LTC3772

PRODUCTION

Micropower No RSENSE Constant Frequency Step-Down DC/DC Controller

Part Models
4
1ku List Price
Starting From $2.27
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Part Details

  • No Current Sense Resistor Required
  • 40µA No-Load Quiescent Current
  • High Output Currents Easily Achieved
  • Internal Soft-Start Ramps VOUT
  • Wide VIN Range: 2.75V to 9.8V
  • Low Dropout: 100% Duty Cycle
  • Constant Frequency 550kHz Operation
  • Low Ripple Burst Mode® Operation at Light Load
  • Output Voltage as Low as 0.8V
  • ±1.5% Voltage Reference Accuracy
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Only 8µA Supply Current in Shutdown
  • Low Profile 8-Lead SOT-23 (1mm) and (3mm × 2mm) DFN (0.75mm) Packages
LTC3772
Micropower No RSENSE Constant Frequency Step-Down DC/DC Controller
550kHz Micropower Step-Down DC/DC Converter Efficiency and Power Loss vs Load Current Product Package 1 Product Package 2
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Documentation

Data Sheet

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

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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
Dual-Supply Monitors 1
LTC2960 RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Multiple Output Buck Regulators 1
LTC3880 RECOMMENDED FOR NEW DESIGNS Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
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Tools & Simulations

LTspice

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

eval board
DC836A

LTC3772EDDB Demo Board | VIN = 2.75V to 8V, VOUT = 1.8V/2.5V/3.3V @ 2A

Product Details

Demonstration circuit 836 is a No RSENSE constant frequency step-down DC/DC converter featuring the LTC3772 Burst-Mode capable, nonsynchronous controller in a 3mm × 2mm DFN package. The demo board has an input voltage range of 2.75V to 8V and provides 2A at one of the three jumper-selectable output voltages: 1.8V, 2.5V or 3.3V.

DC836A
LTC3772EDDB Demo Board | VIN = 2.75V to 8V, VOUT = 1.8V/2.5V/3.3V @ 2A
DC836A - Schematic

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