DESCRIPTION

The L4964 is a stepdown power switching regulator delivering4A at a voltage variable from 5.1V to 28V. Features of the device include overload protection, soft start, remote inhibit, thermal protection, a reset outputfor microprocessors and a PWM comparator input for synchronization in multichipconfigurations.

The L4964 is mounted in a 15-lead Multiwatt® plastic power package and requires very few external components.

Efficient operation at switching frequencies up to 120kHz allows a reductionin the size and cost of external filter components.

. 4 A OUTPUT CURRENT

. 5.1 V TO 28 V OUTPUT VOLTAGE RANGE

. 0 TO 100 DUTY CYCLE RANGE

. PRECISE (± 3 ) ON-CHIP REFERENCE

. SWITCHING FREQUENCY UP TO 120 KHz

. VERY HIGH EFFICIENCY (UP TO 90 )

. VERY FEW EXTERNAL COMPONENTS

. SOFT START

. RESET OUTPUT

. CURRENT LIMITING

. INPUT FOR REMOTE INHIBIT AND SYNCHRONUS PWM

. THERMAL SHUTDOWN

L4964HT属于集成电路（IC） > 稳压器 - DC-DC 开关稳压器。意法半导体（ST）集团制造生产的L4964HT稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。