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
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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
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Electrical characteristics LD1117 series
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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
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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
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5 Typical application