- 您现在的位置：买卖IC网 > PDF目录1807 > IP1202TRPBF (International Rectifier)IC REG BUCK SYNC ADJ 30A 198BGA PDF资料下载
参数资料
| 型号： | IP1202TRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 20/29页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 30A 198BGA |
| 产品变化通告： | (EP) Parts Discontinuation 25/May/2012 |
| 标准包装： | 750 |
| 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： | 是 |
| 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： | 带卷 (TR) |
| 供应商设备封装： | BGA（15.5x9.25） |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页当前第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
iP1202PbF
(20)
=
f p 2
f p 3 ?
2 π × R 23 × C 18
f z 1 =
2 π × R 23 × C 9
put capacitor C o and determine the value of R 24 from
equation (20). Make sure R 24 <
R 7 = R 9 x V ref V
(25)
-
f z 2 =
2 π × R 9 × C 19
f 0 = V 0 . 8 × V IN × R 23 × C 19 ×
(24)
2 π × L 0 × C 0
Select C18 such that C 18 <
Thefrequenciesofthethreepolesandthetwozeros
of the type III compensation scheme are represented
by the following equations:
f p1 = 0 (19)
1
2 π × R 24 × C 19
1
(21)
1
(22)
1
(23)
The crossover frequency f 0 for type III compensation
is represented by equation (24):
1 1
ramp
Follow the steps below to determine the feedback
loop compensation component values:
1. Select a zero db crossover frequency f 0 in the range
of 10% to 20% of the switching frequency f sw.
2. Select R 23 ~ 10k ?
3. Place the first zero f z1 at 75% of the resonant fre-
quency f LC of the output filter.
Determine C 9 from equation (22).
4. Place a third pole f P3 at or near the switching fre-
quency f SW .
C 9
10
5. Calculate C 19 from equation (24).
6. Place the second zero at 125% of the resonant
frequency f LC of the output filter. Calculate R 9 using
equation (23).
20
7. Place the second pole f p2 at or near f esr of the out-
R 9
10
8. Use equation (25) to calculate R 7 .
V
o ref
More than one iteration may be required to calculate
the values of the compensation components if cross-
over frequencies higher than the range specified in
step 1 are required (for higher bandwidths and faster
transient response performance). To ensure stability
a phase margin greater than 45° should be achieved.
Refer to AN-1043 for more detailed compensation
techniques using Transconductance Amplifiers.
Compensation in Current Share Mode
The iP1202PbF can be configured in single output
paralleled configuration. The feedback loop of the first
output is closed around the output voltage, and the
second amplifier, which is also a transconductance
one,
forces equal sharing of the inductor currents in both
outputs.
Voltage Loop
Type II and Type III methods of voltage loop com-
pensation discussed above, can be used to com-
pensate the voltage loop of a single output
iP1202PbF. In this case, the total amount of capaci-
tance seen by both channels and the inductance of
the voltage controlling channel should be consid-
ered for compensation.
Current Loop
Use the following procedure for current loop com-
pensation:
In Fig. 20, L 1 and L 2 are the inductors for outputs 1
and 2 respectively. Rsh1 and Rsh2 are the current
sensing shunts for the same outputs.
www.irf.com
相关PDF资料 |
PDF描述 |
|---|---|
| IP1202TR | IC REG BUCK SYNC ADJ 30A 198BGA |
| IP1203TRPBF | IC REG BUCK SYNC ADJ 15A 24LGA |
| IP1203TR | IC REG BUCK SYNC ADJ 15A 24LGA |
| IP1206TRPBF | IC REG BUCK SYNC ADJ 30A/15A LGA |
| IP1827PBF | IC REG BUCK SYNC ADJ 25A LGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| IP1203SA | 制造商:XP Power 功能描述:DC/DC CONVERTER 3W 4:1 I/P3.3V O/P 制造商:XP Power 功能描述:DC/DC CONVERTER 3.3V 3W 制造商:XP Power 功能描述:DC/DC CONVERTER, 3W, 4:1 I/P3.3V O/P 制造商:XP Power 功能描述:DC-DC CONV, ISO POL, 1 O/P, 3W, 700mA, 3.3V; DC / DC Converter Type:Isolated POL; DC / DC Converter Output Type:Fixed; Input Voltage DC Min:4.5V; Input Voltage DC Max:18V; No. of Outputs:1; Output Voltage Nom.:3.3V; Depth:21.85mm ;RoHS Compliant: Yes |
| IP1203TR | 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 |
| IP1203TRPBF | 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 |
发布紧急采购，3分钟左右您将得到回复。