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参数资料
| 型号： | IRDC3853 |
| 厂商： | International Rectifier |
| 文件页数： | 4/35页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR IR3853 |
| 标准包装： | 1 |
| 系列： | SupIRBuck™ |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.8V |
| 电流 - 输出： | 0 ~ 4A |
| 输入电压： | 12V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 600kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | IR3853 |
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PD-97516
IR3853MPbF
Pin Description
Pin
1
2
3
4;17
5
6
7
8
9
10
11
12
13
14
15
16
Rev 4.0
Name
Fb
Vsns
Comp
Gnd
Rt
SS/SD
OCSet
PGood
Sync
V CC
PGnd
SW
V IN
Boot
Enable
Seq
Description
Inverting input to the error amplifier. This pin is connected directly to the
output of the regulator via resistor divider to set the output voltage and
provide feedback to the error amplifier.
Sense pin for PGood
Output of error amplifier. An external resistor and capacitor network is
typically connected from this pin to Fb pin to provide loop compensation.
Signal ground for internal reference and control circuitry.
Set the switching frequency. Connect an external resistor from this pin to
Gnd to set the switching frequency. See Table 1 for Fs vs. Rt.
Soft start / shutdown. This pin provides user programmable soft-start
function. Connect an external capacitor from this pin to Gnd to set the
start up time of the output voltage. The converter can be shutdown by
pulling this pin below 0.3V.
Current limit set point. A resistor from this pin to SW pin will set the
current limit threshold.
Power Good status pin. Output is open drain. Connect a pull up resistor
from this pin to Vcc.
Sync pin, connect external system clock to synchronize multiple POLs
with the same frequency
This pin powers the internal IC and the drivers. A minimum of 1uF high
frequency capacitor must be connected from this pin to the power ground
(PGnd).
Power Ground. This pin serves as a separated ground for the MOSFET
drivers and should be connected to the system’s power ground plane.
Switch node. This pin is connected to the output inductor.
Input voltage connection pin.
Supply voltage for high side driver. A 0.1uF capacitor must be connected
from this pin to SW.
Enable pin to turn on and off the device. Use two external resistors to set
the turn on threshold (see Enable section). Connect this pin to Vcc if it is
not used.
Sequence pin. Use two external resistors to set Simultaneous Power up
sequencing. If this pin is not used connect to Vcc.
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRDC3853 - SUPIRBUCK | 制造商:International Rectifier 功能描述:INTERNATIONAL RECIFIER - GEN 2.1 SUPIRBUCK FAMILY - Bulk |
| IRDC3853 | 制造商:International Rectifier 功能描述:; MCU Supported Families:IR3853; Feature |
| IRDC3856 | 功能描述:BOARD EVAL FOR IR3856 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:SupIRBuck™ 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| IRDC3856 - SUPIRBUCK | 制造商:International Rectifier 功能描述:INTERNATIONAL RECIFIER - GEN 2.1 SUPIRBUCK FAMILY - Bulk |
| IRDC3856 | 制造商:International Rectifier 功能描述:; MCU Supported Families:IR3856; Feature |
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