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| 型号： | IR3876MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 7/21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
TYPICAL OPERATING DATA
Tested with demoboard shown in Figure 7, VIN = 12.6V, VCC = 5V, Vout = 1.05V, Fs = 300kHz, TA = 25 o C, no airflow,
unless otherwise specified
95%
85%
75%
100%
90%
80%
65%
55%
45%
35%
16V IN
12.6V IN
7V IN
70%
60%
50%
40%
1.05V OUT ; L = 1.2uH, 2.9m Ω
1.5V OUT ; L = 1.2uH, 2.9mΩ
3.3V OUT ; L = 2.2uH, 4.2mΩ
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Output Current (A)
Figure 1. Efficiency vs. Output Current for
VOUT = 1.05V, L = 1.2μH (2.9m Ω )
Output Current (A)
Figure 2. Efficiency vs. Output Current for
VIN = 12.6V
350
300
250
1200
1000
800
5.0 Vout
4.0
3.0
2.0
1.0
4.5
3.5
2.5
1.5
0.5
200
150
100
50
600
400
200
0
0
2
4 6 8
Output Current (A)
10
12
0
200
400
600
Frequency (kHz)
800
1000
Figure 3. Switching Frequency vs. Output
Current
1.058
1.058
Figure 4. Frequency vs. R FF
1.057
1.056
V OUT @ 16V IN
V OUT @ 12.6V IN
1.057
1.056
V OUT @ 7V IN
1.055
1.054
1.055
1.054
0
2
4
6
8
10
12
6
7
8
9
10 11 12 13 14 15 16 17
Output Current (A)
Figure 5. Output Voltage Regulation vs.
Output Current
Input Voltage (V)
Figure 6. Output Voltage Regulation vs.
Input Voltage at I OUT = 12A
7
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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 |
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