Analog Devices / Maxim Integrated MAX17536 & MAX17546 Step-Down DC-DC Converters
Analog Devices MAX17536 and MAX17546 Step-Down DC-DC Converters are high-efficiency, high-voltage with an integrated high-side MOSFET. The converters can deliver up to 4A or 5A and generate output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.4% over -40°C to +125°C. The Analog Devices MAX17536 and MAX17546 Step-Down DC-DC Converters are available in a compact 5.0mm x 5.0mm Thin Quad Flat No-Lead (TQFN) package.
Features
- Reduces external components and total cost
- No Schottky-synchronous operation
- Internal compensation for any output voltage
- Built-in soft-start
- All-ceramic capacitors, compact layout
- Reduce number of DC-DC regulators to stock
- Wide 4.5V to 42V or 60V input
- Adjustable 0.9V to 0.9 x VIN output
- 100KHz to 2.2MHz adjustable switching frequency with external synchronization
- Reduces power dissipation
- Peak efficiency > 95%
- PFM/DCM modes enable enhanced light-load efficiency
- Auxiliary bootstrap LDO for improved efficiency
- 3.5µA shutdown current
- Operates reliably in adverse industrial environments
- Hiccup or latchoff mode overload protection
- Dl to lx short detection feature
- Built-in output voltage monitoring with reset
- Programmable EN/UVLO threshold
- Monotonic startup into pre-biased load
- Over-temperature protection
- -40°C to +125°C operation
Applications
- Industrial power supplies
- Distributed supply regulation
- Base station power supplies
- Wall transformer regulation
- High-voltage single-board systems
- General-purpose point-of-load
Development Tool
Mikroe MIKROE-2997 Buck 8 Click
High efficiency, wide voltage range, and high current synchronous step-down (buck) DC-DC converter.
MAX17536 Application Circuit
MAX17546 Application Circuit
Opublikowano: 2016-04-04
| Zaktualizowano: 2023-04-13