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01-05-2015

5 A, 20 Vin Step-Down μModule Regulator's Entire Solution Fits within 0.5 cm²

Linear Technology » LTM4625

Linear Technology launched the LTM4625, a 5 A, 20 VIN step-down μModule® (micromodule) regulator in a 6.25 mm × 6.25 mm × 5.01 mm BGA package which, with a few passive components, fits in to 0.5 cm2 on a double-sided PCB. Like other µModule regulators, the LTM4625 includes the DC/DC controller, power switches, inductor and compensation components in a single package. Only two external ceramic capacitors (1206 case size) and a resistor (0603 case size) are required for operation. The LTM4625 operates from a 4 V to 20 V input supply, delivering a regulated output adjustable between 0.6 V and 5.5 V with ±1.5 percent accuracy over line, load and temperature.

Linear Technology - LTM4625

The LTM4625 operates at a user-adjustable switching frequency from 800 kHz to 4 MHz or can be synchronised to an external clock from 700 kHz to more than 1.3 MHz. The module also provides a clock-out signal at the same frequency with selectable phase shift (90°, 120° or 180°). With the addition of an external bias supply above 4 V, the LTM4625 can operate from an input voltage as low as 2.375 V. Output overvoltage, overcurrent and overtemperature fault protection are included in the regulator.

Linear Technology - LTM4625

The LTM4625 is available with guaranteed operation over the –40 °C to +125 °C internal temperature range. The μModule regulator is available for immediate delivery from stock, priced starting at $6.45 each for 1,000 piece quantities.

Summary of Features: LTM4625

  • 5 A DC/DC step-down solution in less than 0.5 cm2
    • Only two surface-mount ceramic capacitors and one resistor required for a complete solution
  • 6.25 × 6.25 × 5.01 mm BGA package
  • 4 V to 20 V VIN range
    • As low as 2.375 VIN with external bias supply
  • User-adjustable VOUT between 0.6 V and 5.5 V ±1.5 percent accurate over line, load and temperature

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