ADP2360

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50 mA, 60 V, High Efficiency Buck Regulator

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Overview

  • Input voltage range: 4.5 V to 60 V
  • Adjustable output voltage range: 0.8 V to VIN
  • Factory programmable fixed output voltage options of 3.3 V and 5.0 V
  • Continuous output current up to 50 mA
  • Adjustable peak current limit up to 140 mA
  • Pulse frequency modulation (PFM) control
  • Very high efficiency
    • 90% at VIN = 9 V, VOUT = 3.3 V, IOUT = 10 mA
    • 87% at VIN = 9 V, VOUT = 3.3 V, IOUT = 1 mA
  • Low shutdown current: <4 µA
  • Low quiescent current: 12 µA in sleep mode
  • 100% duty cycle operation
  • Undervoltage lockout (UVLO)
  • No external compensation required
  • Enable input with precision thresholds
  • Programmable soft start
  • Power-good output
  • Thermal shutdown (TSD) protection
  • 8-lead LFCSP package

The ADP2360 is a high efficiency, high input voltage, discontinuous conduction mode (DCM) synchronous, step-down, dc-to-dc switching regulator. The ADP2360 operates with a wide input voltage range from 4.5 V to 60 V and can source up to 50 mA continuous output current, making it ideal for regulating power from a variety of voltage sources in space-constrained applications. The ADP2360 is available with an adjustable output (0.8 V to VIN) or in 3.3 V and 5.0 V factory-programmable fixed output voltage models.

The ADP2360 uses a single-pulse PFM architecture with adjustable IPEAK control to minimize the input and output ripple. The adjustable IPEAK current limit allows the ADP2360 to optimize the efficiency for the application operating conditions and minimize the compatible inductor size.

The ADP2360 further offers a power-good (PG) pin to indicate when the output voltage is good. Other key features include 100% duty cycle operation, precision enable control, external soft start control, undervoltage lockout, and thermal shutdown.

The ADP2360 requires no external compensation and the solution for the fixed output voltage options requires a minimum of three external components. The ADP2360 is available in a 3 mm × 3 mm, 8-lead LFCSP package with an operating junction temperature range from −40°C to +125°C.

Applications

  • 4 mA to 20 mA loop powered systems
  • HART modems
  • Building automation
  • Distributed power systems
  • Industrial control supplies
  • Other high VIN, low IOUT systems

ADP2360
50 mA, 60 V, High Efficiency Buck Regulator
ADP2360 Circuit Diagram ADP2360 Pin Configuration
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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • ADP2360
  • ADP2360-3.3
  • ADP2360-5.0
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
EVAL-ADP2360

ADP2360 Evaluation Board

Features and Benefits

  • Input voltage range: 4.5 V to 60 V 
  • Output voltage: 3.3 V 
  • Power good output

Product Details

The ADP2360CP-EVALZ evaluation board demonstrates the functionality of the ADP2360 dc-to-dc converter.


Use this evaluation board to evaluate simple device measurements, such as line regulation, load regulation, and efficiency. The evaluation board provides a power-good output and other features, such as soft start time. The maximum inductor current can be modified by changing component values.


Full specifications for the ADP2360 dc-to-dc converter are available in the product data sheet, which should be consulted in conjunction with UG-930 when working with the evaluation board.


EVAL-ADP2360
ADP2360 Evaluation Board
EVALZ-ADP2360CP-Angle (1)-web EVALZ-ADP2360CP-Angle (2)-web EVALZ-ADP2360CP-Bottom-web EVALZ-ADP2360CP-Top-web

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