LTC3620

PRODUCTION

Ultralow Power 15mA Synchronous Step-Down Switching Regulator

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.35

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Part Details

High Efficiency: Up to 95%
Maximum Current Output: 15mA
Externally Programmable Frequency Clamp with Internal 50kHz Default Minimizes Audio Noise
18μA I_Q Current
2.9V to 5.5V Input Voltage Range
Low-Battery Detection
0.6V Reference Allows Low Output Voltages
Shutdown Mode Draws <1μA Supply Current
2.8V Undervoltage Lockout
Unique Low Noise Control Architecture
Internal Power MOSFETs
No Schottky Diodes Required
Internal Soft-Start
Tiny 2mm × 2mm 8-Lead DFN Package

Part Models: 4
1ku List Price: Starting From $2.35

Documentation

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
LTC3620EDC#TRMPBF	8-Lead DFN (2mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3620EDC#TRPBF	8-Lead DFN (2mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3620EDC-1#TRMPBF	8-Lead DFN (2mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3620EDC-1#TRPBF	8-Lead DFN (2mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital Power System Managers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Multiple Output Buck Regulators 1
LTC3880	RECOMMENDED FOR NEW DESIGNS	Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management

Tools & Simulations

LTspice 1

LTC3620 Demo Circuit - µPower 15mA Synchronous Step-Down Switching Regulator (2.8-5.5V to 1.8V @ 15mA)

Models for the following parts are available in LTspice:

LTC3620
LTC3620-1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTC3620EDC Demo Board | 2.9V ≤ VIN ≤ 5.5V, VOUT = 1.1V/1.2V/1.8V @ 15mA

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Product Details

Demonstration circuit 1460A is a high efficiency step-down converter featuring the LTC3620EDC. Its input voltage ranges from 2.9V to 5.5V, and it provides up to 15mA of load current at a jumper-selectable output voltages of 1.1V, 1.2V or 1.8V.

Resources

DC1460A - Schematic
10/21/2009

DC1460A - Demo Manual
10/21/2009

DC1460A - Design Files
10/21/2009

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