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ADP5052ACPZ-R7 Datasheet(HTML) 1 Page - Analog Devices

Part No. ADP5052ACPZ-R7
Description  5-Channel Integrated Power Solution with Quad Buck Regulators and 200 mA LDO Regulator
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ADP5052ACPZ-R7 Datasheet(HTML) 1 Page - Analog Devices

 
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5-Channel Integrated Power Solution with Quad
Buck Regulators and 200 mA LDO Regulator
Data Sheet
ADP5052
Rev. 0
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
Wide input voltage range: 4.5 V to 15 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
Channel 5: 200 mA low dropout (LDO) regulator
Always alive 5.1 V LDO supply for tiny load demand
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 mode 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
48-lead, 7 mm × 7 mm LFCSP package
−40°C to +125°C junction temperature
APPLICATIONS
Small cell base stations
FPGA and processor applications
Security and surveillance
Medical applications
TYPICAL APPLICATION CIRCUIT
CHANNEL 2
BUCK REGULATOR
(1.2A/2.5A/4A)
CHANNEL 3
BUCK REGULATOR
(1.2A)
OSCILLATOR
INT VREG
100mA
Q1
Q2
L1
L2
VREG
SYNC/MODE
RT
FB1
BST1
SW1
DL1
PGND
DL2
SW2
BST2
FB2
L3
BST3
SW3
FB3
PGND3
L4
BST4
SW4
FB4
PGND4
VREG
PVIN1
COMP1
EN1
PVIN2
COMP2
EN2
PVIN3
PWRGD
SS34
COMP3
EN3
PVIN4
COMP4
EN4
C2
C1
C4
C3
C5
C6
C7
C8
C9
C10
C11
C12
C13
4.5V TO 15V
VOUT1
VOUT2
VOUT3
VOUT4
RILIM1
RILIM2
VREG
EXPOSED PAD
SS12
C0
VDD
CHANNEL 5
200mA LDO
REGULATOR
FB5
PVIN5
EN5
VOUT5
C14
C15
VOUT5
1.7V TO 5.5V
ADP5052
CHANNEL 1
BUCK REGULATOR
(1.2A/2.5A/4A)
CHANNEL 4
BUCK REGULATOR
(1.2A)
Figure 1.
GENERAL DESCRIPTION
The ADP5052 combines four high performance buck regulators
and one 200 mA low dropout (LDO) regulator 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 V with no preregulators.
Channel 1 and Channel 2 integrate high-side power MOSFETs 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 output current of 1.2 A.
The switching frequency of the ADP5052 can be programmed
or synchronized to an external clock. The ADP5052 contains a
precision enable pin on each channel for easy power-up sequencing
or adjustable UVLO threshold.
The ADP5052 integrates a general-purpose LDO regulator with
low quiescent current and low dropout voltage that provides up
to 200 mA of output current.


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