- 您现在的位置：买卖IC网 > PDF目录13430 > IP1202 (International Rectifier)IC REG BUCK SYNC ADJ 30A 198BGA PDF资料下载
参数资料
| 型号： | IP1202 |
| 厂商： | International Rectifier |
| 文件页数： | 12/29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： | 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： | 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： | 散装 |
| 供应商设备封装： | BGA（15.5x9.25） |
| 其它名称： | *IP1202 |
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页当前第12页第13页第14页第15页第16页第17页第18页第19页第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
iP1202
iP1202 User?s Design Guidelines
The iP1202 can be configured as a dual channel 15A
or parallel single 30A power block consisting of opti-
mized power semiconductors, PWM control and its
associated passive components. It is based on a syn-
chronous buck topology and offers an optimized so-
lution where space, efficiency and noise caused by
parasitics are of concern. The phase shifted, two out-
put power block operates with fixed frequency volt-
age mode control and can be configured to operate
as a dual output or paralleled single output with cur-
rent sharing. The iP1202 components are integrated
in a ball grid array (BGA) package.
This threshold voltage should be taken into consid-
eration when designing sequencing profiles using
the iP1202 as it will effect start-up delays and ramp-
times.
For proper implementation of sequencing of outputs
using the iP1202, refer to IR Application Note AN-
1053 - Power sequencing techniques using iP1201
and iP1202.
Iss
V IN
The input operating voltage range of the iP1202 is
5.5V to 13.2V. Both channels of the power block have
a common input.
Enabling the Outputs
SS1/SS2
Css
iP1202
The ENABLE pin turns on and turns off both outputs
of the iP1202 simultaneously. The iP1202 outputs will
be turned off by floating the ENABLE pin. ENABLE
low will start the outputs. The converter can also be
shutdown by pulling the soft-start pins to PGND
through a logic level MOSFET the drain of which con-
nects to the soft start pin (see Fig.12). This feature
can be useful if sequencing or different start-up tim-
ing of the outputs are required. In situations where
the output has undergone a latched shutdown due to
overvoltage or overcurrent, cycling ENABLE will re-
set the outputs. Cycling soft start pins will not unlatch
the outputs.
Fig. 12: Soft Start/Enable Circuit
0.8Vtyp
V Css
V OUT
Fig. 13: Power Up Threshold
3V
Dual Soft Start
The Soft Start function provides a controlled rise of
the output voltage, thus limiting the inrush current
during start-up. The iP1202 provides two indepen-
dent soft start functions. The soft start pins can be
connected to the soft start capacitors to provide dif-
ferent start-up and sequencing profiles.
Each soft start function has an internal 25uA +/-20%
current source that charges the external soft start
capacitor C ss up to 3V. During power-up, the output
voltage starts ramping up only after the charging
voltage across the C ss capacitor has reached a
0.8Vtyp threshold, as shown in Fig. 13.
12
Mode of Operation
The iP1202 can be configured to provide either two
independent dual outputs or single paralleled output
with current share. In dual output mode, the two error
amplifiers of the PWM controller operate indepen-
dently. Each output voltage of the iP1202 block is
controlled by its own error amplifier. The output of
the error amplifier and the internally generated ramp
signal are compared to produce PWM pulses of fixed
frequency that drive the internal power switches. In
this mode, the VP-ref pin must be connected to Vref
pin. Vref pin is the internally generated 0.8V refer-
ence input of first error amplifier . Refer to the inter-
nal block diagram of the iP1202 in Fig.1.
www.irf.com
相关PDF资料 |
PDF描述 |
|---|---|
| VI-JN0-EY-F1 | CONVERTER MOD DC/DC 5V 50W |
| ABC26DREH | CONN EDGECARD 52POS .100 EYELET |
| EBM44DSUI | CONN EDGECARD 88POS DIP .156 SLD |
| GBB20DHBR | CONN EDGECARD 40POS R/A .050 SLD |
| EMC17DRXI-S734 | CONN EDGECARD 34POS DIP .100 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IP1202PBF | 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 |
| 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 |
发布紧急采购，3分钟左右您将得到回复。