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參數(shù)資料
| 型號： | SP6123A |
| 英文描述： | Low Voltage, Synchronous Step-Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| 中文描述： | 低，同步降壓電壓降壓PWM控制器，適合2A至10A條，占地面積小，DC - DC電源轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大小： | 154K |
| 代理商： | SP6123A |
1
Date: 5/25/04
SP6123 Low Voltage, Synchronous Step Down PWM Controller Copyright 2004 Sipex Corporation
SP6123/SP6123A
■
Optimized for Single Supply, 3V - 5.5V Applications
■
High Efficiency: Greater Than 95% Possible
■
Accurate Fixed 300kHz (SP6123) or 500kHz
(SP6123A) Frequency Operation
■
Fast Transient Response
■
Internal Soft Start Circuit
■
Accurate 0.8V Reference Allows Low Output
Voltages
■
Resistor Programmable Output Voltage
■
Loss-less Current Limit with High Side R
DS(ON)
Sensing
■
Hiccup Mode Current Limit Protection
■
Dual N-Channel MOSFET Synchronous Driver
■
Quiescent Current: 500
μ
A, 30
μ
A in Shutdown
■
8-Pin Surface Mount Package
Low Voltage, Synchronous Step-Down PWM Controller
Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters
APPLICATIONS
■
DSP
■
Microprocessor Core
■
I/O & Logic
■
Industrial Control
■
Distributed Power
■
Low Voltage Power
The SP6123 is a fixed frequency, voltage mode, synchronous PWM controller designed to
work from a single 5V or 3.3V input supply, providing excellent AC and DC regulation for high
efficiency power conversion. Requiring only few external components, the SP6123 pack-
aged in an 8-pin NSOIC, is especially suited for low voltage applications where cost, small
size and high efficiency are critical. The operating frequency is internally set to 300kHz
(SP6123) or 500kHz (SP6123A), allowing small inductor values and minimizing PC board
space. The SP6123 drives an all N-channel synchronous power MOSFET stage for improved
efficiency and includes an accurate 0.8V reference for low output voltage applications.
TYPICAL APPLICATION CIRCUIT
BST
SWN
V
CC
V
FB
COMP
GH
GL
GND
CC
RZ
15k
CB
2.2
μ
F
V
IN
SP6123A
CP
FDS6890A
C
IN
680
μ
F
R1
10k
V
OUT
IN
02A to 10A
(1.6V, 4A shown)
CBST
1
μ
F
MBR0530
L1
1.5
μ
H
FDS6890A
C
OUT1
470
μ
F
C
OUT3
1
μ
F
R2
10k
C
OUT2
470
μ
F
STPS2L25U
3V to 5.5V
1
2
3
4
5
6
7
8
COMP
GL
BST
GH
SWN
V
FB
V
CC
SP6123
8 Pin NSOIC
GND
Now Available in Lead Free Packaging
DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6123 | Low Voltage, Synchronous Step-Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| SP6125 | High-Voltage, Step Down Controller in TSOT6 |
| SP6125EK1L | High-Voltage, Step Down Controller in TSOT6 |
| SP6126_1 | Evaluation Board Manual |
| SP6126EB | Evaluation Board Manual |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6123ACN | 制造商:Exar Corporation 功能描述:Swithed-Mode Power Supply Controller, Voltage Mode Type, 8 Pin, Plastic, SOP |
| SP6123ACN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Voltage, Synchronous Step-Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| SP6123ACN-L | 功能描述:電壓模式 PWM 控制器 Low Voltage, Micro 8 Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(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 |
| SP6123ACN-L/TR | 功能描述:電壓模式 PWM 控制器 Low Voltage, Micro 8 Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(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 |
| SP6123AEN-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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