AN8018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

AN8018属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由松下电器制造生产的AN8018DC-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。

■ Overview

The AN8018SA is a two-channel PWM DC-DC converter control IC that features low-voltage operation.

This IC can obtain the step-up, step-down and inverting voltages with a small number of external components.

The minimum operating voltage is as low as 1.8 V so that it can operate with two dry batteries. In addition, since it uses the 16-pin surface mounting type package with 0.65 mm pitch, it is suitable for miniaturized highly efficient potable power supply.

■ Features

• Wide operating supply voltage range (1.8 V to 14 V)

• Incorporating a high precision reference voltage circuit

(allowance: ± 2)

• Control in a wide output frequency range is possible

(20 kHz to 1 MHz).

• Built-in wideband error amplifier (single gain bandwidth 10 MHz typical)

• Built-in timer latch short-circuit protection circuit

(charge current 1.1 µA typical)

• Incorporating the under-voltage lock-out circuit (U.V.L.O.)

(circuit operation-starting voltage 1.67 V typical)

• Dead-time is variable.

• Flatness of switching current can be obtained by staggering the turn-on timing of each channel.

• Built-in unlatch function

When DT1 pin is low level, or DT2 pin is high level, independent turn-off is possible.

• Incorporating a on/off control function

(active-high control input, standby mode current: 5 µA maximum)

• Parallel operation is possible.

• Output block

• Totem pole 1 output

• Output source-current: −50 mA maximum (Constant current output with a less supply voltage fluctuation is possible by connecting an external resistor to pin 11)

• Output sink-current: +80 mA maximum

• Open-collector 1 output

• Output current: 50 mA maximum

■ Applications

• LCD displays, digital still cameras, and PDAs