LP2951

© 1998 SEMTECH CORP.

150mA ADJUSTABLE

VOLTAGE REGULATOR

March 17, 1998

652 MITCHELL ROAD NEWBURY PARK CA 91320

2

NOTE:

(1) Temperature coefficient is defined as the worst case voltage change divided by total temperature range.

ELECTRICAL CHARACTERISTICS

Unless specified, limits are over operating temperature range (T

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Output Voltage

LP2951CM

V

OUT

T

4.950

5.000

5.050

V

LP2951CM-3.3

3.267

3.300

3.333

Temp Coefficient

(1)

T

C

0°C

≤ T

=70°C

20

120

ppm/°C

Line Regulation

REG

(LINE)

(V

0.1

0.5

%

Load Regulation

REG

(LOAD)

100µA

≤ I

L

0.1

0.4

%

Dropout Voltage

V

D

I

L

80

150

mV

I

L

380

600

Ground Current

I

GND

I

L

120

160

µA

I

L

814

mA

Dropout Ground Current

I

GND(D)

V

110

250

µA

Current Limit

I

CL

V

200

250

mA

Reference Voltage

V

REF

V

=25°C,

100µA

≤ I

L

1.210

1.235

1.260

V

Feedback Bias Current

I

FB

20

60

nA

Error Comparator

Output High Leakage

Current

V

2

µA

Output Low Voltage

V

150

400

mV

Threshold Voltage

Upper

25

60

mV

Lower

75

140

Hysteresis

15

mV

Shutdown Input

Input Logic Voltage

V

SD

Low

0.6

V

High

2.0

V

Input Current

I

SD

V

100

µA

V

750

Regulator Shutdown

Output Current

I

O(SD)

V

V

20

µA