LM337SP(2014) 查看數據表（PDF） - STMicroelectronics

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LM337SP
(Rev.:2014)

Three-terminal adjustable negative voltage regulators

STMicroelectronics 

Electrical characteristics

4

Electrical characteristics

LM337

TJ = 0 to 150 °C VI - VO = 5 V, IO = 0.5 A unless otherwise specified.

Symbol

Parameter

Table 4. Electrical characteristics

Test conditions

Min. Typ. Max. Unit

VREF Reference voltage

Ta = 25°C

|VI - VO| = 3 to 40 V, TJ = Tmin to Tmax

|IO| = 10mA to |IO(max)|, P ≤ Pmax

-1.213 -1.25 -1.287

V

-1.2 -1.25 -1.3

KVI Line regulation (1)

Ta = 25°C

|VI - VO| = 3 to 40 V

IO = 0.1 A

IO = 20 mA

0.01 0.04

%/V

0.01 0.04

KVO Load regulation (1)

Ta = 25°C

|VO| ≤ 5 V

|IO| = 10mA to |IO(max)| |VO| ≥ 5 V

15

50

mV

0.3

1

%

Thermal regulation

Ta = 25°C, pulse 10 ms

0.003 0.04 %/W

IADJ Adjustment pin current

65 100 µA

ΔIADJ

KVI

Adjustment pin current

change

Line regulation (1)

Ta = 25°C, |IO| = 10 mA to |IO(max)|

|VI - VO| = 3 to 40 V

|VI - VO| = 3 to 40 V

2

5

µA

0.02 0.07 %/V

KVO Load regulation (1)

|VO| ≤ 5 V

|IO| = 10mA to |IO(max)| |VO| ≥ 5 V

20

70

mV

0.3 1.5

%

|IO(min)| Minimum load current

|VI - VO| ≤ 40 V

|VI - VO| ≤ 10 V

2.5

10

mA

1.5

6

|VI - VO| ≤ 15 V

IOS Short circuit output current

|VI - VO| = 40 V, TJ =2 5°C

1.5 2.2

A

0.15 0.4

VNO

RMS output noise

(% of VO)

Ta = 25°C, f = 10 Hz to 10 kHz

0.003

%

RVF Ripple rejection ratio

VO = -10 V, f = 120 Hz

CADJ = 10 µF

60

dB

66

77

KVT Temperature stability

0.6

%

KVH Long term stability

Ta = 125°C, 1000 H

0.3

1

%

1. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output

voltage due to heating effects are covered under the specification for thermal regulation.

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DocID2167 Rev 5

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