MAX15157D
60V Current-Mode Buck Controller with Lossless Current Sense
Achieve High-Voltage KW Designs with Highest Efficiency and Density with Industry's First HV-Coupled Buck
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Key Features
Applications/Uses
| VIN (V) (min) | 8 |
| VIN (V) (max) | 60 |
| VOUT1 (V) (min) | 3 |
| VOUT1 (V) (max) | 57 |
| Switch Type | External |
| Output Adjust. Method | Adjustable |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 60-1000 |
| Package/Pins | TQFN/32 |
| Budgetary Price (See Notes) | 6.23 |
Simplified Block Diagram
Technical Docs
| Data Sheet | 60V Current-Mode Buck Controller with Lossless Current Sense | Feb 17, 2021 |
Support & Training
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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 [email protected] with any questions regarding this Sample Site.
Parameters
| VIN (V) (min) | 8 |
| VIN (V) (max) | 60 |
| VOUT1 (V) (min) | 3 |
| VOUT1 (V) (max) | 57 |
| Switch Type | External |
| Output Adjust. Method | Adjustable |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 60-1000 |
| Package/Pins | TQFN/32 |
| Budgetary Price (See Notes) | 6.23 |
Key Features
- 8V to 60V Input Voltage Range
- 3V to 0.95 × VIN Output Voltage Range
- 60kHz to 1MHz Switching Frequency Range
- Interleaved 1/2/3/4/6/8-Phase Operation
- -40°C to +125°C Temperature Range
- Internal LDO for Bias Supply Generation
- Synchronization Input
- Current Monitor Output
- Internal 2V Precision Reference
- 2Ω Pullup and 0.6Ω Pulldown Fast Power FET Drivers
- Accurate MOSFET Dead Time Adaptive Control
- Adjustable Input Undervoltage Lockout
- Adjustable Input EN
- Adjustable Cycle-by-Cycle OvercurrentProtection
- Input Undervoltage Fault Protection
- Multiple Levels of Overvoltage Protection
- Thermal Shutdown
- Adjustable Slope Compensation
- Discrete Inductor or Compact Coupled Inductor Architecture
- Lossless RDSON or Resistor Current Sensing
Applications/Uses
- Data Center
- Industrial
- Multiphase Buck
Description
The switching frequency is controlled either through external resistor that sets the internal oscillator, or by synchronizing the regulator to an external clock. The device is designed to support 60kHz to 1MHz switching frequencies. The controller has a dedicated undervoltage lockout pin (UVLO) and an accurate enable input threshold for flexible power sequence configuration. The controller also has multiple fault-protection circuits to protect against overcurrent (OCP) adjustable through the ILIM pin, output overvoltage (OVP), input undervoltage (UVLO), and thermal shutdown.
The MAX15157D features an adjustable internal compensation ramp. The device incorporates an accurate current-sense amplifier that reports output current through an analog output (IMON).
The MAX15157D features lossless LS FET RDSON or resistor current sensing. The device allows programmable single-phase or multiphase operation, up to eight interleaved phases, and implements an accurate current balance scheme. The MAX15157D can operate with either discrete inductors or coupled inductors in case of multiphase operation.
The device is available in a 5mm × 5mm, 32-pin TQFN package and supports a -40°C to +125°C junction temperature range.
Simplified Block Diagram
Technical Docs
| Data Sheet | 60V Current-Mode Buck Controller with Lossless Current Sense | Feb 17, 2021 |
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 [email protected] with any questions regarding this Sample Site.
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