ADP5040集成電路（IC）的線性穩(wěn)壓器控制器規(guī)格書PDF中文資料

ADP5040屬于集成電路（IC）的線性穩(wěn)壓器控制器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADP5040穩(wěn)壓器 - 線性 + 開關(guān)此產(chǎn)品族中的產(chǎn)品用于構(gòu)建執(zhí)行 DC-DC 轉(zhuǎn)換或電壓調(diào)節(jié)功能的電路，采用的是開關(guān)模式和線性穩(wěn)壓器功能的組合。雖然具體的拓?fù)涓鞑幌嗤?，但此類產(chǎn)品的主要目的是將開關(guān)模式技術(shù)的效率優(yōu)勢與線性穩(wěn)壓技術(shù)的低噪聲特性結(jié)合在一起。

GENERAL DESCRIPTION

The ADP5040 combines one high performance buck regulator and two low dropout regulators (LDO) in a small 20-lead LFCSP to meet demanding performance and board space requirements.

The high switching frequency of the buck regulator enables the use of tiny multilayer external components and minimizes board space.

FEATURES

Input voltage range: 2.3 V to 5.5 V

One 1.2 A buck regulator

Two 300 mA LDOs

20-lead, 4 mm × 4 mm LFCSP package

Overcurrent and thermal protection

Soft start

Undervoltage lockout

Buck key specifications

Output voltage range: 0.8 V to 3.8 V

Current mode topology for excellent transient response

3 MHz operating frequency

Peak efficiency up to 96

Uses tiny multilayer inductors and capacitors

Mode pin selects forced PWM or auto PWM/PSM modes

100 duty cycle low dropout mode

LDOs key specifications

Output voltage range: 0.8 V to 5.2 V

Low VIN from 1.7 V to 5.5 V

Stable with 2.2 μF ceramic output capacitors

High PSRR

Low output noise

Low dropout voltage

?40°C to +125°C junction temperature range