MAX1692
PRODUCTIONLow-Noise, 5.5V Input, PWM Step-Down Regulator
Tiny Switcher Delivers 600mA and 10x Better Performance Than LDO
- Part Models
- 2
- 1ku List Price
- Starting From $4.83
Overview
- +2.7V to +5.5V Input Range
- Adjustable Output from 1.25V to VIN
- 600mA Guaranteed Output Current
- 95% Efficiency
- No Schottky Diode Required
- 85µA Quiescent Current
- 100% Duty Cycle in Dropout
- 750kHz Fixed-Frequency PWM Operation
- Synchronizable Switching Frequency
- Accurate Reference: 1.25V (±1.2%)
- Small 10-Pin µMAX Package
The MAX1692 is a low-noise, pulse-width-modulated (PWM), DC-DC step-down converter. It powers logic and transmitters in small wireless systems such as cellular phones, communicating PDAs, and handy-terminals. The device features an internal synchronous rectifier for high efficiency; it requires no external Schottky diode. Excellent noise characteristics and fixed-frequency operation provide easy post-filtering. The MAX1692 is ideally suited for Li-Ion battery applications. It is also useful for +3V or +5V fixed input applications.
The device operates in one of four modes. Forced PWM mode operates at a fixed frequency regardless of the load. Synchronizable PWM mode allows an external switching frequency to control and minimize harmonics. Idle Mode™ (PWM/PFM) extends battery life by switching to a PFM pulse-skipping mode during light loads. Shutdown mode places the device in standby, reducing quiescent supply current to under 0.1µA.
The MAX1692 can deliver over 600mA. The output voltage can be adjusted from 1.25V to VIN with the input range of +2.7V to +5.5V. Other features of the MAX1692 include high efficiency, low dropout voltage, and a 1.2%-accurate 1.25V reference. It is available in a space-saving 10-pin µMAX package with a height of only 1.11mm.
Applications
- Battery-Operated Devices (1 Li+ or 3 NiMH/NiCd)
- Cell Phones
- Cordless Phones
- CPU I/O Supplies
- Notebook Chipset Supplies
- PDAs and Handy-Terminals
Documentation
Data Sheet 1
Design Note 2
Technical Articles 5
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX1692EUB+ | MINI_SO | ||
| MAX1692EUB+T | MINI_SO |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 3, 2023 - 2361NA WAFER FAB |
||
| MAX1692EUB+ | PRODUCTION | |
| MAX1692EUB+T | PRODUCTION | |
|
Apr 20, 2026 - 2571B PIN/ERRATA |
||
| MAX1692EUB+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareEvaluation Kits
Evaluation Kit for the MAX1692
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