MAX15087
High-Efficiency, 2A Step-Down Switching Regulator with Tracking Feature
Smallest, Most Efficient 2A Solution in the Market with Tracking Input
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
Simplified Block Diagram
Technical Docs
| Data Sheet | High-Efficiency, 2A Step-Down Switching Regulator with Tracking Feature | Jul 05, 2011 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Key Features
- Internal 30mΩ (typ) RDS(ON) High-Side and 18mΩ (typ) Low-Side MOSFETs at 5V
- Continuous 2A Output Current Over Temperature
- 96% Efficiency with 3.3V Output at 2A
- ±1% Output Voltage Accuracy Over Load, Line, and Temperature
- Operates from 2.7V to 5.5V Supply
- Cycle-by-Cycle Overcurrent Protection
- Adjustable Output from 0.6V to Up to 0.94 x VIN
- Factory-Trimmed, 1MHz Switching Frequency
- Stable with Low-ESR Ceramic Output Capacitors
- Safe-Startup Into Prebiased Output
- External Reference Input for Tracking During Power-Up/Power-Down
- Skip-Mode Functionality
- Enable Input/Power-Good Output
- Fully Protected Against Overcurrent and Overtemperature
- Input Undervoltage Lockout
Applications/Uses
- Distributed Power Systems
- IP Phones
- Notebook Power
- Portable Devices
- Preregulators for Linear Regulators
- Server Power
Description
The MAX15087 uses a current-mode control architecture with a high gain transconductance error amplifier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients.
The MAX15087 offers selectable skip-mode functionality to reduce current consumption and achieve a higher efficiency at light output load. The low RDS(ON) integrated switches ensure high efficiency at heavy loads while minimizing critical inductances, making the layout design a much simpler task with respect to discrete solutions. Using a simple layout and footprint assures first-pass success in new designs.
The MAX15087 features a 1MHz, factory-trimmed, fixed-frequency PWM mode operation. The high switching frequency, along with the PWM current-mode architecture, allows for a compact, all-ceramic capacitor design.
The MAX15087 starts up safely into a PREBIAS output. A PGOOD open-drain output can be used as an interrupt and for power sequencing.
The MAX15087 is available in a 9-bump (3 x 3 array), 1.5mm x 1.5mm WLP package and is specified over the -40°C to +85°C temperature range.
Simplified Block Diagram
Technical Docs
| Data Sheet | High-Efficiency, 2A Step-Down Switching Regulator with Tracking Feature | Jul 05, 2011 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Request a Quote