Datasheet > MAX20048

MAX20048

更新时间： 2023-12-20 18:46:33

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
22页	1584K
描述
汽车应用、40V、55μA IQ、2.2MHz、H桥、升/降压控制器

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中文翻译

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MAX20048 数据手册

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MAX20048

Automotive 40V, 55μA I , 2.2MHz, H-Bridge

Buck-Boost Controller

General Description

Benefits and Features

The MAX20048 is a current-mode buck-boost controller.

The device operates with input voltages from 4.5V to 36V

while using only 55μA quiescent current at no load. Once

the startup conditions are satisfied, the device can oper-

ate over an extended input voltage range of 2V to 36V.

The switching frequency is resistor programmable from

220kHz to 2.2MHz and can be synchronized to an exter-

nal clock.

● Meets Stringent Automotive Quality and Reliability

Requirements

• Operating V Range: 2V to 36V Allows Operation

In Cold-Crank Conditions

• Tolerates Input Transients to 40V

• EN Pin Compatible from +3.3V to +40V

• -40°C to +125°C Automotive Temperature Range

• AEQ-100 Qualified

The device output voltage is available as 5V fixed or ad-

justable from 4V to 25V. The wide input voltage range,

along with its ability to maintain constant output voltage

during battery transients, makes the devices ideal for au-

tomotive applications. In light-load applications, a logic in-

put (FSYNC) allows the devices to operate either in skip

mode for reduced current consumption, or fixed- frequen-

cy, forced-PWM mode to eliminate frequency variation

and help minimize EMI. Protection features include cy-

cle-by-cycle current limit followed by hiccup during sus-

tained overloads, input under-voltage lockout (UVLO), out-

put overvoltage protection and thermal shut- down with

automatic recovery.

● Efficient Solution in a Small Solutions Size

• Skip Mode for Efficient Low Power Operation

• Fixed 5V Output Voltage and Adjustable 4V to 25V

• High Switching Frequency Allows Use of Small

External Components

• Small 4mm x 4mm 24-Pin SWTQFN Package

● Low Quiescent Current Helps Designers Meet

Stringent OEM Current Requirements

• 55μA Quiescent Current When in Stand-By Mode

• 10μA (max) Quiescent Current in Shutdown

● EMI Mitigation to meet CISP25 Class 5 Requirements

• 220kHz to 2.2MHz Operating Frequency

• Fixed-Frequency PWM Mode

The MAX20048 is available in a small 4mm x 4mm 24-pin

TQFN-EP SW package.

• External Frequency Synchronization or SYNC OUT

Capability (Selectable by OTP Option)

• Spread Spectrum Can Be Enabled or Disabled for

the IC by OTP Option

Applications

● Infotainment Systems

● Body Electronics

● Start-Stop Systems

● Point of Load Power Supply

● USB Power Delivery

19-100306; Rev 3; 2/21

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...22

中文翻译

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与MAX20048相关器件

型号	品牌	获取价格	描述	数据表
MAX20049	ADI	获取价格	灵活的2.2MHz、500mA、微型、双通道、Buck转换器，带有LDO，适用于汽车摄像机
MAX20050	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20050	ADI	获取价格	2A、同步、Buck LED驱动器，集成MOSFET
MAX20050ATC/V+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20050ATC+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20050CATC/V+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20051	MAXIM	获取价格	MAX20051 Evaluation Kit
MAX20051	ADI	获取价格	2A、同步、Buck LED驱动器，集成MOSFET
MAX20051AAUD/V+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20051AAUD+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs

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