- 您现在的位置：买卖IC网 > PDF目录1810 > IR3876MTRPBF (International Rectifier)IC REG BUCK SYNC ADJ 12A 17QFN PDF资料下载
参数资料
| 型号： | IR3876MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 17/21页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 12A 17QFN |
| 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 ~ 21 V |
| 频率 - 开关： | 可调至 1MHz |
| 电流 - 输出： | 12A |
| 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） |
IR3876MPBF
LAYOUT RECOMMENDATION
Bypass Capacitor:
One 1μF high quality ceramic capacitor should be
placed as near VCC pin as possible. The other
end of capacitor can be connected to a via or
V IN
connected directly to GND plane. Use a GND
plane instead of a thin trace to the GND pin
Q1
ON
because a thin trace have too much impedance.
Boot Circuit:
IR3876
V OUT
C BOOT should be placed near the BOOT and
PHASE pins to reduce the impedance when the
Q2
OFF
C OUT
C IN
upper MOSFET turns on.
Power Stage:
Figure 23 shows the current paths and their
directions for the on and off periods. The on time
path has low average DC current and high AC
current. Therefore, it is recommended to place the
Figure 23. Current Path of Power Stage
input
ceramic
capacitor,
upper,
and
lower
MOSFET in a tight loop as shown in Figure 23.
The purpose of the tight loop from the input
ceramic
capacitor
is
to suppress
the
high
frequency (10MHz range) switching noise and
reduce Electromagnetic Interference (EMI). If this
path has high inductance, the circuit will cause
voltage spikes and ringing, and increase the
switching loss. The off time path has low AC and
high average DC current. Therefore, it should be
laid out with a tight loop and wide trace at both
ends of the inductor. Lowering the loop resistance
reduces the power loss. The typical resistance
value of 1-ounce copper thickness is 0.5 mΩ per
square inch.
17
相关PDF资料 |
PDF描述 |
|---|---|
| IR5001SPBF | IC CTRLR/MOSFET UNIV N-CH 8SOIC |
| IR51H310 | IC HALF BRIDGE SELF-OSC 9-SIP |
| IR51HD420 | IC HALF BRIDGE SELF-OSC 9-SIP |
| IR53HD420 | IC HALF BRIDGE SELF-OSC 9-SIP |
| IR6210STRL | IC DRIVER HIGH SIDE D2PAK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| IR3891 | 制造商:IRF 制造商全称:International Rectifier 功能描述:Dual output, 4A/Phase, Highly Integrated SupIRBuck |
| IR3891MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:Dual output, 4A/Phase, Highly Integrated SupIRBuck |
| IR3891MTR1PBF | 功能描述:直流/直流开关调节器 4A Phase Dual Reg Single 5V to 21V PWM 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:2 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:PQFN 5 x 6 |
| IR3891MTRPBF | 制造商:International Rectifier 功能描述:Dual Output 4 A/Phase 1 to 21 V 1.5 MHz Synchronous Buck Regulator-PQFN 5 x 6 mm |
发布紧急采购，3分钟左右您将得到回复。