Analog Devices Inc. LTC3630A Demo Board DC1877A

Analog Devices Inc. LTC3630A Demo Board DC1877A is an evaluation board featuring a 500mA output DC-DC power supply example circuit based on the LTC3890A Synchronous Step-Down DC-DC Controller. The LTC3630A features high-efficiency Burst Mode® operation and includes internal high and low side power switches. The DC1877A Demonstration Board provides jumper-selected output voltages of 1.8V, 3.3V, 5V, and an option for additional voltages. The LTC3630A has internal soft-start and a provision for increasing soft-start time.

Included on the LTC3630A Demo Board DC1877A is an ON/OFF jumper that can also be configured as a precision undervoltage lockout. Additional PC pads are included for programming the current limit to optimize efficiency and for reducing output voltage ripple and reducing component size. A terminal (FBO) is available to allow multiple boards to be paralleled for increasing output current.

Output voltage between 800mV and VIN can be programmed using optional resistors. (Higher voltage output capacitors may be required.)


  • Input Supply Range (VIN): 4V to 76V
  • 1.8V Output: 1.8V ±2%
  • 3.3V Output: 3.3V ±2%
  • 5V Output: 5V ±2%
  • Maximum Output Current (IOUT): 500mA
  • Typical Output Voltage Ripple: 84mVP-P

Test Setup

Mechanical Drawing - Analog Devices Inc. LTC3630A Demo Board DC1877A
Publicado: 2019-06-28 | Atualizado: 2022-03-11