先頭に戻る
/content/maximintegrated/ja/products/power/switching-regulators/application/battery-powered

Battery Powered

Applications powered by lithium ion (Li+), alkaline, NiMH, and lead-acid chemistries use step-up (boost), step-down (buck), or step-up/step-down switching regulators to efficiently convert battery power to the regulated voltages needed for the system. The battery configuration, single- or multi-cell, is selected by the designer. Multi-cell configurations consist of cells connected in series, parallel, or some combination. The selected switching regulator type depends on the battery configuration and the required input voltage range for the design.

Coin cell powered applications that require multiple power rails can benefit from a PMIC (power management IC).  These multi-function ICs usually feature step-up/step-down regulators, step-up regulators and low-dropout (LDO) regulator outputs.

Here are some recommended Maxim switching regulators and PMICs for use with different battery configurations.

Single-Cell Battery Applications

Devices powered from a single Li+ cell can use either step-up or step-up/step-down converters to generate stable voltage rails.  The voltage output of a single -cell Li+ battery typically ranges from  2.7V to 4.2V.  If the desired voltage rail falls within this range (e.g., 3.3V), then a step-up/step-down converter typically provides the best solution. If the desired voltage rail is above this range(e.g., 5V),  then a step-up converter provides the best solution.

Recommended Step-Up/Step-Down Switching Regulators for Single Cell Li+ Battery Applications 
Recommended Step-Up Regulators, Single-Cell Li+ Battery Applications 

Multi-rail applications powered by single cell Li+ batteries, can benefit from an integrated PMIC to achieve high conversion efficiency and space savings.

Recommended multi-rail PMICs for Single Cell Li+ Battery Applications 

Alkaline or NiMH single-cell powered devices generally use one or more step-up (boost) regulators. This applies to standard AA-type batteries and small coin cells that have output voltages in the range of 0.8V to 1.8V.

Recommended Step-Up Regulators, Single-Cell AA Battery Applications 

Multi-Cell Battery Applications

Battery applications that have higher power needs often connect batteries in parallel or series to provide the increased total energy need. These battery configurations usually provide higher output voltages than the application rail. In these applications, step-down (buck) regulators convert the high variable input voltage into lower regulated output voltage rails.

Recommended Step-Down Regulators, Multi-Cell AA Battery Applications 
Recommended Step-Down Regulators, High-Current Li+ Battery Applications 

12V Gel Cell Applications

High capacity, 12V sealed gel batteries are popular in many applications because they are cost effective and can be easily recharged.

Recommended Step-Down Switching Regulators, 12V Gel Cells 

Need a Battery Charger for Your Application?

If you're looking for switching regulators for battery-powered applications and want extra features like an integrated battery charger, view our PMIC Applications page. If you're looking for a standalone battery-charger IC, see our Battery Management page.

種類 ID PDF タイトル
アプリケーションノート 4181 Simplify the Design of 1-Cell Li+ Battery-Operated Devices
アプリケーションノート 3603 Buck Converters Proliferate in Handhelds as Features and Processing Power Increase
アプリケーションノート 2047 Step-Up/Step-Down Converter Features Ultra-Low Quiescent Current
アプリケーションノート 1783 Two AA Cells Power Dual-Supply µP
アプリケーションノート 1025 Highly Efficient SEPIC Switching Regulator Generates 3V from Multiple Cells
アプリケーションノート 471 Step-up Converter with LDO Beats SEPIC Efficiency

Technical Documentaion

*必須

Technical Documentaion

技術資料

表示: 10 表示トップ 100 結果 全て表示 結果

型番 タイトル ドキュメントの種類 日付

MAXREFDES9004: C-source Reference for Operating the DS2485 Combined with a DS28E18 from a Cortex-M4 Microcontroller

The MAXREFDES9004 is a reference design showcasing the DS2485 features integrated with an Arm® C...

MAXREFDES1284: Himalaya Power Evaluation Platform

Himalaya Power Evaluation Platform provides a proven design to evaluate 12 different high-effici...

MAXREFDES9002: C-source Reference for Operating the DS28E18 from Cortex-M4 GPIO Pins

Extend an I2C and SPI interface using the DS28E18 with included M4 compatible 1-Wire API and C-d...

MAXREFDES1275: 1A,3-Channel LED Driver in Buck Configuration using MAX20050 and its dimming control using MAX32630FTHR

The MAX20050 is a high-brightness LED driver for automotive exterior lighting applications.

MAXREFDES1260: Li Battery Charger and Monitor System with 3A USB-C Input

The purpose of MAXREFDES1260 is to solve the problem of high-voltage fast charging of 2S battery...

MAXREFDES1253: Miniature 17V, 0.75A No Opto Flyback DC to DC Converter Using the MAX17690

The MAXREFDES1253 illustrates techniques using the No Opto Flyback converter to generate isolate...

MAXREFDES1264: Digitally Controlled Sine-Wave Generator Using the MAX32630FTHR and MAX7400

The MAXREFDES1264 is a reference design for the MAX32630FTHR and MAX7404 produces an accurate va...

MAXREFDES1263:完全ワイヤレスステレオクレードルおよびイヤホン

このリファレンスデザインは、TWSクレードルおよびイヤホン(左および右)用のパワーマネージメントプラットフォームです。
MAXREFDES1256: 49W DC-DC Flyback Converter Using MAX17597

MAXREFDES1256: 49W DC-DC Flyback Converter Using MAX17597

The MAXREFDES1256 is an isolated power supply capable of delivering 7V at up to 7A load current.

MAXREFDES1257: 24W/48V DC-DC Boost Converter Using the MAX17597 Peak-Current-Mode Controller

The MAXREFDES1257 is a DC-DC boost power supply that delivers up to 500mA at 48V from an 8V to 1...

MAXREFDES1238: Scalable, Single Input, 6 Output, Power Solution for the Versal ACAP Platform

In this design a single 12V input supplies a circuit which outputs 6 separate rails ranging from...

MAXREFDES1233: 1.8V/10A Core Power Supply for CPUs, Microcontrollers, FPGAs, or DDR2 Interfaces Using the MAX20710

The MAXREFDES1233 provides the internal core voltage (VCCINT) for CPUs, microcontrollers, FPGAs,...

MAXREFDES1141: 2.4W DC-DC Flyback Converter Using the MAX17596

The MAX17596 is a peak-current-mode controller for designing wide input-voltage flyback regulato...

MAXREFDES1171: Low-Power Fault Indicators

The MAXREFDES1171 uses Maxim® low-power chips for power grid fault indicators based on the low-p...

MAXREFDES1155: Dual Channel RTD/TC Measurement Based on MAX11410

MAXREFDES1155 is a configurable two-channel resistance temperature detector (RTD)/thermocouple (...

MAXREFDES1173: Miniature, 12V/1A, No-Opto Flyback DC-DC Converter with 91.3% Efficiency Using the MAX17690

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES1099: Miniature, 24V/500mA, No-Opto Flyback DC-DC Converter with 93% Efficiency Using the MAX17690

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES1104: Miniature, 5V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 90% Efficiency Using MAX17690 and MAX17606

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...