MAX1920

PRODUCTION

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23

Data Sheet (Rev. 3) Product Selection Table

Part Models: 4
1ku List Price: Starting From $1.78

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Part Details

400mA Guaranteed Output Current

Internal Synchronous Rectifier for >90% Efficiency

Tiny 6-Pin SOT23 Package

Available in 6-Pin TDFN Package (MAX1920)

Up to 1.2MHz Switching Frequency for Small External Components

50µA Quiescent Supply Current

0.1µA Logic-Controlled Shutdown

2V to 5.5V Input Range

Fixed 1.5V, 1.8V, 2.5V, 3V, and 3.3V Output Voltages (MAX1921)

Adjustable Output Voltage (MAX1920)

±1.5% Initial Accuracy

Soft-Start Limits Startup Current

Part Models: 4
1ku List Price: Starting From $1.78

Documentation

Data Sheet 1

MAX1920-MAX1921: Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 Data Sheet (Rev.3) 09/20/2005

Reliability Data 1

MAX1920 Reliability Data 01/12/2023

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
MAX1920ETT+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1920ETT+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1920EUT+	Small-Outline Transistor Package	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1920EUT+T	Small-Outline Transistor Package	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 20, 2016 - 1612 ASSEMBLY
		pcn_1612
MAX1920ETT+T	PRODUCTION	pcn_1612
Nov 1, 2021 - 2209 ASSEMBLY
		pcn_2209
MAX1920EUT+	PRODUCTION
MAX1920EUT+T	PRODUCTION
Feb 5, 2015 - 1370_CANCELLATION ASSEMBLY
		pcn_1370_cancellation
MAX1920EUT+	PRODUCTION	pcn_1370_cancellation

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX1920, MAX1921

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Features and Benefits

2V to 5.5V Input Voltage Range
Output Voltage
- 1.8V Fixed Output Voltage (MAX1921EUT18-T)
- Adjustable Output Voltage (MAX1920EUT-T)
- Other Fixed-Output Voltages (MAX1921EUT_ _-T)
Output Current
- Guaranteed 400mA at >2.5V Input Voltage
IC Shutdown Current
- 0.1µA (typ)
Surface-Mount Components
Fully Assembled and Tested

Product Details

The MAX1921 evaluation kit (EV kit) provides a fixed 1.8V output voltage from a 2V to 5.5V input source and delivers up to 400mA output current. The MAX1921 is a step-down switching regulator with an internal power switch and synchronous rectifier in a tiny SOT23 package.

The MAX1921 EV kit is a fully assembled and tested surface-mount circuit board. The MAX1921 EV kit can also be used to evaluate other fixed-output voltage versions of the MAX1921 or the MAX1920, which is a step-down switching regulator with an adjustable output voltage. Additional pads on the board are provided for external feedback resistors to set different output voltages, 1.25V to V_IN.

Applications

Battery-Powered Applications
CDMA Power Amplifier Supply
Next-Generation Wireless handsets
PDAs, Palmtops, and Handy Terminals

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