- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381205 > US3011 (Unisem Group) 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC PDF資料下載
參數(shù)資料
| 型號： | US3011 |
| 廠商： | Unisem Group |
| 英文描述： | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| 中文描述： | 5位可編程同步降壓控制器芯片 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 72K |
| 代理商： | US3011 |
US3011
4-1
Rev. 1.3
12/8/00
TYPICAL APPLICATION
DESCRIPTION
The US3011controller IC is specifically designed to meet
Intel specification for latest Pentium III
microproces-
sor applications as well as the next generation P6 fam-
ily processors. These products feature a patented topol-
ogy that in combination with a few external components
as shown in the typical application circuit ,will provide in
excess of 20A of output current for an on- board DC/DC
converter while automatically providing the right output
voltage via the 5 bit internal DAC.These devices also
features,
loss less current sensing by using the Rds-
on of the high side Power MOSFET as the sensing
resistor
, a Power Good window comparator that switches
its open collector output low when the output is outside
of a
±
10% window and an OVP output. Other features of
the device are ; Undervoltage lockout for both 5V and
12V supplies , an external programmable soft start func-
tion as well as programming the oscillator frequency by
using an external capacitor.
Dual Layout Compatible with HIP6004A
Designed to meet Intel specification of VRM8.4
for Pentium III
On board DAC programs the output voltage
from 1.3V to 3.5V. The US3011 remains on for
VID code of (11111).
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
Over Voltage Protection Output
Soft Start
High current totem pole driver for direct
driving of the external Power MOSFET
Power Good function
APPLICATIONS
Pentium III & Pentium II
processor DC to DC con-
verter application
Low cost Pentium with AGP
PACKAGE ORDER INFORMATION
Ta (
°
C)
0 TO 70
PRELIMINARY DATASHEET
FEATURES
5 BIT PROGRAMMABLE SYNCHRONOUS BUCK
CONTROLLER IC
Notes: Pentium II and Pentium III are
trade marks of Intel Corp.
5V
12V
VID0
Power Good
3011app1-1.1
Q2
VID1
VID2
VID3
VID4
L2
C5
R1
C3
C6
Q1
R2
R3
C8
R4
C10
C14
C1
C7
OVP
C2
R6
14
HDrv
LDrv
NC/Gnd
SS
CS+
Gnd
NC/Sen
D3
7
D2
6
D4
8
D1
5
D0
4
US3011
Vfb
V5/Comp
CS-
V12
NC/
Boot
15
13
17
12
16
20
1
19
9
10
3
11
18
2
OVP
PGd
Ct/Rt
C12
R8
C13
C11
R7
R9
R5
C9
D1
C4
Device Package VID Voltage Range
US3011CW 20 pin Plastic SOIC WB 1.3V to 3.5V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| US3011CW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3012 | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3012ACW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3012CW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3018 | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON BOARD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| US3011CW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3012 | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US-3012 | 功能描述:PROTO-BOARD 12PIN 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):- |
| US3012ACW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US3012CW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。