产品概述
描述
The A5973D is a step-down monolithic power switching regulator with a minimum switch current limit of 2.25 A so it is able to deliver up to 2 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an HSOP8 package with exposed frame, that allows to reduce the Rth(JA)down to approximately 40 °C/W. The device uses an internal P-channel DMOS transistor (with a typical RDS(on)of 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4 V only it fits the automotive applications requiring the device operation even in cold crank conditions. A pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.-
所有功能
- Qualified following the AEC-Q100 requirements (see PPAP for more details)
- 2 A DC output current
- Operating input voltage from 4 V to 36 V
- 3.3 V / (± 2%) reference voltage
- Output voltage adjustable from 1.235 V to 35 V
- Low dropout operation: 100% duty cycle
- 250 kHz internally fixed frequency
- Voltage feedforward
- Zero load current operation
- Internal current limiting
- Inhibit for zero current consumption
- Synchronization
- Protection against feedback disconnection
- Thermal shutdown
电路原理图
Start your design with the A5973D now
xwith our eDesignSuite online design aid utilities and simulation tools.
精选 视频
特别推荐
EDA符号、封装和3D模型
全部资源
Resource title | 版本 | Latest update |
---|
SPICE models (1)
Resource title | 版本 | Latest update | ||
---|---|---|---|---|
ZIP | 22 Sep 2016 | 22 Sep 2016 |
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Supply Design Tool
样片和购买
产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度(ºC) | Country of Origin | Budgetary Price (US$)*/Qty | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|
最小值 | 最大值 | |||||||||||
A5973D013TR | 1 distributors | 批量生产 | EAR99 | NEC | Tape And Reel | PowerSO-8 | -40 | 125 | PHILIPPINES | |