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MAX25201

36V Automotive Low-I_Q 200kHz to 2.2MHz Synchronous Boost Controller

20µA I_Q, Multiphase Capable with Superior Gate Drive Enabling Automotive Applications

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概述

说明

The MAX25201/MAX25202 are high-performance, current-mode PWM controllers with 1.5μA (typ) shutdown current for wide input voltage range boost converters. The 4.5V to 36V input operating voltage range makes these devices ideal in automotive applications, such as front-end preboost or general-purpose boost power supply, for the first boost stage in high-power LED lighting applications or to generate audio amplifier voltages. An internal low-dropout regulator with a 5V output voltage enables the MAX25201/MAX25202 to operate directly from an automotive battery input. The input operating range can be extended to as low as 1.8V after startup.

The MAX25201/MAX25202’s switching frequency operation (up to 2.2MHz) reduces output ripple, avoids AM band interference, and allows for the use of smaller external components. The switching frequency is resistor adjustable from 220kHz to 2.2MHz. Alternatively, the frequency can be synchronized to an external clock. A spread- spectrum option is available to improve system EMI performance. For high-current applications the dual-phase MAX25202 is available. The MAX25202 operates at a fixed 400kHz switching frequency and can be synchronized to an external clock.

The controllers feature a power-OK monitor and undervoltage lockout. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX25201/MAX25202 operate over the -40°C to +125°C automotive temperature range.

关键特性

Meets Stringent OEM Module Power Consumption and Performance Specifications

20µA Quiescent Current in Skip Mode
±1.5% FB Voltage Accuracy
Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V

Enables Crank-Ready Designs

Operates Down to 1.8V After Startup
Wide Input Supply Range from 4.5V to 36V

EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range

Spread-Spectrum Option
Frequency-Synchronization Input
Resistor-Programmable Frequency Between 200kHz and 2.2MHz

Integration and Thermally Enhanced Packages Save Board Space and Cost

Current-Mode Controllers with Forced-Continuous and Skip Modes
Thermally Enhanced 16-Pin TQFN-EP Package

Protection Features Improve System Reliability

Supply Undervoltage Lockout
Overtemperature and Short-Circuit Protection

应用

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信息娱乐系统

参数规格

请查看具体的参数规格 Step-Up Switching Regulators (101)

Part Number

V_IN
(V)

V_OUT1
(V)

Preset V_OUT
(V)

Output Adjust. Method

Switch Type

Power Good Signal

Synchronous Switching

I_CC
(mA)

Shutdown Mode Supply Current
(µA)

DC-DC Outputs

Oper. Freq.
(kHz)

Design Tools

Package/Pins

min

max

min

max

typ

max

MAX25200 NEW!

3.3

Resistor

External

Yes

0.02

3.5

210
250
300
350
400
480
500
600
625
640
1000
1200
1400
2000
2100
2200

EE-Sim

TQFN-CU/16

MAX25201 NEW!

Yes

TQFN-CU/16

Pricing Notes:

价格仅供参考，用于同类产品的比较。所提供报价为美元，需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题，请参考：价格与供货网站或与指定代理商联系。

设计资源

MAX25201EVKIT: Evaluation Kit for the MAX25200/MAX25201

质量和环境数据

申请可靠性报告: MAX25201
无铅封装的锡（Sn）晶须报告

工具和模型

EE-Sim: MAX25201 设计和仿真

质量与环境

型号	生产流程	工艺	样本量	不合格	FIT @ 25°C	FIT @ 55°C	Material Composition

备注：通过技术手段对故障率进行汇总，并映射到相关的材料部件号。故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

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