MAX20002：36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15µA Operating Current

2A/3A Automotive Synchronous Step-Down Converter with Low IQ

The MAX20002/MAX20003 are small, synchronous buck converters with integrated high-side and low-side MOSFETs. Each device is designed to deliver up to 2A/3A with input voltages from 3.5V to 36V, while using only 15µA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 98% duty cycle, making them ideal for automotive applications. The devices offer fixed output voltages of 5V/3.3V, along with the ability to program the output voltage between 1V to 10V. Frequency can be programmed using a resistor to ground on the FOSC pin from 220kHz to 2.2MHz. The devices offer a forced fixed-frequency mode and skip mode with ultra-low quiescent current of 15µA. They have a pin that can be programmed to turn on/off the spread spectrum, further helping systems designers with better EMC management. The MAX20002/MAX20003 are available in a small 5mm x 5mm 20-pin TQFN package with exposed pad and use very few external components.

关键特性

Synchronous DC-DC Converter with Integrated FETs Improves Efficiency and Eases Design
- MAX20002 = 2A
- MAX20003 = 3A
- 15µA Quiescent Current When in Standby Mode
Small Solution Size Saves Space
- 220kHz to 2.2MHz Adjustable Frequency
- Programmable 1V to 10V Output for the Buck or Fixed 5V/3.3V Options Available
- Fixed 8ms Internal Soft-Start
- Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V) or Externally Resistor Adjustable (1V to 10V) with ±1% FB Accuracy
PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
Protection Features and Operating Range Ideal for Automotive Applications
- Operating VIN Range of 3.5V to 36V
- 42V Load-Dump Protection
- 99% Duty-Cycle Operation with Low Dropout
- Spread-Spectrum Control with a Pin Reduces EMI
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
- Fast and Accurate Overvoltage Protection Enables Fast Recovery from Automotive Transients (MAX20002C/MAX20003C)

MAX20002,MAX20003:Typical Application Circuit/Block Diagram

应用

DC动力系统分配
导航及无线电头单元

数据手册DataSheet

语言	下载文件	备注
英文	MAX20002-MAX20003.pdf	Rev 8; 09/2016

关键参数

Part Number	V_IN (V)	V_IN (V)	V_OUT1 (V)	V_OUT1 (V)	Preset V_OUT (V)	Output Adjust. Method	I_OUT1 (A)	Switch Type	Synchronous Switching	Power Good Signal	DC-DC Outputs	Oper. Freq. (kHz)	Package/Pins	Budgetary Price
Part Number	min	max	min	max	Preset V_OUT (V)	Output Adjust. Method	max	Switch Type	Synchronous Switching	Power Good Signal	DC-DC Outputs	Oper. Freq. (kHz)	Package/Pins	See Notes
MAX20002	3.5	36	1	10	3.3 5	Resistor	2	Internal	Yes	Yes	1	220 2200	THIN QFN/20	$2.62 @1k
MAX20002C					3.3 4.2 5	Preset Resistor	2						THIN QFN/20
MAX20003					3.3 5	Resistor	3						THIN QFN/20
MAX20003C					3.3 4.2 5	Preset Resistor	3						THIN QFN/20

开发工具

MAX20003EVKIT

订购型号

型号	状况	封装	温度	RoHS/无铅
MAX20002ATPA/V+	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅
MAX20002ATPA/V+T	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅
MAX20002ATPB/V+	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅
MAX20002ATPB/V+T	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅
MAX20002CATPA/V+	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅
MAX20002CATPA/V+T	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅
MAX20002CATPB/V+	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅
MAX20002CATPB/V+T	生产中	THIN QFN,；20引脚；TQFN-C；	-40°C至+125°C	RoHS/无铅：无铅

MAX20002-MAX20003.pdf MAX20003

Typical Application Circuit MAX20003