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參數(shù)資料
| 型號： | US3007 |
| 廠商： | Unisem Group |
| 英文描述： | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD |
| 中文描述： | 5位可編程同步降壓加上非同步，LDO控制器及船上200MmA穩(wěn)壓器 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 101K |
| 代理商： | US3007 |
US3007
4-1
Rev. 1.8
12/8/00
TYPICAL APPLICATION
DESCRIPTION
The US3007 controller IC is specifically designed to meet
Intel specification for Pentium II
microprocessor ap-
plications as well as the next generation of P6 family
processors.
The US3007 provides a single chip con-
troller IC for the Vcore , LDO controller for GTL+
and an internal 200mA regulator for clock supply
which are required for the Pentium II applications
.
It also contains a switching controller to convert 5V
to 3.3V regulator for an on board applications that
either uses AT type power supply or it is desired
not to rely on the ATX power supply’s 3.3V output
.
These devices feature a patented topology that in com-
bination with a few external components as shown in
the typical application circuit ,will provide in excess of
14A of output current for an on- board DC/DC converter
while automatically providing the right output voltage via
the 5 bit internal DAC .The US3007 also features,
loss
less current sensing for both switchers by using the
Rds-on of the high side Power MOSFET as the sens-
ing resistor, internal current limiting for the clock
supply
, a Power Good window comparator that switches
its open collector output low when any one of the out-
puts is outside of a pre programmed window. Other fea-
tures of the device are ; Undervoltage lockout for both
5V and 12V supplies, an external programmable soft
start function , programming the oscillator frequency via
an external resistor, OVP circuitry for both switcher out-
puts and an internal thermal shutdown.
Provides Single Chip Solution for Vcore,
GTL+ ,Clock Supply & 3.3V Switcher on board
Second Switcher Provides Simple Control for
the On board 3.3V supply
200 mA On board LDO regulator
Designed to meet Intel VRM 8.2 and 8.3
specification for Pentium II
On board DAC programs the output voltage
from 1.3V to 3.5V
Linear regulator controller on board for 1.5V
GTL+ supply
Loss less Short Circuit Protection
Synchronous operation allows maximum
efficiency
Patented architecture allows fixed frequency
operation as well as 100% duty cycle during
dynamic load
Minimum part count
Soft Start
High current totem pole driver for direct
driving of the external Power MOSFET
Power Good function Monitors all Outputs
OVP Circuitry Protects the Switcher Outputs
and generates a Fault output
Thermal Shutdown
APPLICATIONS
Total Power Soloution for Pentium II processor
application
PACKAGE ORDER INFORMATION
PRELIMINARY DATASHEET
FEATURES
5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYN-
CHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD
Notes: Pentium II and Pentium Pro are
trade marks of Intel Corp.
Ta (
°
C) Device Package
0 TO 70 US3007CW 28 pin Plastic SOIC WB
3007app3-1.0
LINEAR
CONTROL
SWITCHER2
CONTROL
LINEAR
REGULATOR
SWITCHER1
CONTROL
US3007
Vout3
Vout2
5V
Vout1
Vout4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| US3007CW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD |
| US3011 | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3011CW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3012 | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3012ACW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| US3007CW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD |
| US3008 | 制造商:UNITPOWER 制造商全稱:UNITPOWER 功能描述:N-Ch 30V Fast Switching MOSFETs |
| US-3008 | 功能描述:PROTO-BOARD 8PIN THRU-HOLE SIP RoHS:是 類別:原型開發(fā)產(chǎn)品 >> 適配器，可互換接口板 系列:3000, UNI-SIP™ 標(biāo)準(zhǔn)包裝:1 系列:- 原型板類型:- Package Accepted:- 尺寸/尺寸:- 位置數(shù):- 孔直徑:- 板厚度:- 材質(zhì):- |
| US3010 | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US-3010 | 功能描述:PROTO-BOARD 10PIN THRU-HOLE SIP RoHS:是 類別:原型開發(fā)產(chǎn)品 >> 適配器，可互換接口板 系列:3000, UNI-SIP™ 標(biāo)準(zhǔn)包裝:1 系列:- 原型板類型:- Package Accepted:- 尺寸/尺寸:- 位置數(shù):- 孔直徑:- 板厚度:- 材質(zhì):- |
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