AN8018

更新时间： 2024-11-05 22:47:51

品牌	Logo	应用领域
松下 - PANASONIC		转换器
页数	文件大小	规格书
26页	267K
描述
1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC

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AN8018 数据手册

Voltage Regulators

AN8018SA

1.8-volt 2-channel step-up, step-down,

or inverting DC-DC converter control IC

Unit: mm

■ Overview

The AN8018SA is a two-channel PWM DC-DC con-

verter control IC that features low-voltage operation.

This IC can obtain the step-up, step-down and invert-

ing 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.

5.0±0.2

(1.0)

0° to 10°

0.5±0.2

0.65

0.22 −⁺⁰0^..¹0⁰5

(0.225)

Seating plane

■ Features

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

• Incorporating a high precision reference voltage circuit

(allowance: ± 2%)

SSOP016-P-0225A

• 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

12 3 4 5 6 7...26

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