›

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 I_Q

Data Sheet

Please check latest availability status for a specific part variant.

Overview

Description

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.

MAX20002, MAX20003: Typical Application Circuit/Block Diagram

Enlarge+

Key Features

Synchronous DC-DC Converter with Integrated FETs
- 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 V_IN Range of 3.5V to 36V
- 42V Load-Dump Protection
- 99% Duty-Cycle Operation with Low Dropout
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
- Fast and Accurate Overvoltage Protection Enables Fast Recovery from Automotive Transients (MAX20002C/D/MAX20003C/D)

Applications/Uses

Distributed DC Power Systems
Navigation and Radio Head Units
Point-of-Load Applications in Automotive

Parametric Specs

Part Number

V_IN
(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)

Design Tools

Package/Pins

Budgetary
Price

min

max

min

max

See Notes

MAX20002

3.5

3.3

Resistor

Internal

Yes

220

2200

EE-Sim

TQFN-CU/20

$2.62 @1k

MAX20002C

3.3

4.2

Preset

Resistor

SOIC(N)/8

MAX20003

3.3

Resistor

EE-Sim

TQFN-CU/20

MAX20003C

3.3

4.2

Preset

Resistor

SOIC(N)/8

See All Step-Down Switching Regulators (367)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

MAX20003EVKIT: Evaluation Kit for the MAX20002 and MAX20003

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

Order

Status:

Package:

Temperature:

Related Resources

New Products

MAX15158Z
High-Voltage Multiphase Boost Controller

Wide Operating Range
Integration Reduces Design Footprint
Robust Fault Protection Improves Quality and Reliability

MAX20079
Automotive 36V 3.5A Buck Converter with 3.5μA I_Q

Synchronous DC-DC Converter with Integrated FETs
Small Solution Size Saves Space
PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX20026, MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

High-Integration Shrinks Solution Size
Performance Designed for Automotive Point-of-Load Regulation
Low-Noise Features Improve EMI Performance

MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

High-Integration Shrinks Solution Size
Performance Designed for Automotive Point-of-Load Regulation
Low-Noise Features Improve EMI Performance

MAX20801
MPP Tracking DC-DC Converter

Performs MPPT on 20-24 Series Connected PV Cells
Fast MPPT Reacts Quickly to Changing Conditions
Integrated Voltage-Limiting Clamps Output Voltage

MAX20800
MPP Tracking DC-DC Converter

Performs MPPT on 20-24 Series Connected PV Cells
Fast MPPT Reacts Quickly to Changing Conditions
Integrated Voltage-Limiting Clamps Output Voltage

MAX20059
72V, 1A, Automotive Synchronous Step-Down DC-DC Converter

Synchronous DC-DC Converters with Integrated FETs
Flexibility
Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

MAX20058
60V, 1A, Automotive Synchronous Step-Down DC-DC Converter

Synchronous DC-DC Converters with Integrated FETs
Flexibility
Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

MAXM15067
4.5V to 60V, 300mA Step-Down uSLIC Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM15065
4.5V to 60V, 300mA Step-Down uSLIC Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM15066
4.5V to 60V, 300mA Step-Down uSLIC Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM17904
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM17905
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM17906
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

Easy to Use
High Efficiency
Flexible Design

MAX20048
Automotive 40V, 55µA I_Q, 2.2MHz, H-Bridge Buck-Boost Controller

Meets Stringent Automotive Quality and Reliability Requirements
Efficient Solution in a Small Solutions Size
Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

MAX20010C
Automotive Single 6A Step-Down Converters

Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
High-Precision Voltage Regulator for Applications Processors
Low-Noise Feature Reduces EMI

MAX20010D
Automotive Single 6A Step-Down Converters

Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
High-Precision Voltage Regulator for Applications Processors
Low-Noise Feature Reduces EMI

MAX20039
Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

Meets Stringent Automotive Quality and Reliability Requirements
Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
High Switching Frequency Allows Use of Small External Components

MAX20040
Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

Meets Stringent Automotive Quality and Reliability Requirements
Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
High Switching Frequency Allows Use of Small External Components

MAX20029B
Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters