Key facts
- Brand
- Analog Devices
- Model
- ADP2504
- Documents
- 3
- Languages
- EN · ZH
- Last added
- 2012-08-02
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Analog Devices AN-1149 Application Note Buck/Boost Regulators
This document is an application note titled "How to Apply DC-to-DC Step-Down/Step-Up (Buck/Boost) Regulators" published by Analog Devices. It focuses on the design and application of buck/boost converters, which can generate output voltages less than, greater than, or equal to the input voltage. The text describes the internal topology of these regulators, which contain four switches, two capacitors, and an inductor, and explains how they operate in buck mode, boost mode, and buck/boost mode to maintain regulation across varying input voltages.
Read onlineAnalog Devices ADP2504 specifications
| Input Voltage Range | 2.3 V to 5.5 V |
|---|---|
| Output Voltage Options | Fixed or adjustable via external resistance divider |
| Switching Frequency Range | 500 kHz to 3 MHz |
| Shutdown Current | Less than 1 uA |
Source: Analog Devices AN-1149 Application Note Buck/Boost Regulators
All Analog Devices ADP2504 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the primary function of a buck/boost regulator?
It is used to generate an output voltage that is less than, greater than, or equal to the input voltage.
From: Analog Devices AN-1149 Application Note Buck/Boost Regulators
How does a buck/boost regulator improve battery life in portable systems?
It allows the system to operate down to the minimum practical battery voltage (e.g., 3.0 V), utilizing most of the stored energy compared to a low dropout regulator.
From: Analog Devices AN-1149 Application Note Buck/Boost Regulators
What protection features are built into the ADP2503/ADP2504?
The converters include over‑temperature shutdown, short‑circuit protection, and undervoltage lockout to prevent deep battery discharge.
What output currents are available for the ADP2503 and ADP2504?
ADP2503 can deliver up to 600 mA, while ADP2504 can deliver up to 1000 mA.
From: Analog Devices ADP2503/ADP2504 Buck-Boost DC-DC Converter Datasheet