Internal Power Switch Buck-Boost Regulators
Analog Devices' monolithic buck/boost synchronous dc-to-dc converters offer high current delivery and operation with a wide range of power sources, including single or multiple cell batteries, supercapacitor stacks and wall adapters. A proprietary 4-switch PWM buck-boost topology provides low noise, jitter-free switching through all operating modes, making them ideal for RF and precision analog applications that are sensitive to power supply noise. With their unique internal four MOSFET switch combination, they can seamlessly transition from step-down mode, through 100% dropout operation, and then to step-up mode to allow a fixed output voltage even when the input voltage fluctuates above or below the output. Some devices may be paralleled for higher power delivery, or include automatic maximum power point tracking (MPPT) for solar battery charging and MPPT control functions.
Product Selection Table
11446
en
Quick Power Search
Latest Resources
Design Notes
- DN361 - Simple Battery Circuit Extends Power over Ethernet (PoE) Peak Current PDF
- DN275 - Single Inductor, Tiny Buck-Boost Converter Provides 95% Efficiency in Lithium-Ion to 3.3V Applications PDF
- DN413 - Wide Input Voltage Range Buck-Boost Converter Simplifies Design of Variable Input Supplies PDF
- DN369 - Industry's First 4-Switch Buck-Boost Controller Achieves Highest Efficiency Using a Single Inductor PDF
- DN330 - High Input Voltage Monolithic Switcher Steps Up and Down Using a Single Inductor (Design Note 330A) PDF
- DN307 - Supply 2A Pulses for GSM Transmission from 500mA USB or PCMCIA Ports PDF
Product Selector Card
Technical Articles Page
- 18V Buck-Boost Converter with Intelligent PowerPath Control Delivers >2A at 95% Efficiency from Dual Inputs
- 1.5A Monolithic Buck-Boost DC/DC Converter with Up to 95% Efficiency Features 2.5V–15V Input and Output Voltage Ranges
- Techniques to Maximize Solar Panel Power Output
- 15V Buck-Boost Converters with Ultralow 1.3µA Quiescent Current are Tailored to Micropower Applications and the Internet of Things
- 2.7V to 40V Monolithic Buck-Boost DC/DC Expands Input Capabilities, Regulates Seamlessly through Automotive Cold-Crank and Load-Dump Transients
- 15V, 2.5A Monolithic Buck-Boost DC/DC Converter with 95% Efficiency and Low Noise Operation
- Complete 3-Rail Power Supply in a 4mm × 4mm QFN Package
- 0.25in2 × 1.8mm Dual Output Converter for Li-Ion to 3.3V and 1.8V
- Efficient Buck-Boost Converter Ideal for Power Saving Modes and Wide Input Voltage Ranges
- Versatile Buck-Boost Converter Offers High Efficiency in a Wide Variety of Applications
- High Input Voltage Monolithic Switcher Steps Up and Down Using Single Inductor
- Monolithic Buck-Boost Converter Provides 1A at 3.3V without Schottky Diodes
- It Just Got Easier to Convert Lithium-Ion Battery Voltage to 3.3V with this Efficient Single Inductor Synchronous Buck-Boost Regulator
Videos
Internal Power Switch Buck-Boost Regulators
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Output Current (typ) (A) | Vout Min (typ) (V) | Vout Max (typ) (V) | Features | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | LT3942 | 1 | 3 | 36 | 2 | 0 | 36 | Current Source Reference, External Synchronization, Low EMI, Open LED Detection, Open LED Protection, Output Current Monitor, Output Current Regulation, Resistor Set Frequency, Shorted LED Protection, Spread Spectrum | $2.95 (LT3942EUFD#PBF) |
| 2 | LTC3130 | 1 | 2.4 | 25 | 600m | 1 | 25 | Burst Mode, Maximum Power Point Control, Power Good | $3.35 (LTC3130EMSE#PBF) |
| 3 | LTC3119 | 1 | 250m | 18 | 5 | 795m | 18 | Burst Mode, External Synchronization, Maximum Power Point Control, Power Good, Resistor Set Frequency | $7.15 (LTC3119EUFD#PBF) |
| 4 | LTC3335 | 1 | 1.8 | 5.5 | 50m | 1.8 | 5 | Burst Mode, Integrated Coulomb Counter, Power Good | $3.35 (LTC3335EUDC#PBF) |
| 5 | LTC3106 | 1 | 850m | 5.1 | 300m | 1.8 | 5 | Battery Charger, Burst Mode, Maximum Power Point Control, Power Good, PowerPath | $2.94 (LTC3106EUDC#PBF) |
| 6 | LTC3118 | 1 | 2.2 | 18 | 2 | 2 | 18 | Burst Mode, Dual Input, Ideal Diode, Power Good, Prioritizer | $5.75 (LTC3118EUFD#PBF) |
| 7 | LTC3331 | 1 | 3 | 19 | 50m | 1.8 | 5 | Battery Charger, PowerPath | $3.55 (LTC3331EUH#PBF) |
| 8 | LTC3114-1 | 1 | 2.2 | 40 | 1 | 2.7 | 40 | Burst Mode, Output Current Limit | $3.95 (LTC3114EDHC-1#PBF) |
| 9 | LTC3111 | 1 | 2.5 | 15 | 1.4 | 2.5 | 15 | Burst Mode, External Synchronization | $3.50 (LTC3111EDE#PBF) |
| 10 | ADP5080 | 8 | 4 | 15 | 2 | 800m | 1.2 | Adjustable Switching Frequency, I2C Interface, Integrated Charge Pump | $3.99 (ADP5080ACBZ-1-RL) |
| 11 | LTC3115-2 | 1 | 2.7 | 40 | 2 | 2.7 | 40 | Burst Mode, External Synchronization, Resistor Set Frequency | $5.35 (LTC3115EDHD-2#PBF) |
| 12 | LTC3330 | 2 | 3 | 18 | 50m | 1.8 | 5 | Full Wave Bridge Rectifier | $3.55 (LTC3330EUH#PBF) |
| 13 | LTC3129-1 | 1 | 1.92 | 15 | 200m | 2.5 | 15 | Burst Mode, Fixed Output, Maximum Power Point Control, Power Good | $2.95 (LTC3129EMSE-1#PBF) |
| 14 | LTC3129 | 1 | 1.92 | 15 | 200m | 1.4 | 15.75 | Burst Mode, Maximum Power Point Control, Power Good | $2.95 (LTC3129EMSE#PBF) |
| 15 | LTC3536 | 1 | 1.8 | 5.5 | 1 | 1.8 | 5.5 | Burst Mode, External Synchronization, Output Disconnect, Resistor Set Frequency | $2.75 (LTC3536EDD#PBF) |
| 16 | LTC3115-1 | 1 | 2.7 | 40 | 2 | 2.7 | 40 | Burst Mode, External Synchronization, Resistor Set Frequency | $5.35 (LTC3115EDHD-1#PBF) |
| 17 | LTC3112 | 1 | 2.7 | 15 | 2.5 | 2.5 | 14 | Burst Mode, External Synchronization, Output Disconnect, Power Good | $4.00 (LTC3112EDHD#PBF) |
| 18 | LTC3521 | 3 | 1.8 | 5.5 | 1 | 1.8 | 5.25 | Burst Mode, Output Disconnect, Power Good | $3.25 (LTC3521EUF#PBF) |
| 19 | LTC3113 | 1 | 1.8 | 5.5 | 3 | 1.8 | 5.5 | Burst Mode, Output Disconnect, Resistor Set Frequency | $3.95 (LTC3113EDHD#PBF) |
| 20 | LTC3127 | 1 | 1.8 | 5.5 | 1 | 1.8 | 5.25 | Burst Mode, Input Current Limit, Output Disconnect | $2.95 (LTC3127EDD#PBF) |
| 21 | ADP2504 | 1 | 2.3 | 5.5 | 1 | 2.8 | 5.5 | External Synchronization | $1.44 (ADP2504ACPZ-3.3-R7) |
| 22 | ADP2503 | 1 | 2.3 | 5.5 | 600m | 2.8 | 5.5 | External Synchronization | $1.34 (ADP2503ACPZ-3.3-R7) |
| 23 | LTC3534 | 1 | 2.4 | 7 | 500m | 1.8 | 7 | Burst Mode, Output Disconnect | $3.15 (LTC3534EDHC#PBF) |
| 24 | LTC3520 | 2 | 2.2 | 5.5 | 1 | 800m | 5.25 | 100% Duty Cycle, Burst Mode, LDO, Output Disconnect, Resistor Set Frequency, Sequencing | $3.50 (LTC3520EUF#PBF) |
| 25 | LTC3538 | 1 | 2.4 | 5.5 | 800m | 1 | 5.5 | Burst Mode, Output Disconnect | $2.55 (LTC3538EDCB#TRPBF) |
| 26 | LTC3522 | 2 | 2.4 | 5.5 | 400m | 2.2 | 5.25 | 100% Duty Cycle, Burst Mode, Output Disconnect, Power Good | $2.50 (LTC3522EUD#PBF) |
| 27 | LTC3533 | 1 | 1.8 | 5.5 | 2 | 1.8 | 5.25 | Burst Mode, Output Disconnect, Resistor Set Frequency | $3.55 (LTC3533EDE#PBF) |
| 28 | LTC3530 | 1 | 1.8 | 5.5 | 600m | 1.8 | 5.25 | Burst Mode, Output Disconnect, Resistor Set Frequency | $2.75 (LTC3530EDD#PBF) |
| 29 | LTC3532 | 1 | 2.4 | 5.5 | 500m | 2.4 | 5.25 | Burst Mode, Output Disconnect, Resistor Set Frequency | $2.35 (LTC3532EDD#PBF) |
| 30 | LTC3531-3.3 | 1 | 1.8 | 5.5 | 200m | 3.3 | 3.3 | Burst Mode, Fixed Output, Output Disconnect | $1.95 (LTC3531EDD-3.3#PBF) |
| 31 | LTC3531-3 | 1 | 1.8 | 5.5 | 200m | 3 | 3 | Burst Mode, Fixed Output, Output Disconnect | $1.95 (LTC3531EDD-3#PBF) |
| 32 | LTC3531 | 1 | 1.8 | 5.5 | 200m | 2 | 5 | Burst Mode, Output Disconnect | $1.95 (LTC3531EDD#PBF) |
| 33 | LTC3444 | 1 | 2.7 | 5.5 | 400m | 500m | 5 | Output Disconnect | $2.40 (LTC3444EDD#PBF) |
| 34 | LTC3443 | 1 | 2.4 | 5.5 | 1.2 | 2.4 | 5.25 | Burst Mode, External Synchronization, Output Disconnect | $3.55 (LTC3443EDE#PBF) |
| 35 | LTC3442 | 1 | 2.4 | 5.5 | 1.2 | 2.4 | 5.25 | Burst Mode, Output Disconnect, Resistor Set Frequency | $3.95 (LTC3442EDE#PBF) |
| 36 | LTC3441 | 1 | 2.4 | 5.5 | 1.2 | 2.4 | 5.25 | Burst Mode, External Synchronization, Output Disconnect | $3.55 (LTC3441EDE#PBF) |
| 37 | LT3433 | 1 | 4 | 60 | 400m | 3.3 | 20 | Burst Mode, Output Disconnect | $3.25 (LT3433EFE#PBF) |
| 38 | LTC3440 | 1 | 2.5 | 5.5 | 600m | 2.5 | 5.5 | Burst Mode, External Synchronization, Output Disconnect, Resistor Set Frequency | $2.74 (LTC3440EMS#PBF) |
English
简体中文
日本語
Руccкий
