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参数资料
| 型号： | IRDCIP1001-A |
| 厂商： | International Rectifier |
| 文件页数： | 12/18页 |
| 文件大小： | 0K |
| 描述： | CONV SGL PHA SYNC BUCK 3.3-4.5V |
| 标准包装： | 1 |
| 系列： | iPOWIR™ |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 2V |
| 电流 - 输出： | 20A |
| 输入电压： | 3.3 ~ 4.5 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 200kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | iP1001 |
| 相关产品： | IP1001TR-ND - IC REG BUCK SYNC ADJ 20A 256BGA IP1001-ND - IC REG BUCK SYNC ADJ 20A 256BGA |
| 其它名称： | *IRDCIP1001-A |
iP1001
Application Issues
Setting V OUT above 2V
In certain applications where the output voltage is
required to be set higher than the maximum DAC
code setting of 2V, it is possible to use an external
resistive voltage divider which, for accuracy, needs
to have 1% or better tolerance. The switching
frequency should be set at 200kHz by connecting
the FREQ pin to V DD . Also, the output voltage should
never be set higher than 3.3V with a V IN minimum of
5V, or 2.5V with a V IN minimum of 3.3V. The DAC
code should be set to 2V and the following equation
used to select the resistors:
V OUT = V F
x
(1 + R3/R4)
See the reference design for reference designators.
Note that the impedance at V F is 180K ? ±35%. It is
recommended that R3 be calculated assuming a
value of 1k ? for R4. Connect V FS to V F and GNDS to
PGND.
Duty Cycle D = V OUT / V IN >50%
For duty cycles >50% the switching frequency should
be set at 200kHz. 300kHz switching frequency can
be selected if the output is less than 2V and the duty
cycle is <50%.
For duty cycles >50%, add external compensation
ramp from the Vsw terminal of the iP1001 device as
shown in the reference design through R9 resistor
and C21 capacitor (Fig 10a.). For optimum perfor-
mance maintain a RC time constant of approximately
5 μ s.
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRDCIP1001-B | 功能描述:CONV SGL PHA SYNC BUCK 5-12V RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| IRDCIP1201-A | 功能描述:电源管理IC开发工具 iP1201 30A 300kHz Dual 15A 3.14V Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRDCIP1202-A | 功能描述:BUCK CONV REF DESIGN KIT IP1202 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:iPOWIR™ 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| IRDCIP1203-A | 功能描述:电源管理IC开发工具 IP1203 BUCK EVAL BRD 200kHz-400kHz RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRDCIP1206-A | 功能描述:电源管理IC开发工具 IP1206 BUCK EVAL BRD 300kHz RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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