A5974AD Up to 2 A step down switching regulator for automotive applications

The A5974AD is a step-down monolithic power switching regulator with a minimum switch current limit of 2.5 A, it is therefore 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 a HSOP8 package with exposed frame, that allows to reduce the RTHJ-A 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 500 kHz. Having a minimum input voltage of only 4 V, it fits automotive applications requiring device operation even in cold crank conditions. Pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection

技术特性

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
500 kHz internally fixed frequency
Voltage feed-forward
Zero load current operation
Internal current limiting
Inhibit for zero current consumption
Synchronization
Protection against feedback disconnection
Thermal shutdown

管脚定义图

A5974AD 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
A5974ADTR	Active		1000	PowerSO-8	Tape And Reel
A5974AD	Active		1000	PowerSO-8	Tube

DATASHEET

描述	版本	大小
A5974AD : DS7198: Up to 2 A step-down switching regulator for automotive applications	1	1717KB

APPLICATION NOTES

描述	版本	大小
AN3288: g-Brake Lights: an adaptive rear lighting system based on the AIS326DQ inertial sensor and the STM8AF5168 MCU	2	1074KB

FLYERS

描述	版本	大小
FLA597X0111: Up to 3 A switching step-down regulators	1.0	740KB