Datasheet > MAX5093

MAX5093

更新时间： 2024-11-20 14:57:59

品牌	Logo	应用领域
亚德诺 - ADI		调节器
页数	文件大小	规格书
23页	1912K
描述
4V至72V输入LDO，具有boost前置调节器

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中文翻译

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MAX5093 数据手册

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MAX5092/MAX5093

4V to 72V Input LDOs with Boost Preregulator

General Description

Features

● Wide Operating Input Voltage Range: 3.5V to 72V

The MAX5092A/MAX5092B/MAX5093A/MAX5093B low-

quiescent-current, low-dropout (LDO) regulators contain

simple boost preregulators operating at a high fre-

quency. The devices seamlessly provide a preset 3.3V

(MAX5092A/MAX5093A) or 5V (MAX5092B/MAX5093B)

LDO output voltage from a cold-crank through load-dump

(3.5V to 80V) input voltage conditions. The MAX5092_/

MAX5093_ deliver up to 250mA with excellent load and

line regulation. During normal operation, when the battery

is healthy, the boost preregulator is completely turned off,

reducing quiescent current to 65μA (typ). This makes the

devices suitable for always-on power supplies.

with a 4V Startup Voltage

● LDO Output Regulates to 5V Seamlessly from an

Input Voltage of 3.5V to 72V

● Up to 250mA Output Current

● Preset 3.3V, 5V, or Externally Programmable LDO

Output Voltage from 1.5V to 9V (MAX5092_) or from

1.5V to 10V (MAX5093_)

● Preset 7V or Externally Programmable Boost

Output Voltage Up to 11V (MAX5092_) or Up to 12V

(MAX5093_)

● 65μA Quiescent Current in LDO Mode (V ≥ 8V)

The buck-boost operation achieved by this combination of

LDO and boost preregulator offers the advantage of using

a single off-the-shelf inductor in place of the multiple-

winding custom magnetics needed in typical single-ended

primary inductor converter (SEPIC) and transformer-

based flyback topologies. The high operating frequency

of the boost regulator significantly reduces component

size. The MAX5092_ integrates a blocking diode to fur-

ther reduce the external component count. The boost

preregulator output voltage is preset to 7V. Both LDO and

boost output voltages are programmable using external

resistors. The boost preregulator output voltage is adjust-

able up to 11V(MAX5092_), or up to 12V (MAX5093_).

The LDO output voltage is adjustable from 1.5V to 9V

(MAX5092_) or from 1.5V to 10V (MAX5093_).

5μA Shutdown Current

● Power-On Reset (RESET) with Programmable

Timeout Period

● Output Short-Circuit and Thermal Protection

● TQFN Package Capable of Dissipating Up to 2.7W at

+70°C

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX5092AATE+

MAX5092BATE+

MAX5093AATE+

MAX5093BATE+

-40°C to +125°C

16 TQFN-EP*

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

The devices feature a shutdown mode with 5μA (typ) shut-

down current, a HOLD input to implement a self-holding cir-

cuit, and a power-on-reset output (RESET) with an externally

programmable timeout period. Additional features include

output overload, short-circuit, and thermal protection.

Pin Conﬁguration

TOP VIEW

The MAX5092_/MAX5093_ are available in a thermally

enhanced, 16-pin 5mm x 5mm thin QFN package and

can dissipate up to 2.7W at +70°C on a multilayer PC

board (PCB).

OUT

BSFB 13

VL 14

MAX5092_/

MAX5093_

OUT_SENSE

SET

Applications

● Industrial

CT 15

PGND_LDO

RESET

Typical Operating Circuit and Selector Guide appear at end

of data sheet.

THIN QFN

(5mm x 5mm)

19-0659; Rev 2; 10/14

12 3 4 5 6 7...23

中文翻译

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与MAX5093相关器件

型号	品牌	获取价格	描述	数据表
MAX5093A	MAXIM	获取价格	fully assembled and tested surface-mount printed-circuit board
MAX5093AATE+	MAXIM	获取价格	4V to 72V Input LDOs with Boost Preregulator
MAX5093AATE+T	MAXIM	获取价格	Switching Regulator, Voltage-mode, 3A, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220
MAX5093B	MAXIM	获取价格	fully assembled and tested surface-mount printed-circuit board
MAX5093BATE+	MAXIM	获取价格	4V to 72V Input LDOs with Boost Preregulator
MAX5094	ADI	获取价格	高性能、单端、电流模式PWM控制器
MAX5094A	MAXIM	获取价格	High-Performance, Single-Ended, Current-Mode PWM Controllers
MAX5094AASA	MAXIM	获取价格	High-Performance, Single-Ended, Current-Mode PWM Controllers
MAX5094AASA+	MAXIM	获取价格	High-Performance, Single-Ended, Current-Mode PWM Controllers
MAX5094AASA+T	MAXIM	获取价格	Switching Controller, Voltage-mode, 0.02A, 1000kHz Switching Freq-Max, BICMOS, PDSO8, 0.15

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