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参数资料
| 型号： | IRDC3637 |
| 厂商： | International Rectifier |
| 文件页数： | 3/21页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL SYNC BUCK REGULATOR |
| 产品变化通告： | (EP) Parts Discontinuation 25/May/2012 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.8V |
| 电流 - 输出： | 7A |
| 输入电压： | 4.5 ~ 5.5 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 400kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | IR3637 |
| 产品目录页面： | 1383 (CN2011-ZH PDF) |
| 相关产品： | IR3637ASTRPBFTR-ND - IC REG CTRLR BUCK PWM VM 8-SOIC IR3637ASPBF-ND - IC REG CTRLR BUCK PWM VM 8-SOIC IR3637STRPBFDKR-ND - IC REG CTRLR BUCK PWM VM 8-SOIC IR3637STRPBFCT-ND - IC REG CTRLR BUCK PWM VM 8-SOIC IR3637STRPBFTR-ND - IC REG CTRLR BUCK PWM VM 8-SOIC IR3637SPBF-ND - IC REG CTRLR BUCK PWM VM 8-SOIC |
IR3637SPBF
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
Error Amp
Fb Voltage Input Bias Current
Fb Voltage Input Bias Current
I FB1
I FB2
SS=3V, Fb=0.6V
SS=0V, Fb=0.6V
-0.1
-64
μ A
μ A
Transconductance
g m
450
600
800
μ mho
Oscillator
Frequency
Ramp-Amplitude Voltage
Freq
V RAMP
360
400
1.25
440
kHz
V
Output Drivers
Rise Time, Hdrv, Ldrv
Fall Time,Hdrv, Ldrv
T r
T f
C L =1500pF, Vcc=12V,2V to 9V
C L =1500pF, Vcc=12V, 9V to 2V
30
30
60
60
ns
ns
Dead Band Time
Max Duty Cycle
Min Duty Cycle
T DB
T ON
T OFF
Vcc=12V, 2V to 2V
Fb=0.6V, Freq=400kHz
Fb=1V
40
81
150
85
200
0
ns
%
%
PIN DESCRIPTIONS
PIN#
PIN SYMBOL PIN DESCRIPTION
1
2
3
4
5
6
7
8
Fb
Vcc
LDrv
Gnd
HDrv
Vc
Comp
SS / SD
This pin is connected directly to the output of the switching regulator via resistor divider to
set the output voltage and provide feedback to the error amplifier.
This pin provides biasing for the internal blocks of the IC as well as powers the low side
driver. A minimum of 0.1 μ F, high frequency capacitor must be connected from this pin to
ground to provide peak drive current capability.
Output driver for the synchronous power MOSFET.
IC's ground pin. This pin must be connected directly to the ground plane. A high frequency
capacitor (0.1 to 1 μ F) must be connected from Vcc and Vc pins to this pin for noise free
operation.
Output driver for the high side power MOSFET. The negative voltage at this pin may cause
instability for the gate drive circuit. To prevent this, a low forward voltage drop diode (e.g.
BAT54 or 1N4148) is required between this pin and ground.
This pin is connected to a voltage that must be at least 4V higher than the bus voltage
(assuming 5V threshold MOSFET) and powers the high side output driver. A minimum of
0.1 μ F, high frequency capacitor must be connected from this pin to ground to provide
peak drive current capability.
Compensation pin of the error amplifier. An external resistor and capacitor network is
typically connected from this pin to ground to provide loop compensation.
This pin provides user programmable soft-start function. Connect an extrnal capacitor
from this pin to ground to set the start up time of the output. The converter can be shut-
down by pulling this pin below 0.4V. During shutdown the upper FET is turned off and the
lower FET is turned on.
Rev. 1.1
06/16/05
www.irf.com
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRDC3637EVAL | 制造商:IRF 制造商全称:International Rectifier 功能描述:IR3637 EVALUATION BOARD USER GUIDE |
| IRDC3640 | 功能描述:电源管理IC开发工具 IR3640 12V PWM 1.5MHz Controller RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRDC3651 | 功能描述:电源管理IC开发工具 IR3651 EVAL BRD 400kHz RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRDC3710-DF | 功能描述:电源管理IC开发工具 1 PHASE SYNC-BUCK PWM CTRLLER IC RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRDC3710-QFN | 功能描述:电源管理IC开发工具 1 PHASE SYNC-BUCK PWM CTRLLER IC RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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