ADP2300

PRODUCTION

1.2 A, 20 V, 700 kHz Nonsynchronous Step-down Switching Regulator

Data Sheet (Rev. C) Product Selection Table
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Overview

  • High efficiency, up to 91%
  • 1.2 A maximum load current
  • ±2% output accuracy over temperature range
  • 700kHz (ADP2300) or 1.4MHz (ADP2301) switching frequency options
  • Wide input voltage range: 3.0 V to 20 V
  • Current-mode control architecture
  • Output voltage from 0.8 V to 0.85×VIN
  • See datasheet for additional features

The ADP2300 / ADP2301 are compact, constant-frequency, current-mode, step-down dc-to-dc regulators with integrated power MOSFET. The ADP2300 / ADP2301 devices run from any input voltage from 3.0 V up to 20 V, making them suitable for a wide range of applications. A precise, low voltage internal reference makes these devices ideal for generating a regulated output voltage as low as 0.8 V, with ±2% accuracy, for up to 1.2 A load current.

There are two frequency options: the ADP2300 runs at 700 kHz and the ADP2301 runs at 1.4 MHz. These options allow users to make decisions based on the trade-off between efficiency and the size of the total solution. Current-mode control provides fast and stable line and load transient performance. Each ADP2300 / ADP2301 device includes an internal soft start to prevent inrush current at power up. Other key safety features include short-circuit protection, thermal shutdown (TSD) and input undervoltage lockout (UVLO). Precision enable pin threshold voltage allows ADP2300 / ADP2301 to be easily sequenced from other input/output supplies, or the enable pin can be used as a programmable UVLO input by using resistive divider.

The ADP2300 / ADP2301 are available in a 6-lead TSOT package and are rated for the −40°C to +125°C junction temperature range.

APPLICATIONS

  • LDO replacement for digital load applications
  • Intermediate power rail conversion
  • Communications and networking
  • Industrial and instrumentation
  • Healthcare and Medical
  • Consumer
ADP2300
1.2 A, 20 V, 700 kHz Nonsynchronous Step-down Switching Regulator
ADP2300/ADP2301 Functional Block Diagram
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Documentation

Data Sheet 1

User Guide 1

Application Note 3

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Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • ADP2300

ADP230x Buck Regulator Design Tool

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

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ADP230x Inverting Buck-Boost Regulator Design Tool

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

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SIMPLIS Models 1

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-ADP2300

ADP2300 Evaluation Board

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Product Details

The ADP2300/ADP2301 are compact, constant-frequency, current-mode, step-down dc-to-dc regulators with an integrated power MOSFET. The ADP2300/ADP2301 evaluation boards are complete solutions that allow the user to evaluate the performance of the regulators. There are two frequency options available: the ADP2300 runs at 700 kHz, and the ADP2301 runs at 1.4 MHz. These options allow the user to make design decisions based on the trade-off between efficiency and the size of the total solution.


The ADP2300/ADP2301 provide accurate (±2%) output regulation for load currents up to 1.2 A. Current-mode control provides fast and stable line and load transient performance. The precision, EN pin, threshold voltage allows the ADP2300/ADP2301 to be sequenced from other input/output supplies. The EN pin can also be used as a programmable UVLO input by using a resistive divider.
EVAL-ADP2300
ADP2300 Evaluation Board

Reference Designs

Figure 1. High Performance Conductivity Measurement System
Figure 1. High Performance Conductivity Measurement System
CN0359 - Top View
CN0359 - Bottom View
CN0359 Circuits from the lab

Fully Automatic High Performance Conductivity Measurement System

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Features and Benefits

  • Conductivity Range of 0.1 μS to 10 S
  • Automatic Measurement Ranging
  • 2- or 4-wire Conductivity Probe Compatible
  • External Temperature Compensation
  • Standalone Operation and Control
Simplified Circuit Diagram
Simplified Circuit Diagram
CN0535 Circuits from the lab

High Performance, Alias Free Measurement Platform for Flexible Data Acquisition System

View Detailed Reference Design

Features and Benefits

  • Alias free Measurement System
  • Optimized for AC & DC Performance
  • Wide Analog Input (+/-12V)
  • FMC Compatible Form Factor

Part Used

Resources

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Functional Block Diagram of Universal Power Supply Module
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Features and Benefits

  • Precision 16-bit voltage source
  • 8 Channels Self contained
  • +12V to +/- 5V supply
CN0359
Fully Automatic High Performance Conductivity Measurement System
Figure 1. High Performance Conductivity Measurement System
CN0359 - Top View
CN0359 - Bottom View
CN0535
High Performance, Alias Free Measurement Platform for Flexible Data Acquisition System
Simplified Circuit Diagram
CN0190
Robust, Multivoltage, High Efficiency, 25 W Universal Power Supply Module with 6 V to 14 V Input
Functional Block Diagram of Universal Power Supply Module
Photograph of EVAL-CN0190-EB1Z Universal Power Supply
CN0183
Precision 16-Bit, Bipolar Output Voltage Source with +12 V to ±5 V Supply
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