MAX15112
High-Efficiency, 12A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches
Smallest (2mm x 3mm), 12A DC-DC Solution with Integrated MOSFETs on the Market
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Key Features
Applications/Uses
| VIN (V) (min) | 2.7 |
| VIN (V) (max) | 5.5 |
| VOUT1 (V) (min) | 0.6 |
| VOUT1 (V) (max) | 5.17 |
| IOUT1 (A) (max) | 12 |
| Switch Type | Internal |
| Output Adjust. Method | Dyn. REF In Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 1000 |
| Package/Pins | WLP HC/24 |
| Budgetary Price (See Notes) | 6.26 |
Simplified Block Diagram
Technical Docs
| Data Sheet | High-Efficiency, 12A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches | Oct 20, 2011 |
Support & Training
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Sampling:
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Parameters
| VIN (V) (min) | 2.7 |
| VIN (V) (max) | 5.5 |
| VOUT1 (V) (min) | 0.6 |
| VOUT1 (V) (max) | 5.17 |
| IOUT1 (A) (max) | 12 |
| Switch Type | Internal |
| Output Adjust. Method | Dyn. REF In Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 1000 |
| Package/Pins | WLP HC/24 |
| Budgetary Price (See Notes) | 6.26 |
Key Features
- Continuous 12A Output Current
- ±1% Feedback Accuracy Over Load, Line, and Temperature
- Operates from 2.7V to 5.5V Supply
- Input Undervoltage Lockout
- Adjustable Output Range from 0.6V Up to 0.94 x VIN
- Programmable Soft-Start
- Factory-Trimmed 1MHz Switching Frequency
- Stable with Low-ESR Ceramic Output Capacitors
- Safe-Startup into a Prebiased Output
- External Reference Input
- Selectable Skip Mode Option for Improved Efficiency at Light Loads
- Enable Input/PGOOD Output Allows Sequencing
- Remote Ground Sense for Improved Accuracy
- Thermal and Overcurrent Protection
- Tiny 2.10mm x 3.05mm, 24-Bump WLP Package
Applications/Uses
- Base Stations
- DDR Memory
- Distributed Power Systems
- Notebooks
- Preregulators for Linear Regulators
- Servers
Description
The MAX15112 utilizes a current-mode control architecture with a high-gain transconductance error amplifier, which allows a simple compensation scheme and enables a cycle-by-cycle current limit with fast response to line and load transients. A factory-trimmed switching frequency of 1MHz (PWM operation) allows for a compact, all-ceramic capacitor design.
Integrated switches with low on-resistance ensure high efficiency at heavy loads while minimizing critical inductances. The MAX15112’s simple layout and footprint assure first-pass success in new designs.
Other features of the MAX15112 include a capacitor-programmable soft-start to reduce inrush current, safe startup into a prebiased output, an enable input, and a power-good output for power sequencing.
The regulator is available in a 24-bump (4 x 6), 2.1mm x 3.05mm WLP package, and is fully specified over the -40°C to +85°C extended temperature range.
Technical Docs
| Data Sheet | High-Efficiency, 12A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches | Oct 20, 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.
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