参数资料
型号: IP1202PBF
厂商: International Rectifier
文件页数: 21/29页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 30A 198BG
产品变化通告: (EP) Parts Discontinuation 25/May/2012
标准包装: 10
系列: iPOWIR™
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.8 V ~ 5 V
输入电压: 5.5 V ~ 13.2 V
频率 - 开关: 200kHz ~ 400kHz
电流 - 输出: 30A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 198-BGA(161 凸块)
包装: 管件
供应商设备封装: BGA(15.5x9.25)
iP1202PbF
Vsw1
L1
R sh1
iP1202PbF
Vp-Ref
E/A2
FB2
CC2
R sh2
VOUT
R Load
C11
L2
R6
Vsw2
Fig. 20: Output 2 error amplifier compensation net-
work for parallel configuration.
Resistor R 6 of the compensation network is calcu-
lated according to equation (26)
R 6 = V ramp ×
1
g m × R sh 1
×
2 π × L 2 × f 02
V in
(26)
It is recommended to set the channel 2 crossover
frequency 30% higher than the voltage loop cross-
over frequency.
The power stage of the current loop has a dominant
pole at frequency expressed by equation (27):
f p =
R eq
2 ? π ? L 2
(27)
where, R eq represents the total resistance of the
power stage that includes the Rdson of the FET
switches, the DC resistance of the inductor and the
shunt resistance, and is expressed by equation (28):
R eq = R dson + R L + R sh (28)
use 10mohm for FET Rdson.
To calculate for C11, place the zero frequency fz at
10 times the dominant pole frequency f p using equa-
tion (29):
f z = 10 × f p
C 11 =
1
2 ? π × R 6 × f z
(29)
Select C 11 ≤ 6 . 8 nf
www.irf.com
21
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相关代理商/技术参数
参数描述
IP1202PBF-EL 制造商:International Rectifier 功能描述:
IP1202TR 功能描述:开关变换器、稳压器与控制器 DUAL OUTPUT 2-Phase 5.5V to 13.2V 15A 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
IP1202TRPBF 功能描述:开关变换器、稳压器与控制器 DUAL OUTPUT 2-Phase 5.5V to 13.2V 15A 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
IP1203 功能描述:开关变换器、稳压器与控制器 1 OUTPUT FULL FCTN SYNC BUCK PWR BLOCK 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
IP1203PBF 功能描述:开关变换器、稳压器与控制器 1 OUTPUT FULL FCTN SYNC BUCK PWR BLOCK 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