to 12 V , I O = 0 mA 130mV ?V O Load regulation V in = 4.5 V , I O = 0 to 800 mA

130

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 12 V

510mA I O Output current V in = 8 V , T J = 25°C

800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 6 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA, T J = 0 to 125°C 1 1.1V

I O = 500 mA, T J = 0 to 125°C 1.05 1.15I O = 800 mA, T J = 0 to 125°C 1.10

1.2V d

Dropout voltage

I O = 100 mA

1.1V I O = 500 mA 1.2I O = 800 mA

1.3

Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

LD1117 series Electrical characteristics

17/38

Table 15.

Electrical characteristics of LD1117#33C

(refer to the test circuits, T J = -40 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 5.3 V , I O = 10 mA, T J = 25°C 3.24 3.3

3.36V V O Output voltage I O = 0 to 800 mA, V in =

4.75 to 10 V 3.16

3.44V ?V O Line regulation V in =

4.75 to 15 V , I O = 0 mA 130mV ?V O Load regulation V in = 4.75 V , I O = 0 to 800 mA

130

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 15 V

510mA I O Output current V in = 8.3 V , T J = 25°C 800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 6.3 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA, T J = 0 to 125°C 1 1.1V

I O = 500 mA, T J = 0 to 125°C 1.05 1.15I O = 800 mA, T J = 0 to 125°C 1.10

1.2V d

Dropout voltage

I O = 100 mA

1.1V I O = 500 mA 1.2I O = 800 mA

1.3

Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

Electrical characteristics LD1117 series

18/38

Table 16.

Electrical characteristics of LD1117#50C

(refer to the test circuits, T J = -40 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V O Output voltage V in = 7 V , I O = 10 mA, T J = 25°C 4.95

5.1V V O Output voltage I O = 0 to 800 mA, V in =

6.5 to 15 V 4.8

5.2V ?V O Line regulation V in =

6.5 to 15 V , I O = 0 mA 150mV ?V O Load regulation V in = 6.5 V , I O = 0 to 800 mA

150

mV ?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C 0.3

%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 15 V

510mA I O Output current V in = 10 V , T J = 25°C 800

9501300

mA eN Output noise voltage B =10Hz to 10KHz, T J = 25°C 100μV SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in = 8 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA, T J = 0 to 125°C 1 1.1V

I O = 500 mA, T J = 0 to 125°C 1.05 1.15I O = 800 mA, T J = 0 to 125°C 1.10

1.2V d

Dropout voltage

I O = 100 mA

1.1V I O = 500 mA 1.2I O = 800 mA

1.3

Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

LD1117 series Electrical characteristics

19/38

Table 17.

Electrical characteristics of LD1117C (Adjustable)

(refer to the test circuits, T J = -40 to 125°C, C O = 10 μF, unless otherwise specified).

Symbol Parameter

Test

Min.Typ.Max.Unit V ref Reference voltage V in - V O = 2 V , I O = 10 mA, T J = 25°C 1.225 1.25

1.275V V ref Reference voltage I O = 10 to 800 mA, V in - V O = 1.4 to 10 V 1.2

1.3V ?V O Line regulation V in - V O = 1.5 to 13.75 V , I O = 10 mA 1%?V O Load regulation V in - V O = 3 V , I O = 10 to 800 mA

1

%?V O Temperature stability 0.5%?V O Long term stability 1000 hrs, T J = 125°C

0.3

%V in Operating input voltage 15V I adj Adjustment pin current

V in ≤ 15 V 60120μA ?I adj Adjustment pin current change V in - V O = 1.4 to 10 V , I O = 10 to 800 mA 110μA I O(min)Minimum load current V in = 15 V

25mA I O Output current V in - V O = 5 V , T J = 25°C 800

9501300

mA eN Output noise (%V O ) B =10Hz to 10KHz, T J = 25°C 0.003%SVR

Supply voltage rejection

I O = 40 mA, f = 120Hz, T J = 25°C V in - V O = 3 V , V ripple = 1 V PP 6075dB

V d

Dropout voltage

I O = 100 mA, T J = 0 to 125°C 1 1.1V

I O = 500 mA, T J = 0 to 125°C 1.05 1.15I O = 800 mA, T J = 0 to 125°C 1.10

1.2V d

Dropout voltage

I O = 100 mA

1.1V I O = 500 mA 1.2I O = 800 mA

1.3

Thermal regulation

T a = 25°C, 30ms Pulse

0.01

0.1

%/W

Typical application LD1117 series

20/38

5 Typical application

相关主题
相关文档
最新文档