參數(shù)資料
型號(hào)： SP61346
英文描述： Dual Supply Synchronous Buck Controller
中文描述： 雙電源同步降壓控制器
文件頁(yè)數(shù)： 1/14頁(yè)
文件大小： 188K
代理商： SP61346
1
Date: 2/16/06
SP6134 Dual Supply, Synchronous Buck Controller Copyright 2006 Sipex Corporation
SP6134
FEATURES
■
3V to 1
5
V Step Down Achieved Using Dual Input
■
Small 10-Pin MSOP Package
■
2A to 15A Ouput Capability
■
Highly Integrated Design, Minimal Components
■
UVLO Detects Both V
CC
and V
IN
■
Short Circuit Protection with Auto-Restart
■
On-Board 1.5
sink (2
source) NFET Drivers
■
Programmable Soft Start
■
Fast Transient Response
■
High Efficiency: Greater than 94% Possible
■
Asynchronous Start-Up into a Pre-Charged Output
■
U.S. Patent #6,922,041
APPLICATIONS
■
12V DPA
■
Communications Systems
■
Graphics Cards
Dual Supply Synchronous Buck Controller
DESCRIPTION
The SP6134 is a synchronous step-down switching regulator controller optimized for high efficiency. The part is
designed to be especially attractive for dual supply, 12V step down with 5V used to power the controller. This lower V
CC
voltage minimizes power dissipation in the part. The SP6134 is designed to drive a pair of external NFETs using a fixed
600kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output
short circuit protection. The SP6134 is available in the cost and space saving 10-pin MSOP
.
TYPICAL APPLICATION CIRCUIT
V
CC
GL
GND
V
FB
COMP
SP6134
10 Pin MSOP
1
2
3
4
5
10
9
8
7
6
BST
GH
SWN
SS
UVIN
8 7 6 5
1 2 3
4
CSS
CBST
1
μ
F
14FDS6676S
C3
47
μ
F
6.3V
R1
V
OUT
≤
VIN
0.8V - 3.3V
R2
C
VCC
10
μ
F
6.3V
221k, R3
100k, R4
1CF1
CZ2
820pF
CP1
56pF
fs=600Khz
RZ2
40.2k, 1%
FDS6676S
8 7 6 5
4
1 2 3
MBDBST
SP6134
GL
1
2
3
4
5
10
9
8
7
6
VCC
GND
VFB
COMP
BST
GH
SWN
SS
UVIN
UV
IN
V
CC
GND 3
RLF
U1
C
Ceramic
8050
X5R
QT
SS
GND2
C3, C4
C4
47
μ
F
6.3V
RZ3
CZ3
C1
22
μ
F
16V
C2
22
μ
F
16V
GND
3.5VVIN
C1, C2
VOUT=(R1/R2 +1)VFB
BR5
QB
= 5V @ 30mA
0.8V
Now Available in Lead Free Packaging
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP6134CU 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Dual Supply Synchronous Buck Controller
SP6134CU/TR 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Dual Supply Synchronous Buck Controller
SP6134CU-L 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Dual-Supply Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SP6134CU-L/TR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Dual-Supply Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SP6134EB 功能描述:電壓模式 PWM 控制器 Dual Supply Sync Buck Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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