Datasheet Analog Devices ADP2323 — Datenblatt

Dual 3 A, 20 V Synchronous Step-Down
Regulator with Integrated High-Side MOSFET ADP2323 Data Sheet
FEATURES GENERAL DESCRIPTION
The ADP2323 is a full featured, dual output, step-down dc-todc regulator based on current-mode architecture. The ADP2323
integrates two high-side power MOSFETs and two low-side drivers
for the external N-channel MOSFETs. The two pulse-width modulation (PWM) channels can be configured to deliver dual 3 A
outputs or a parallel-to-single 6 A output. The regulator operates
from input voltages of 4.5 V to 20 V, and the output voltage can
be as low as 0.6 V.
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 ADP2323 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 CC1 VIN RBOT1 CSS1 INTVCC
MODE
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