16

LT1573

1573fa LT/TP 1299 2K REV A • PRINTED IN USA

©LINEAR TECHNOLOGY CORPORATION 1997

Linear Technology Corporation

High Efficiency 2.5V to 1.8V Converter at 5A Output Current

COMP

FB

LATCH

LT1573

+

0.5

µF

3V

TO 7V

2.5V

1.8V

6.2

Ω

1/2W

GND

1573 TA06

200

Ω

1/8W

R1

420

Ω

1/8W

R2

1k

1/8W

LOAD

MOTOROLA

D45H11

SHDN (ACTIVE HIGH) PIN SHOULD BE TIED TO GROUND IF IT IS NOT USED

DRIVE

SHDN

GND

+

+

+

Dimensions in inches (millimeters) unless otherwise noted.

S8 Package

8-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

PART NUMBER

DESCRIPTION

COMMENTS

LT1529

3A Micropower Low Dropout Regulator

50

µA Quiescent Current, 0.5V Dropout, Shutdown

LT1575/LT1577

Low Dropout N-Channel MOSFET Regulator Driver

Ultrafast Transient, Adjustable/Fixed Output, Current Limiting

LT1580/LT1581

7A, 10A Very Low Dropout Linear Regulators

For High Current 3.3V to 2.xV Applications

LT1584/LT1585/LT1587

7A/4.6A/3A Low Dropout, Fast Response Regulators

For High Performance Microprocessors

LT1761/LT1762/LT1763

Low Noise LDO Micropower Regulators

20

LT1764

3A Fast Transient Response Low Dropout Regulator

340mV Dropout Voltage

RELATED PARTS

0.016 – 0.050

(0.406 – 1.270)

0.010 – 0.020

(0.254 – 0.508)

× 45°

0

°– 8° TYP

0.008 – 0.010

(0.203 – 0.254)

SO8 1298

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

TYP

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

1

2

3

4

0.150 – 0.157**

(3.810 – 3.988)

8

7

6

5

0.189 – 0.197*

(4.801 – 5.004)

0.228 – 0.244

(5.791 – 6.197)

DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

*

**

TYPICAL APPLICATIO S

PACKAGE DESCRIPTIO