Datasheet > US2076CT

US2076CT

更新时间： 2024-09-13 12:47:19

品牌	Logo	应用领域
UNISEM		稳压器控制器
页数	文件大小	规格书
4页	49K
描述
PWM SWITCHER CONTROLLER & 7.5A ADJUSTABLE LOW DROPOUT REGULATOR COMBO

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中文翻译

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US2076CT 数据手册

US2076

PWM SWITCHER CONTROLLER & 7.5A

ADJUSTABLE LOW DROPOUT REGULATOR COMBO

PATENTPENDING

PRELIMINARY DATASHEET

FEATURES

DESCRIPTION

The US2076 eliminates the need for a

seperate switching controller IC

The US2076 is a dual function IC combining a

switching controller and a 7.5A adjustable low

dropout regulator all in a compact 7 pin TO220 and

TO263 surface mount packages providing a total so-

lution for dual supply processor applications such as

an Intel P55C ä , AMD K6ä , as well as Cyrix 6X86Lä

and the M2ä processors. Typically in these applications

a dual supply regulator converts 5V to 3.3V for I/O sup-

ply and a jumper programmable supply of 1.25V to 3.5V

for CORE supply.The linear regulator portion in the

US2076 is an adjustable one that can be programmed

to 3.30V output and has a minimum of 7.5A current ca-

pability designed to provide ample current for most ap-

plications. The US2076 uses an internal regulator gen-

erated from the 12V supply to power the switching con-

troller as well as the 12V supply to drive the power

MOSFET, allowing a low cost N channel MOSFET

switch to be used. The IC also includes an error com-

parator for fast transient response, a precise voltage ref-

erence for setting the output voltage as well as a direct

drive of the MOSFET for the minimum part count.

Minimum part count allows lower system cost

Adjustable 7.5A LDO on board

1.1V Dropout at 7.5A

On board MOSFET driver

Fastest transient response of any controller

method. ( 0 to 100% Duty Cycle in 100 nS )

1% internal voltage reference

Internal Thermal shutdown

Internal Under Voltage Lockout protects

MOSFET during start-up

APPLICATIONS

Dual supply low voltage processor applications,

such as: P55Cä ,CYRIX M2ä , POWER PCä and

AMD K6ä

TYPICAL APPLICATION

I / O

Vin

Vout

CPU

Vfb2

Gnd

US2076

Vcc2 Det

Core

Vfb1

V12

Drv

2076app1-1.2

12V

Typical application of US2076 in a flexible motherboard designed for Intel

P55ä ,P54ä , AMD K5 & K6ä as well as Cyrix M1ä and M2ä applications.

Notes: P54C,P55C are trade marks of Intel Corp. K5 & K6 are trade marks of AMD corp. Cyrix 6X86L,M1,M2 are trade marks of Cyrix

Corp. Power PC is trade mark of IBM Corp.

PACKAGE ORDER INFORMATION

Tj (°C)

7 PIN PLASTIC

TO220 (T)

7 PIN PLASTIC

TO263 (M)

0 TO 125

US2076CT

US2076CM

Rev. 1.3

4/26/98

4-1

12 3 4

中文翻译

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US209BG-AB-S08-R	UTC	获取价格	BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION
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US209BG-AC-S08-R	UTC	获取价格	BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION
US209BG-AD-P08-R	UTC	获取价格	BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION
US209BG-AD-S08-R	UTC	获取价格	BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION

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