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参数资料
| 型号： | IR3871MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 4/21页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 8A PQFN |
| 产品培训模块： | SupIRBuck? Family and POL Design Tools Overview |
| 标准包装： | 4,000 |
| 系列： | SupIRBuck™ |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 12 V |
| 输入电压： | 3 V ~ 26 V |
| 频率 - 开关： | 可调至 1MHz |
| 电流 - 输出： | 8A |
| 同步整流器： | 是 |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 17-PowerVQFN |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | PQFN（5x6） |
| 其它名称： | Q5214926 |
IR3871MPBF
Pin Description
NAME
NUMBER
I/O
DESCRIPTION
LEVEL
NC
ISET
PGOOD
GND
FB
SS
1
2
3
4,17
5
6
-----
5V
Reference
3.3V
3.3V
No connection.
Connecting resistor to PHASE pin sets over current trip point.
Power good open drain output – pull up with a resistor to 3.3V.
Bias return and signal reference.
Inverting input to PWM comparator, OVP / PGood sense.
Soft start/shutdown. This pin provides user programmable soft-
start function. Connect an external capacitor from this pin to
GND to set the startup time of the output voltage. The converter
can be shutdown by pulling this pin below 0.3V.
NC
3VCBP
7
8
-----
3.3V
No connection.
LDO output. A minimum of 1.0 μF ceramic capacitor is required
from 3VCBP to GND.
NC
VCC
9
10
-----
5V
No connection.
Gate drive supply. A minimum of 1.0μF ceramic capacitor must
be connected from this pin to the power return (PGND).
PGND
PHASE
VIN
BOOT
11
12
13
14
Reference
VIN
VIN
VIN +VCC
Power return.
Phase node (or switching node) of MOSFET half bridge.
Input voltage for the system.
Bootstrapped gate drive supply – connect a capacitor to
PHASE.
FF
EN
15
16
VIN
5V
Input voltage feed forward – sets on-time with a resistor to VIN.
Enable pin to turn on and off the device. Use two external
resistors to set the turn on threshold (see Electrical
Specifications ) for input voltage monitoring.
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3876MBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:12A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR |
| IR3876MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:12A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR |
| IR3876MTR1PBF | 功能描述:直流/直流开关调节器 12A SupIRBuck Reg 1000kHz, 3.0-21V in RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| IR3876MTRPBF | 功能描述:直流/直流开关调节器 12A SupIRBuck Reg 1000kHz, 3.0-21V in RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| IR3876TR1PBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:12A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR |
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