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ADP5053

Analog Devices
Part Number ADP5053
Manufacturer Analog Devices
Description Integrated Power Solution
Published Mar 6, 2017
Detailed Description Data Sheet Integrated Power Solution with Quad Buck Regulators and Supervisory Circuits ADP5053 FEATURES Wide input vo...
Datasheet PDF File ADP5053 PDF File

ADP5053
ADP5053

Overview
Data Sheet Integrated Power Solution with Quad Buck Regulators and Supervisory Circuits ADP5053 FEATURES Wide input voltage range: 4.
5 V to 15.
0 V ±1.
5% output accuracy over full temperature range 250 kHz to 1.
4 MHz adjustable switching frequency Adjustable/fixed output options via factory fuse Power regulation Channel 1 and Channel 2: programmable 1.
2 A/2.
5 A/4 A sync buck regulators with low-side FET driver Channel 3 and Channel 4: 1.
2 A sync buck regulators Single 8 A output (Channel 1 and Channel 2 operated in parallel) Precision enable with 0.
8 V accurate threshold Active output discharge switch FPWM or automatic PWM/PSM selection Frequency synchronization input or output Optional latch-off protection on OVP/OCP failure Power-good flag on selected channels UVLO, OCP, and TSD protection Open-drain processor reset with external adjustable threshold monitoring Watchdog refresh input Manual reset input APPLICATIONS Small cell base stations FPGA and processor applications Security and surveillance Medical applications GENERAL DESCRIPTION The ADP5053 combines four high performance buck regulators, a supervisory circuit, a watchdog timer, and a manual reset in a 48-lead LFCSP package that meets demanding performance and board space requirements.
The device enables direct connection to high input voltages up to 15.
0 V with no preregulators.
Channel 1 and Channel 2 integrate high-side power MOSFET and low-side MOSFET drivers.
External NFETs can be used in low-side power devices to achieve an efficiency optimized solution and deliver a programmable output current of 1.
2 A, 2.
5 A, or 4 A.
Combining Channel 1 and Channel 2 in a parallel configuration can provide a single output with up to 8 A of current.
Channel 3 and Channel 4 integrate both high-side and low-side MOSFETs to deliver an output current of 1.
2 A.
TYPICAL APPLICATION CIRCUIT C1 4.
5V TO 15V VREG VDD C0 PVIN1 C2 COMP1 EN1 SS12 PVIN2 C5 COMP2 EN2 PWRGD ADP5053 INT VREG 100mA OSCILLATOR CHANNEL 1 BUCK...


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