Products - Step-Down

XC9213 5A~, 25V Synchronous Step-Down DC/DC Controller

5A~, 25V Synchronous Step-Down DC/DC Controller image


Property XC9213
Output Current 5A
Input Voltage 4.0 ~ 25V
Output Voltage ADJ=1.0V
Oscillation Frequency 300kHz
Quiescent Current 45µA
Packages TSSOP-16

Product Description

5A~, 25V Synchronous Step-Down DC/DC Controller

  • Output Current 5A ~
  • Operating Voltage 2.5V~ 25V
  • 93% Efficiency
  • PWM/PFM Manual Switching Control

The XC9213 is a Step-Down Synchronous N-Channel DC/DC controller incorporating an internal bootstrap circuit providing a solution capable of delivering output currents in excess of 5 Amps.

Targeting applications with a wide input voltage range, the XC9213 has an operating voltage range from 2.5V to 25V (30V absolute max.) Power conversion efficiencies of 93% are typical (VIN: 5V, VOUT: 3.3V @ 1A) with a switching frequency of 300kHz. The output voltage is set up externally via a potential divider in the range of 1.5V to 15V and internal reference voltage (1.2V +/- 1.5%). The MODE pin allows the user to select either Synchronous PWM or Non-Synchronous PWM/PFM auto-switching operations. In the auto-switching mode,the controller switches between PWM and current-limited PFM operation to maximize efficiencies at low output loads.


  • Input Voltage: 2.5V ~ 25V
  • Output Voltage: 1.5V ~ 15V (set externally)
  • Output Current: 5A~
  • Oscillator Frequency: 300KHz
  • Synchronous, Bootstrap Nch-Nch Drive
  • Built-in Overcurrent Protection Circuit

XC9213 Typical Application Circuit

XC9213 Efficiency vs Load