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Application Notes

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Power-Supply Circuits

Application Notes for:Application Notes by Topology:
ALSO SEE: Power-Supply Cookbook — Tested designs, with bill of materials, to meet your specs.

PDA/Hand Terminal
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WINDOW		 PDF (236K) App Note 4326  Abstract
Reduce Standby Power Drains with Ultra-Low-Current, Pulse-Frequency-Modulated (PFM) DC-DC Converters
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WINDOW		 PDF (70K) App Note 4187  Abstract
Negative Charge Pumps Achieve Inductor-Like Efficiency for WLED Backlights
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WINDOW		 PDF (118K) App Note 4181  Abstract
Simplify the Design of 1-Cell Li+ Battery-Operated Devices
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WINDOW		 PDF (29K) App Note 4141  Abstract
Programming and Testing a DS2786-Based Circuit
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WINDOW		 PDF (29K) App Note 4106  Abstract
Using the DS2786 Battery Fuel Gauge in a 2-Cell Battery Pack
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WINDOW		 PDF (48K) App Note 3992  Abstract
Interpreting the Open-Circuit-Voltage (OCV) Fuel Gauge of the DS2786
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WINDOW		 PDF (38K) App Note 3603  Abstract
Buck Converters Proliferate in Handhelds as Features and Processing Power Increase
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WINDOW		 PDF (30K) App Note 3441  Abstract
Circuit Board Layout Guidelines for White LED Charge Pumps
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WINDOW		 PDF (105K) App Note 3243  Abstract
White-LED Boost Converter vs. Charge Pump
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WINDOW		 PDF (125K) App Note 3256  Abstract
Why Drive White LEDs with Constant Current?
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WINDOW		 PDF (99K) App Note 3241  Abstract
Charging Batteries Using USB Power
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WINDOW		 PDF (155K) App Note 3070  Abstract
Standard and White LED Basics and Operation
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WINDOW		 PDF (47K) App Note 3014  Abstract
LDO Improves White LED Current Matching
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WINDOW		 PDF (53K) App Note 2767  Abstract
DAC Makes Controller Programmable
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WINDOW		 PDF (26K) App Note 2047  Abstract
Step-Up/Step-Down Converter Features Ultra-Low Quiescent Current
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WINDOW		 PDF (146K) App Note 1804  Abstract
Driving LEDs in Battery-Operated Applications: Controlling Brightness Power Efficiently
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WINDOW		 PDF (31K) App Note 1930  Abstract
Technology Changes: From a Portable Power Point of View
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WINDOW		 PDF (65K) App Note 1876  Abstract
Doubler/Inverter Charge Pumps Divide by Two
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WINDOW		 PDF (36K) App Note 1875  Abstract
Triple Capacitive Voltage Inverter with the MAX871
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WINDOW		 PDF (39K) App Note 1864  Abstract
Regulated Dual Voltages Control STN-LCD Contrast
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WINDOW		 PDF (33K) App Note 1815  Abstract
Add Current Boost to USB Charger Driven by an AC Adapter
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WINDOW		 PDF (29K) App Note 1791  Abstract
Inductorless Voltage Converter Boosts a Single Lithium Cell
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WINDOW		 PDF (51K) App Note 1783  Abstract
Two AA Cells Power Dual-Supply µP
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WINDOW		 PDF (98K) App Note 883  Abstract
Improved Power Supply Rejection For IC Linear Regulators
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WINDOW		 PDF (50K) App Note 1750  Abstract
Powering Six White LEDs with High Efficiency Using the MAX1848
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WINDOW		 PDF (32K) App Note 1157  Abstract
Parallel-Port Interface Powers Low Voltage Systems
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WINDOW		 PDF (49K) App Note 1736  Abstract
Powering Four White LEDs with High Efficiency Using the MAX1848
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WINDOW		 PDF (43K) App Note 1161  Abstract
Current Limited DC-DC Controller Used as Step-Up Step-Down SEPIC Power Supply for USB Devices
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WINDOW		 PDF (33K) App Note 1153  Abstract
MAX1967 Efficiency Improvement with 3.3V Input
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WINDOW		 PDF (110K) App Note 751  Abstract
Linear Regulators in Portable Applications
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WINDOW		 PDF (131K) App Note 680  Abstract
How to Design Battery Charger Applications that Require External Microcontrollers and Related System-Level Issues
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WINDOW		 PDF (46K) App Note 1134  Abstract
Uninterruptible Power Supply for USB Devices
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WINDOW		 PDF (47K) App Note 1121  Abstract
Using Ceramic Output Capacitors with the MAX1734 Voltage-Mode Buck Converter
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WINDOW		 PDF (40K) App Note 1114  Abstract
High-Power Boost Converter Maintains Light-Load Efficiency
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WINDOW		 PDF (21K) App Note 1083  Abstract
Life with Batteries - Don't Ignore Typical Specs
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WINDOW		 PDF (158K) App Note 1037  Abstract
Charge-Pump and Step-Up DC-DC Converter Solutions for Powering White LEDs in Series or Parallel Connections
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WINDOW		 PDF (70K) App Note 1051  Abstract
SEPIC Equations and Component Ratings
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WINDOW		 PDF (106K) App Note 1014  Abstract
Design Case Study: Designing a Power Supply for a Portable, Wireless Contact Manager
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WINDOW		 PDF (29K) App Note 1021  Abstract
Buck/Boost Charge-Pump Regulator Powers White LEDs from a Wide 1.6V to 5.5V Input
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WINDOW		 PDF (47K) App Note 1020  Abstract
LDO Linear Regulator Improves White LED Brightness Matching
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WINDOW		 PDF (45K) App Note 967  Abstract
How to Minimize Power Dissipation in Li+ Linear Chargers
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WINDOW		 PDF (42K) App Note 959  Abstract
Dual 600mA Buck Converter for Logic Supply and Core Supply at 1V or Less
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WINDOW		 PDF (37K) App Note 947  Abstract
Dual Power Supply for Wallcube/Battery-Powered Systems
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WINDOW		 PDF (79K) App Note 897  Abstract
Single-Cell Li+ Cradle Charger With A Linear AC Adapter
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WINDOW		 PDF (27K) App Note 950  Abstract
Single-Cell Boost Converter Generates Auxiliary Bias For LCD
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WINDOW		 PDF (144K) App Note 817  Abstract
Using Thermistors in Temperature Tracking Power Supplies
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WINDOW		 PDF (69K) App Note 471  Abstract
Step-up Converter with LDO Beats SEPIC Efficiency
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WINDOW		 PDF (7K) App Note 477  Abstract
All-Ceramic 200mA Step-Up Converter for USB
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WINDOW		 PDF (19K) App Note 479  Abstract
All-Ceramic 320mA Step-Down Converter for USB
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WINDOW		 PDF (26K) App Note 297  Abstract
Tripler Converts 5V to 15V
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WINDOW		 PDF (57K) App Note 269  Abstract
Trading Performance for Cost in Portable Power Supplies
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WINDOW		 PDF (97K) App Note 268  Abstract
Wireless-Modem Power for Hand-Held Devices
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WINDOW		 PDF (33K) App Note 1810  Abstract
Low-Cost Step-Up/Step-Down Converter Accepts 2V to 16V Inputs
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WINDOW		 PDF (29K) App Note 966  Abstract
Low Battery Monitor Delays System Shutdown
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WINDOW		 PDF (60K) App Note 44  Abstract
Regulated Step-Up Converter Provides High Efficiency Without Inductors
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WINDOW		 PDF (200K) App Note 951  Abstract
Switch Allows Low-Voltage Regulator To Start Under Load
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WINDOW		 PDF (34K) App Note 1025  Abstract
Step-Up/Step-Down Converter Generates 3.3V From Two Or Three Cells
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WINDOW		 PDF (32K) App Note 136  Abstract
Three-Input Supply Powers 3.3 Portables

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