L5994集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

L5994属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由意法半导体集团制造生产的L5994DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。

DESCRIPTION

The device provides a dual PWM controller and a linear driver controller that can support the complete power management in mobile equipment with high efficiency.

FEATURE

■ DUAL PWM CONTROLLERS ADJUSTABLE

1.9V to 5.3V(Section1)

1.6V to 3.5V(Section2)

■ AUXILIARY DRIVER FOR LINEAR REGULATOR

■ CURRENT MODE CONTROL USING A LOW SENSE RESISTOR

■ DUAL SYNC RECTIFIERS DRIVERS

■ ONE SHOT FEATURE (L5994A only)

■ 96 EFFICIENCY ACHIEVABLE

■ 50µA@12V STAND BY CONSUMPTION

■ 4.75V TO 25V OPERATING SUPPLY VOLTAGE

■ EXCELLENT LOAD TRANSIENT RESPONSE

■ PULSE SKIPPING FUNCTION

■ OUTPUT UNDER VOLTAGE SHUTDOWN

■ ADAPTATIVE ANTI SHOOT-THROUGH CONTROL

■ OVER/UNDER VOLTAGE DETECTION

■ POWER GOOD SIGNALS

■ SEPARATED DISABLE

■ THERMAL SHUTDOWN

APPLICATIONS

■ NOTEBOOK AND SUB NOTEBOOK COMPUTERS

■ 1.8V AND 2.5V I/O SUPPLY

■ WORDPAD

■ INTERNET APPLIANCE