LTC1142HV 查看數據表（PDF） - Linear Technology

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LTC1142HV

Dual High Efficiency Synchronous Step-Down Switching Regulators

Linear Technology 

LTC1142/LTC1142L/LTC1142HV

TYPICAL APPLICATIO S

1400

1200

1000

800

600

400

200

0

0

1

2

3

4

SET RESISTANCE (kΩ)

1142 F16

Figure 16. LTC1142HV-ADJ Output Current vs Trickle Charge Set Resistance

(RX) for the Circuit in Figure 15 Using a 0.1Ω Current Sense Resistor RSENSE1

PACKAGE DESCRIPTIO

5.20 – 5.38**

(0.205 – 0.212)

Dimensions in inches (millimeters) unless otherwise noted.

G Package

28-Lead Plastic SSOP (0.209)

(LTC DWG # 05-08-1640)

1.73 – 1.99

(0.068 – 0.078)

10.07 – 10.33*

(0.397 – 0.407)

28 27 26 25 24 23 22 21 20 19 18 17 16 15

0° – 8°

0.13 – 0.22

(0.005 – 0.009)

0.55 – 0.95

(0.022 – 0.037)

NOTE: DIMENSIONS ARE IN MILLIMETERS

0.65

(0.0256)

BSC

0.25 – 0.38

(0.010 – 0.015)

*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.152mm (0.006") PER SIDE

**DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD

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

0.05 – 0.21

(0.002 – 0.008)

7.65 – 7.90

(0.301 – 0.311)

1 2 3 4 5 6 7 8 9 10 11 12 13 14

G28 SSOP 1098

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PART NUMBER DESCRIPTION

COMMENTS

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Fits SO-8 Footprint

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Current Mode, VIN to 36V, IOUT Up to 42A

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Dual Synchronous Switching Regulator with 5-Bit Desktop VID 1.3V to 3.5V Programmable Core Output Plus I/O Output

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Current Mode Ensures Accurate Current Sensing,

VIN Up to 36V, IOUT Up to 40A

No RSENSE is a trademark of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation.

20 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com

1142fd LT/TP 0600 2K REV D • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1995

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