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參數(shù)資料
| 型號： | SP6656ER |
| 英文描述： | High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output |
| 中文描述： | 高效率400mA同步降壓穩(wěn)壓器的可編程輸出位 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 185K |
| 代理商： | SP6656ER |
1
Date: 7/9/04
SP6656 High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output Copyright 2004 Sipex Corporation
SP6656
The SP6656 is a 400mA synchronous buck regulator that is ideal for portable applications that
use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6656’s proprietary control loop, 20
μ
A light
load quiescent current, and 0.3
power switches provide excellent efficiency across a wide range
of output currents. As the input battery supply decreases towards the output voltage the SP6656
seamlessly transitions into 100% duty ratio operation further extending useful battery life. The
SP6656 is protected against overload and short circuit conditions with a precise inductor peak
current limit. Other features include externally programmable output voltage down to 1.0V, logic
controlled output voltage selection, logic level shutdown control, and 140
°
C over temperature
shutdown.
DESCRIPTION
FEATURES
■
98% Efficiency Possible
■
Small 3X3 10-Pin DFN Package
■
Ultra-low 20
μ
A Quiescent Current
■
625mA Inductor Peak Current Limit
■
Guaranteed Minimum 400mA Output
Current
■
2.7V to 5.5V Input Voltage Range
■
Output Adjustable Down to 1.0V
■
100% Duty Ratio Low Dropout
Operation
■
80
μ
A Light Load Quiescent Current in
Dropout
■
Output Voltage Logic Selection
■
Ideal for portable designs powered with
Li Ion battery
APPLICATIONS
■
Cell Phones
■
PDA's
■
DSC's
■
MP3 Players
■
USB Devices
■
Point of Use Power
TYPICAL APPLICATION SCHEMATIC
Now Available in Lead Free Packaging
High Efficiency 400mA Synchronous Buck Regulator with
Bit Programmable Output
SP6656
10 Pin DFN
10
9
8
7
6
1
2
3
4
5
P
VIN
VIN
OVSO
OVSI
EN
LX
PGND
GND
VOUT
FB
VI
VO
10
μ
F
L1
10
μ
H
V
400mA
2.7V to 5.5V Input
10
R
VIN
1
μ
F
SP6656
P
VIN
OVSO
EN
LX
GND
V
OUT
FB
P
GND
V
IN
10
μ
F
C
IN
CV
IN
C
OUT
R
F
CF
22pF
R
I
OVSI
R
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6656 | High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output |
| SP6660CN | 200mA Charge Pump Inverter or Doubler |
| SP6660EB | 200mA Charge Pump Inverter or Doubler |
| SP6660EN | 200mA Charge Pump Inverter or Doubler |
| SP6660EP | 200mA Charge Pump Inverter or Doubler |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6656ER/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency 400mA Synchronous Buck Regulator with Bit Programmable Output |
| SP6656ER3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency 400mA Synchronous Buck Regulator with Dynamically Adjustable Voltage Output |
| SP6656ER3-L | 功能描述:DC/DC 開關(guān)控制器 High Eff. 400mA Sync. Buck Reg RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| SP6656ER3-L/TR | 功能描述:DC/DC 開關(guān)控制器 High Eff 400mA Synchronous RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| SP6656ER3TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency 400mA Synchronous Buck Regulator with Dynamically Adjustable Voltage Output |
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