LTM4633EY#PBF is a high-performance quad-output step-down (buck) DC-DC converter manufactured by ADI(Linear Technology)
Specifications
MFR:
ADI
Product Number:
LTM4633EY#PBF
Description:
Non-Isolated PoL Module DC DC Converter 3 Output 0.8 ~ 1.8V 0.8 ~ 1.8V 0.8 ~ 5.5V 10A, 10A, 10A 4.7V - 16V Input
Highlight:
ADI quad-output buck converter
,LTM4633EY step-down DC-DC converter
,Linear Technology high-performance power converter
Introduction
LTM4633EY#PBF - Quad-Output Step-Down DC-DC Converter
The LTM4633EY#PBF is a high-performance quad-output step-down (buck) DC-DC converter manufactured by Analog Devices (Linear Technology). It integrates four independent, synchronous buck regulators in a compact package, designed to deliver efficient power conversion for power-constrained, space-limited applications—particularly in industrial, automotive, and communication systems where multiple low-voltage power rails are required.
Core Features
Power Conversion Performance
- Quad Independent Regulators: Four fully integrated, synchronous buck converters in a single IC, eliminating the need for multiple discrete converters and reducing board space.
- Output Voltage Range: Each regulator supports an adjustable output voltage from 0.6 V to 5.5 V, compatible with a wide range of load requirements.
- Output Current Capacity: Up to 3 A of continuous output current per channel (total maximum output current of 12 A for the IC).
- High Efficiency: Typical efficiency of 95% (at 12 V input, 3.3 V output, 1 A load), with ~85% efficiency at light loads (100 mA).
Operational Flexibility
- Input Voltage Range: 4.5 V to 28 V, supporting common power sources.
- Switching Frequency: Programmable from 250 kHz to 2 MHz via an external resistor.
- Synchronization: Supports synchronization to an external clock (250 kHz to 2 MHz).
- Soft Start: Built-in soft-start functionality per channel to prevent inrush current.
- Phase Spreading: Optional 90° phase shifting between channels reduces input current ripple.
Protection and Reliability
- Comprehensive Protection Features: Overcurrent Protection (OCP), Overvoltage Protection (OVP), Undervoltage Lockout (UVLO), and Thermal Shutdown (TSD).
- Operating Temperature Range: -40°C to +125°C (junction), ensuring reliable performance in harsh environments.
Packaging and Integration
- Package Type: 48-lead LQFP (7 mm * 7 mm footprint).
- High Integration: Includes power switches, compensation components, and control logic, minimizing external components.
Typical Applications
| Application Field | Specific Use Cases |
|---|---|
| Industrial Electronics | Industrial automation controllers, motor control systems, test and measurement equipment |
| Automotive Electronics | In-vehicle infotainment systems, ADAS, automotive telematics units |
| Communication Systems | Enterprise routers/switches, small-cell base stations, IoT gateways |
| Embedded & Computing | Single-board computers, portable medical devices, consumer electronics |
Key Advantages
- Space Savings: Quad regulators in one IC reduce board area compared to discrete converters.
- Efficiency: High efficiency across load and input voltage ranges.
- Flexibility: Wide input/output voltage ranges and programmable frequency.
- Reliability: Robust protection features and extended temperature range.
- Ease of Design: High integration minimizes external components.
The LTM4633EY#PBF is a versatile power management solution, well-suited for any application requiring multiple efficient, reliable, and compact step-down power rails.
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