AW37420STR

5V Synchronous Buck Converter

产品手册：

在线预览 - AW37420STR - 产品手册

参考价格

1-99￥1.15
100-249￥0.95
250-499￥0.76
500-999￥0.60
1000+￥0.46

产品详细信息

参数

Power Supply (Min) (V)	2.5
Power Supply (Max) (V)	5.5
IQ (μA)	35
Load Current (Max) (A)	2
Vout (Min) (V)	0.6
Vout (Max) (V)	5.5
Control Interface	GPIO
EMI Optimization	NO
Temperature	-40℃~85℃
Special Function	PWM Mode Power Good PSM Mode
Package (mm)	SOT23-5L

封装 | 引脚 | 尺寸

SOT23-5L

特性

Up to 95% Efficiency 2.5V to 5.5V Input Voltage Range Adjustable Output Voltage from 0.6 V to VIN Low RDS(ON) Switches 110 mΩ / 75 mΩ 1.5MHz Typical Switching Frequency 2A Maximum Output Current Low Dropout With 100% Duty Cycle Power Save Mode for Light Load Efficiency 35μA Operating Quiescent Current Power Good Output Over Current Protection Over Temperature Protection Internal Soft Startup Available ｉｎ DFN 2X2-8L, SOT23-5L ａｎｄ SOT23-6L Package

说明

The AW37420 is a synchronous step-down buck DC-DC converter with high efficiency and low power consumption. The device integrates switches capable of delivering an output current up to 2 A.

The device operates at typically 1.5 MHz frequency pulse width modulation (PWM) at moderate to heavy load currents. At light load, the device automatically converts to Power Save Mode (PSM) to maintain high efficiency over the entire load current range. In shutdown, the current consumption less than 2 μA.

The AW37420 provides an adjustable output voltage via an external resistor divider. It has internal soft start circuit to limit the inrush current during startup. Other features like over current protection, over temperature protection and power good are built-in. The device is available in DFN 2X2-8L, SOT23-5L and SOT23-6L package.

技术文档

类型	项目标题	语言	日期
产品设计指南	AW37420 Hardware Design Guide	中文	2023-06-09
产品手册	DS_AW37420_EN_V1.3	英文	2025-12-04
技术帖	【技术贴】DC/DC的FB引脚作用详解	中文	2024-07-05

设计和开发

如需其他信息或资源，请查看下方列表，点击标题即可进入详情页面。

硬件开发

评估板

AW37420XSTR_EVB_V1.0 — AW37420XSTR EVB是针对AW37420STR与AW37420ASTR通用DC-DC功能设计的演示板，主要包含输入、输出等功率引脚（测试点）和各配置引脚。

用于高效同步Buck AW37420STR与AW37420ASTR的EVB评估主板。

了解详情

硬件开发

评估板

AW37420XSTR_EVB_V1.0 — AW37420XSTR EVB是针对AW37420STR与AW37420ASTR通用DC-DC功能设计的演示板，主要包含输入、输出等功率引脚（测试点）和各配置引脚。

用于高效同步Buck AW37420STR与AW37420ASTR的EVB评估主板。

了解详情