参数资料
型号: IR3640MPBF
厂商: International Rectifier
文件页数: 1/32页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 20-MLPQ
标准包装: 100
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.65MHz
占空比: 92%
电源电压: 4.5 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 20-VFQFN 裸露焊盘
包装: 管件
PD97401
IR3640MPBF
HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER
Features
Description
?
4.5V to 5.5V external supply
The IR3640M is a synchronous Buck PWM controller
?
Wide Input voltage from 1.5V to 24V
designed
for
performance
demanding
DC/DC
?
Output voltage range: 0.7V to 0.9*Vin
applications.
The
single
loop
voltage
mode
?
?
?
?
?
?
?
?
?
?
?
?
?
?
Programmable switching frequency up to 1.5MHz
Programmable Soft-start
Hiccup mode over current protection using Rds(on)
sensing
Programmable OCP
Reference voltage 0.7V (+/-1%, 0 o C <Tj<125 o C)
Enhanced Pre-bias start up
Output voltage tracking
Integrated MOSFET drivers and bootstrap diode
Operating temp: -40 o C <Tj<125 o C
External synchronization
Power Good output
Thermal shut down
Over voltage protection
Enable Input with voltage monitoring capability
architecture simplifies design while delivery precise
output voltage regulation and fast transient response.
Because of its wide input and output voltage range it
can be used in a large variety of point of load
applications within a system and across different
markets.
The part is designed to drive a pair of N-Channel
MOSFETs from 250kHz to 1.5Mhz switching
frequency giving designers the flexibility to optimize
the solution for best efficiency or smallest footprint.
The output voltage can be precisely regulated from as
low as 0.7V within a tolerance of +/-1% over
temperature, line and load variations.
? Pb-Free & Halogen-Free (RoHS Compliant)
? 20 -Lead MLPQ package (3mmx4mm)
Applications
The device also integrates a diversity of features
including; programmable soft start, pre-bias start up,
voltage tracking, external synchronization, enable
?
Point of Load Power Architectures
input and Power Good output.
Fault protection
?
?
?
Server & Netcom Applications
Game Consoles
General DC/DC Converters
features include thermal shutdown, over voltage and
over current shutdown and under voltage lock out.
Typical Application
06/15/2009
1
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IR3640MTRPBF 功能描述:开关变换器、稳压器与控制器 HI FREQ SYNC PWM 4.5 to 5.5V 1.5MHz RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel
IR3651 制造商:IRF 制造商全称:International Rectifier 功能描述:
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