SC4510 查看數據表（PDF） - Semtech Corporation

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SC4510

High Performance Synchronous Buck Controller With Reference Tracking

Semtech Corporation 

SC4510

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: TA = TJ = -40°C to +85°C, AVCC/PVCC = 12V, Fosc = 300 kHz, SS/EN = 5V

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Power Good Output

Overvoltage sense threshold

Undervoltage sense threshold

Power Good voltage

VOVTH

VUVTH

VPG

REFIN = 2.5V

REFIN = 2.5V

IPG = 5 mA

IPG = 2.5 mA

Output under fault

2.8

V

2.2

V

1.5

V

0.4

V

Output Drive

High Side Gate Drive

IGDH

Source or sink

1

A

Low Side Gate Drive

IGDL

Source or sink

1

A

Dead Time Between Drives

60

90

120

nS

Rise Time

COUT = 1000 pF

20

nS

Fall Time

COUT = 1000 pF

20

nS

Note:

(1) Guaranteed by design. Not tested in production.

Ordering Information

Pin Configuration

Part Number

Package(1) Temp. Range (TJ)

SC4510ITSTR

SC4510ITSTRT(2)

TSSOP-20

-40°C to +85°C

Notes:

(1) Only available in tape and reel packaging.

A reel contains 2500 devices.

(2) Lead free product. This product is fully WEEE and RoHS

compliant.

REF

REFIN

REFOUT

CS+

CS-

PGOOD

AVCC

PVCC

GDL

PGND

TOP VIEW

1

20

2

19

3

18

4

17

5

16

6

15

7

14

8

13

9

12

10

11

AGND

SYNC

COMP

IN-

ROSC

SS/EN

VIN

VPN

BST

GDH

(20 Pin TSSOP)

© 2004 Semtech Corp.

4

www.semtech.com

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