SC1155(2000) Ver la hoja de datos (PDF) - Semtech Corporation

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SC1155
(Rev.:2000)

PROGRAMMABLE SYNCHRONOUS DC/DC HYSTERETIC CONTROLLER WITH VRM 9.0 VID RANGE

Semtech Corporation 

PROGRAMMABLE SYNCHRONOUS

DC/DC HYSTERETIC CONTROLLER

WITH VRM 9.0 VID RANGE

PRELIMINARY - August 7, 2000

ELECTRICAL CHARACTERISTICS (cont.)

Unless specified: 0 < TJ < 125°C, VIN12V = 12V

PARAMETER

SYMBOL

CONDITIONS

DRIVE REGULATOR

DRV Voltage

VDRV

Load Regulation

VldregDRV

Short Circuit Current

IshortDRV

HIGH-SIDE OUTPUT DRIVER

11.4 < VIN12V < 12.6V,

IDRV = 50mA

1mA < IDRV < 50mA

Peak Output Current

IsrcHIGHDR’ duty cycle < 2%, tpw < 100us,

IsinkHIGHDR

TJ = 125°C

VBOOT - VBOOTLO = 6.5V, VHIGHDR =

1.5V (src), or VHIGHDR = 5V (sink)

(Note 1)

Output Resistance

RsrcHIGHDR’

TJ = 125°C

VBOOT - VBOOTLO = 6.5V,

VHIGHDR = 6V

RsinkHIGHDR TJ = 125°C

VBOOT - VBOOTLO = 6.5V,

VHIGHDR = 0.5V

LOW-SIDE OUTPUT DRIVER

Peak Output Current

Output Resistance

IsrcLOWDR’

IsinkLOWDR

duty cycle < 2%, tpw < 100us,

TJ = 125°C

VDRV = 6.5V, VLOWDR = 1.5V (src),

or VLOWDR = 5V (sink) (Note 1)

RsrcLOWDR’ TJ = 125°C

VDRV = 6.5V, VLOWDR = 6V

RsinkLOWDR TJ = 125°C

VDRV = 6.5V, VLOWDR = 0.5V

MIN TYP

7

100

100

2

2

SC1155

MAX UNITS

9

V

mV

mA

A

45

Ω

5

A

45

Ω

5

6

© 2000 SEMTECH CORP.

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