The switching frequency can be programmed between 250 kHz and 1.2 MHz, or synchronized to an external clock to minimize interference in multirail applications. The dual PWM channels run 180° out of phase, thereby reducing input current ripple as well as reducing the size of the input capacitor.
The bidirectional synchronization pin can be programmed at a 60°, 90°, or 120° phase shift, providing the possibility for a stackable multiphase power solution.
The ADP2323ACPZ-R7 can be set to operate in pulse-frequency modulation (PFM) mode at a light load for higher efficiency or in forced PWM for noise sensitive applications. External compensation and soft start provide design flexibility. Independent enable inputs and power good outputs provide reliable power sequencing. To enhance system reliability, the device also includes undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent pro-tection (OCP), and thermal shutdown (TSD).
The ADP2323ACPZ-R7 operates over the −40°C to +125°C junction temperature range and is available in a 32-lead LFCSP_WQ package.
Applications- Communication infrastructure
- Networking and servers
- Industrial and instrumentation
- Healthcare and medical
- Intermediate power rail conversion
- DC-to-dc point of load applications
Feature
- Input voltage 4.5 V to 20 V
- ±1% output accuracy
- Integrated 90 mΩ typical high-side MOSFET
- Flexible output configurationDual output: 3 A/3 AParallel single output: 6 A
- Programmable switching frequency: 250 kHz to 1.2 MHz
- External synchronization input with programmable phase shift, or internal clock output
- Selectable PWM or PFM mode operation
- Adjustable current limit for small inductor
- External compensation and soft start
- Startup into precharged output
Applications
- Communication infrastructure
- Networking and servers
- Industrial and instrumentation
- Healthcare and medical
- Intermediate power rail conversion
- DC-to-dc point of load applications
(Picture: Pinout)
