MAX20048
PRODUCTIONAutomotive 40V, 55µA IQ, 2.2MHz, H-Bridge Buck-Boost Controller
Industry's Lowest IQ Buck-Boost Controller with Best in Class Transient Response
- Part Models
- 8
- 1ku List Price
- Starting From $4.31
Overview
- Meets Stringent Automotive Quality and Reliability Requirements
- Operating VIN Range: 2V to 36V Allows Operation in Cold-Crank Conditions
- Tolerates Input Transients to 40V
- EN Pin Compatible from +3.3V to +40V
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
- Efficient Solution in a Small Solution Size
- Skip Mode for Efficient Low-Power Operation
- Fixed 5V Output Voltage and Adjustable 4V to 25V
- High Switching Frequency Allows Use of Small External Components
- Small 4mm x 4mm, 24-Pin SWTQFN Package
- Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements
- 55µA Quiescent Current When in Standby Mode
- 10µA (max) Quiescent Current in Shutdown
- EMI Mitigation to Meet CISPR25 Class 5 Requirements
- 220kHz to 2.2MHz Operating Frequency
- Fixed-Frequency PWM Mode
- External Frequency Synchronization or SYNC OUT Capability (Selectable by OTP Option)
- Spread Spectrum Can Be Enabled or Disabled for IC by OTP Option
The MAX20048 is a current‐mode buck‐boost controller. The device operates with input voltages from 4.5V to 36V while using only 55µA quiescent current at no load. Once the start‐up conditions are satisfied, the device can operate over an extended input voltage range of 2V to 36V. The switching frequency is resistor programmable from 220kHz to 2.2MHz and can be synchronized to an external clock. The device output voltage is available as 5V fixed or adjustable from 4V to 25V. The wide input voltage range, along with its ability to maintain constant output voltage during battery transients, makes the device ideal for automotive applications. In light-load applications, a logic input (FSYNC) allows the device to operate either in skip mode for reduced current consumption, or fixed‐frequency, forced‐PWM mode to eliminate frequency variation and help minimize EMI. Protection features include cycle‐by‐cycle current limit followed by hiccup during sustained overloads, input undervoltage lockout (UVLO), output overvoltage protection, and thermal shutdown with automatic recovery. The MAX20048 is available in a small 4mm x 4mm, 24-pin TQFN-EP SW package.
Applications
- Infotainment Systems
- Body Electronics
- Start-Stop Systems
- Point of Load Power Supply
- USB Power Delivery
Documentation
Data Sheet 1
Technical Articles 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX20048ATGA/VY+ | LFCSP | ||
| MAX20048ATGA/VY+T | LFCSP | ||
| MAX20048ATGB/VY+ | LFCSP | ||
| MAX20048ATGB/VY+T | LFCSP | ||
| MAX20048ATGC/VY+ | LFCSP | ||
| MAX20048ATGC/VY+T | LFCSP | ||
| MAX20048ATGD/VY+ | LFCSP | ||
| MAX20048ATGD/VY+T | LFCSP |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- MAX20048
ADI Power Studio™ Designer
ADI Power Studio™ Designer is the next-generation tool for IC-level, power supply design, guiding engineers to faster, validated solutions.
Learn MoreLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
Evaluation Kit for the MAX20048
Resources
Reference Designs
4-Switch Buck-Boost Converter