Products - Step-Down

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.

Features:

• 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