Part Number: MAX20003

Function: 2A/3A Fully Integrated Step-Down Converter

Package: TQFN 20 Pin Type ( 5mm x 5mm )

Manufacturer: Maxim Integrated

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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.

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Benefits and Features:

1. Synchronous DC-DC Converter with Integrated FETs

• MAX20002 = 2A
• MAX20003 = 3A
• 15µA Quiescent Current When in Standby Mode

2. 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

 

Applications:

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

 

MAX20003 PDF Datasheet

Similar features and reference parts

Part Number: GC7137A, GC7137AD

Function: LED display A / D converter

Package: SDIP24, SOP24 or SSOP24 Type

Manufacturer: ETC

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Description

GC7137AD is a high-performance, low-cost 3.5-digit A/D converter circuit. It contains seven-segment decoder, scan display driver, reference source and clock system, which can directly drive LED to display characters.

GC7137A combines high precision, versatility and low-cost applications together. It has an automatic zero calibration function of less than 10µV, a zero drift of less than 1µV/℃, an input current of less than 10pA, and a polarity conversion error of less than one digit. . The GC7137’s integrated differential input and differential reference works well in a variety of systems. It can be widely used in various single-chip measuring units and display heads.

GC7137A is designed according to the requirements of single power supply and low voltage power supply. When the single power supply is 5V power supply, all A/D conversion functions and parameter indicators can be realized. In order to realize low voltage operation, a 2.4V precision bandgap reference source is designed in the chip , ensuring symmetrical power supply and excellent temperature characteristics at low voltage. The choice of single/dual power supply is especially beneficial to the user’s application in different reference potential situations.

GC7137A can be used to assemble various digital instruments or monitoring instruments in CNC systems, and is widely used in the measurement of various physical quantities such as voltage, current, temperature, and pressure.

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Features:

1. When zero-level input is guaranteed, the readings of each range are all zero.
2. Chip built-in frequency calibrated clock oscillator
3. True differential input and differential reference source
4. Single power supply 5V or external positive and negative dual power supply
5. Very low noise (less than 15µVp-p)
6. Display scan driver, no external components required
7. Low power consumption (typical value less than 10mW)
8. Built-in precision bandgap reference source

GC7137A PDF Datasheet