参数资料
型号: IR3622AMTRPBF
厂商: International Rectifier
文件页数: 1/33页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 32MLPQ
产品变化通告: (EP) Parts Discontinuation 25/May/2012
标准包装: 1
PWM 型: 电压模式
输出数: 2
频率 - 最大: 600kHz
占空比: 84%
电源电压: 4.5 V ~ 14.5 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: 32-VFQFN 裸露焊盘
包装: 标准包装
其它名称: IR3622AMTRPBFDKR
Data Sheet No PD 94723 revA
IR3622AMPbF
HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP
DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING
Features
Description
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Dual Synchronous Controller with 180 o
Out of Phase Operation
Configurable to 2-Independent Outputs or Current
Shared Single Output
Output Voltage Tracking
Power up / down Sequencing
Current Sharing Using Inductor’s DCR
+/-1% Accurate Reference Voltage
Programmable Switching Frequency up 600kHz
Programmable Over Current Protection
Hiccup Current Limit Using MOSFET R ds(on) sensing
Latched Overvoltage Protection
Dual Programmable Soft-Starts
Programmable Enable Input
Pre-Bias Start-up
Dual Power Good Outputs
On Board Regulator
External Frequency Synchronization
Thermal Protection
32-Lead MLPQ Package
The IR3622A IC integrates a dual synchronous
Buck controller, providing a high performance and
flexible solution. The IR3622A can be configured
as 2-independent outputs or as current shared
single output. The current share configuration is
ideal for high current applications.
The IR3622A enables output tracking and
sequencing of multiple rails in either ratiometric or
simultaneous fashion. The IR3622A features 180 o
out of phase operation which reduces the
required input/output capacitance and results in
lower number of capacitors. The switching
frequency is programmable from 200kHz to
600kHz per phase using one external resistor. In
addition, IR3622A also allows the switching
frequency to be synchronized to an external clock
signal.
Other key features offered by this device include
two independent programmable soft starts, two
independent power good outputs, precision
enable input, and under voltage lockout function.
Applications
? Embedded Telecom Systems
? Distributed Point of Load Power Architectures
? Computing Peripheral Voltage Regulator
? Graphics Card
? General DC/DC Converters
Vin
The current limit is provided by sensing the lower
MOSFET's on-resistance for optimum cost and
performance. The output voltages are monitored
through dedicated pins to protect against open
circuit, and enhance faster response to an
overvoltage event.
Vo1
Vo1
Rt
IR3622A
HDrv1
OCSet1
Vout1
Vo2
Vo2
Vout1
Comp1
Comp2
SS1 / SD
SS2 / SD
Track
LDrv1
PGnd1
HDrv2
OCSet2
Vin
Vout2
Ratiometric Powerup
Vo1
Vo2
Ratiometric Powerdown
Vo1
Vo2
LDrv2
Gnd
PGnd2
Simultaneous Powerup
Simultaneous Powerdown
ORDERING INFORMATION
PKG
DESIG
PACKAGE
DESCRIPTION
PIN PARTS
COUNT PER BAG
PARTS
PER REEL
T&R
ORIANTAION
M
M
IR3622AMPbF
IR3622AMTRPbF
32
32
100
--------
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3 000
Fig A
www.irf.com
03/21/07
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IR3622MPBF 功能描述:IC REG CTRLR BUCK PWM VM 32MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR)
IR3622MTRPBF 功能描述:开关变换器、稳压器与控制器 HI FREQ 2-PHASE Single or Dual SYNCH 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
IR3623MPBF 功能描述:IC REG CTRLR BUCK PWM VM 32MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR)
IR3623MPBF_1 制造商:IRF 制造商全称:International Rectifier 功能描述:HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING
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