NEGATIVE ADJUSTABLE

VOLTAGE REGULATOR

Semelab Limited

Semelab Limited

Semelab Limited

Semelab Limited

Coventry Road, Lutterworth, Leicestershire, LE17 4JB

Telephone +44 (0) 1455 556565

Fax +44 (0) 1455 552612

Document Number 8380

Issue 1

Page 4 of 7

LM337, IP337, LM337HV, IP337HV

Symbols

Parameters

Test Conditions

Min.

Typ

Max.

Units

IOUT = 10mA

-1.213

-1.250

-1.287

VREF

Reference Voltage

10mA ≤ IOUT ≤ IMAX, P ≤ PMAX,

3V ≤ (VIN-VOUT) ≤ VMAX

-1.300

V

0.010

0.040

IN

OUT

V

V

∆

∆

Line Regulation (2)

3V ≤ (VIN-VOUT) ≤ VMAX,

IOUT = 10mA

•

0.020

0.070

%/V

VOUT ≤ 5V

15

50

mV

VOUT ≥ 5V

0.3

1.0

%

20

70

mV

OUT

I

OUT

V

∆

∆

Load Regulation (2)(3)

10mA ≤ IOUT ≤ IMAX

0.3

1.5

%

Thermal Regulation

VIN = -14.58V, IOUT = 1.5A,

PD = 20W, TA = 25°C, 10ms Pulse

0.003

0.04

%/W

VOUT = -10V

CADJ = 0

60

Ripple Rejection

f = 120Hz

66

77

dB

IADJ

Adjust Pin Current

•

65

100

10mA ≤ IOUT ≤ IMAX

•

0.5

5

3V ≤ (VIN-VOUT) ≤ 40V

•

2

5

∆IADJ

Adjust Pin Current Change

3V ≤ (VIN-VOUT) ≤ 50V (HV Series)

(HV Series)

(HV Series)

(HV Series)

•

3

6

µA

(VIN - VOUT) ≤ 40V

•

2.5

10

IMIN

Minimum Load Current

(VIN - VOUT) ≤ 10V

•

1.0

6

mA

(VIN - VOUT) ≤ 15V

•

1.5

2.2

3.5

(VIN - VOUT) = 40V

•

0.15

0.4

ICL

Current Limit

(VIN - VOUT) = 50V (HV Series)

(HV Series)

(HV Series)

(HV Series)

•

0.1

0.4

0.8

A

TEMP

OUT

V

∆

∆

Temperature Stability

•

0.6

TIME

OUT

V

∆

∆

Long Term Stability

TA = 125°C, 1000Hrs

0.3

1.0

en

RMS Output Noise

(% of VOUT)

TA = 25°C, 10Hz ≤ f ≤ 10KHz

0.003

%

Notes

Notes

Notes

Notes

The ● denotes the specifications which apply over the full operating temperature range.

(1)

Test conditions unless otherwise stated: VIN - VOUT = 5V, IOUT = 0.5A, PMAX = 20W, IMAX = 1.5A

(2)

Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to heating

effects are covered under thermal regulation specifications. Load regulation is measured at

(3)

VMAX = 40V for LM137, IP137, LM137A, IP137A, LM337, IP337, LM337A, IP337A

VMAX = 50V for LM137HV, IP137HV, LM137AHV, IP137AHV, LM337HV, IP337HV, LM337AHV, IP337AHV