3

Rev A 8/5/06

SP2950/5/52/53 .5A Low Dropout voltage Regulator

© Copyright 2006 Sipex Corporation

NOTES:

Note 1: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value.

Note 3: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground

current.

Note 4: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line

regulation effects.

Note 5: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured 6V

a programmable output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Thresholds

Note 7: Maximum positive supply voltage of 20V must be of limited duration (<100m_) < 1%. The maximum continuous supply voltage is 16V.

Reference

Thermal

shutdown

EN

IN

OUT

ADJ

GND

O.v

I

LIMIT

28v

R1*

R2*

1.180v

1.240v

+

+

-

-

FLAG

BLOCK DIAGRAM

ELECTRICAL CHARACTERISTICS CONT'D

PARAMETER

CONDITIONS

Typ

SPX29150/51

Min

Max

Units

Upper Threshold

voltage

Device set for 5V (Note 5)

60

40

25

mV

Lower Threshold

voltage

Device set for 5V (Note 5)

75

95

140

mV

Hysteresis

Device set for 5V (Note 5)

5

mV

ENABLE input

SPX29151/52

Input Logic Voltage

Low (OFF)

High (ON)

2.4V

0.8

v

Enable Input Pin Input

Current

00

600

750

µA

1

2

µA

Regulator output Cur-

rent in Shutdown

(Note 6)

0

500

µA

Thermal Resistance

TO-220 Junction to Case, at Tab

TO-220 Junction to Ambient

TO-263 Junction to Case, at Tab

TO-263 Junction to Ambient

3

30

3

32

°C/W