参数资料
型号: ADP2303ARDZ-3.3-R7
厂商: Analog Devices Inc
文件页数: 5/28页
文件大小: 0K
描述: IC REG BUCK 3.3V 3A 8SOIC
标准包装: 1
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 3.3V
输入电压: 3 V ~ 20 V
PWM 型: 电流模式
频率 - 开关: 700kHz
电流 - 输出: 3A
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: 8-SOIC(0.154",3.90mm Width)裸露焊盘
包装: 标准包装
供应商设备封装: 8-SOIC-EP
其它名称: ADP2303ARDZ-3.3-R7DKR

Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADP2302/ADP2303
BST 1
VIN 2
EN 3
ADP2302
ADP2303
TOP VIEW
8
7
6
SW
GND
NC
PGOOD 4 (Not to Scale)
5
FB
NOTES
1. NC = NO CONNECT.
2. THE EXPOSED PAD SHOULD BE SOLDERED
TO AN EXTERNAL GROUND PLANE UNDERNEATH
THE IC FOR THERMAL DISSIPATION.
Figure 3. Pin Configuration (Top View)
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9 (EPAD)
Mnemonic
BST
VIN
EN
PGOOD
FB
NC
GND
SW
Exposed Pad
Description
Bootstrap Supply for the High-Side MOSFET Driver. A 0.1 μF capacitor is connected between SW and BST to
provide a floating driver voltage for the power switch.
Power Input. Connect to the input power source with a ceramic bypass capacitor to GND directly from this
pin.
Output Enable. Pull this pin high to enable the output. Pull this pin low to disable the output. This pin can
also be used as a programmable UVLO input. This pin has an internal 1.2 μA pull-down current to GND.
Power-Good Open-Drain Output.
Feedback Voltage Sense Input. For the adjustable version, connect this pin to a resistive divider from V OUT . For
the fixed output version, connect this pin to V OUT directly.
Used for internal testing. Connect to GND or leave this pin floating to ensure proper operation.
Ground. Connect this pin to the ground plane.
Switch Node Output. Connect an inductor to V OUT and a catch diode to GND from this pin.
The exposed pad should be soldered to an external ground plane underneath the IC for thermal dissipation.
Rev. A | Page 5 of 28
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