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LM317P View Datasheet(PDF) - STMicroelectronics

Part NameLM317P ST-Microelectronics
STMicroelectronics ST-Microelectronics
Description1.2 V to 37 V adjustable voltage regulators


LM317P Datasheet PDF : 25 Pages
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Electrical characteristics
4
Electrical characteristics
LM117, LM217, LM317
VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and PMAX = 20 W, TJ = - 55 to 150 °C for LM117,
TJ = - 25 to 150 °C for LM217, unless otherwise specified.
Table 4.
Symbol
Electrical characteristics for LM117/LM217
Parameter
Test conditions
Min. Typ. Max. Unit
ΔVO Line regulation
VI - VO = 3 to 40 V
TJ = 25°C
0.01 0.02
%/V
0.02 0.05
ΔVO Load regulation
VO 5 V
IO = 10 mA to IMAX
VO 5 V,
IO = 10 mA to IMAX
TJ = 25°C
TJ = 25°C
5
15
mV
20
50
0.1 0.3
%
0.3
1
IADJ Adjustment pin current
50 100 µA
ΔIADJ Adjustment pin current
VI - VO = 2.5 to 40V IO = 10 mA to IMAX
0.2
5
µA
VREF
Reference voltage
(between pin 3 and pin 1)
VI - VO = 2.5 to 40V IO= 10 mA to IMAX
PD PMAX
1.2 1.25 1.3
V
ΔVO/VO
Output voltage
temperature stability
1
%
IO(min) Minimum load current
VI - VO = 40 V
3.5
5
mA
VI - VO 15 V, PD < PMAX
1.5 2.2
IO(max) Maximum load current
VI - VO = 40 V, PD < PMAX, TJ = 25°C
A
0.4
eN
Output noise voltage
(percentage of VO)
B = 10Hz to 100kHz, TJ = 25°C
0.003
%
SVR Supply voltage rejection (1) TJ = 25°C, f = 120Hz
CADJ=0
65
dB
CADJ=10µF 66
80
1. CADJ is connected between pin 1 and ground.
6/25
Doc ID 2154 Rev 15
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Description
The LM117, LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP, TO-3 and D²PAK packages intended for use as positive adjustable voltage regulators.
They are designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range.

Features
■ Output voltage range: 1.2 to 37 V
■ Output current in excess of 1.5 A
■ 0.1% Line and load regulation
■ Floating operation for high voltages
■ Complete series of protections: current limiting, thermal shutdown and SOA control
 

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