2-Channel DC/DC Controllers
The X9503 is a dual channel Step-down DC/DC controller IC. Output voltages are individually set-up externally, using two resistors and the control of the XC9503B092AR series can be switched between PWM and PFM/PWM auto-switching using the MODE pin.
Control switches from PWM to PFM during light loads when auto-switching is selected. This maximises the efficiency across all output loads. In PWM mode noise is easily reduced since the switching frequency is fixed.
Features:
- Input Voltage: 0.9V ~ 10.0V
- Output Voltage Range:
- Output 1: 0.9V ~ 6.0V
- Output 2: 0.9V ~ 6.0V
- Switching Frequency: 180kHz, 300kHz & 500kHz
- Standby Current: 3.0μA (max)
- Soft Start internally set-up
- Output Voltage externally set-up
- PWM, PWM/PFM switching control
