Datasheet > MAX16931

MAX16931

更新时间： 2024-09-15 12:28:19

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
29页	1698K
描述
2MHz, 36V, Dual Buck with Preboost and 20Î¼A Quiescent Current

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MAX16931 数据手册

EVALUATION KIT AVAILABLE

MAX16930/MAX16931

2MHz, 36V, Dual Buck with Preboost and

20µA Quiescent Current

General Description

Features

The MAX16930/MAX16931 offer two high-voltage,

synchronous step-down controllers and a step-up

preboost controller. They operate with an input voltage

supply from 2V to 42V with preboost active and can oper-

ate in drop-out condition by running at 95% duty cycle.

The devices are intended for applications with mid- to

high-power requirements that operate at a wide input

voltage range such as during automotive cold-crank or

engine stop-start conditions.

S Dual, 2MHz Step-Down Controllers

S Preboost for Operation to 2V

S 180° Out-of-Phase Operation

S 50ns Minimum On-Time Allows 3.3V Output from

Car Battery at 2.2MHz

S 20µA Operating Current

S Wide Input Supply Range from 3.5V to 36V (with-

out Preboost)

The MAX16930/MAX16931 step-down controllers oper-

ate 180N out-of-phase at frequencies up to 2.2MHz to

allow small external components, reduced output ripple,

and to guarantee no AM band interference. The switch-

ing frequency is resistor adjustable. The FSYNC input

programmability enables three frequency modes for

optimized performance: forced fixed-frequency opera-

tion, skip mode with ultra-low quiescent current (20FA),

and synchronization to an external clock. The devices

also provide a spread-spectrum option to minimize EMI

interference.

S Resistor Programmable Frequency Between

200kHz and 2.2MHz

S Q1% Output-Voltage Accuracy: 5.0V/3.3V Fixed or

Adjustable Between 1V and 10V

S Current-Mode Controllers with Forced Continuous

and Skip Modes

S Frequency Synchronization Input

S Supply Overvoltage and Undervoltage Lockout

S Overtemperature and Short-Circuit Protection

S Thermally Enhanced 40-Pin TQFN-EP Package

S -40NC to +125NC Operating Temperature

The MAX16930/MAX16931 are offered with an asynchro-

nous step-up controller. This preboost circuitry turns on

during low input voltage conditions. It is designed to pro-

vide power to step-down controller channels with input

voltages as low as 2V.

Applications

POL Applications for Automotive Power

Distributed DC Power Systems

The devices also feature a power-OK monitor and

overvoltage and undervoltage lockout. Protection

features include cycle-by-cycle current limit and thermal

shutdown.

Navigation and Radio Head Units

The devices are available in a 40-pin TQFN-EP package

and are specified for operation over the -40NC to +125NC

automotive temperature range.

Ordering Information and Selector Guide appear at end of

data sheet.

For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX16930.related

For pricing, delivery, and ordering information, please contact Maxim Direct at

1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

19-6631; Rev 1; 7/13

12 3 4 5 6 7...29

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与MAX16931相关器件

型号	品牌	获取价格	描述	数据表
MAX16932	MAXIM	获取价格	fully assembled and tested application circuit for the MAX16932 highvoltage
MAX16932	ADI	获取价格	2.2MHz、36V、双路降压器，20μA静态电流
MAX16932ATIR/V+	MAXIM	获取价格	Dual Switching Controller, Current-mode, 2420kHz Switching Freq-Max, BICMOS, TQFN-28
MAX16932EVKIT	MAXIM	获取价格	fully assembled and tested application circuit for the MAX16932 highvoltage
MAX16933	MAXIM	获取价格	fully assembled and tested application circuit for the MAX16932 highvoltage
MAX16933	ADI	获取价格	2.2MHz、36V、双路降压器，20μA静态电流
MAX16935	ADI	获取价格	具有28μA静态电流的36V、3.5A、2.2MHz降压转换器
MAX16935BAUER/V+	MAXIM	获取价格	Switching Regulator,
MAX16935BAUES/V+	MAXIM	获取价格	Switching Regulator,
MAX16935BAUES/V+T	MAXIM	获取价格	Switching Regulator,

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