ADP5022ACBZ-6-R7 Analog Devices Inc, ADP5022ACBZ-6-R7 Datasheet

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ADP5022ACBZ-6-R7

Manufacturer Part Number
ADP5022ACBZ-6-R7
Description
Buck1=1.0V, Buck2=1.8V, LDO=2.5VUVLO=Low
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADP5022ACBZ-6-R7

Topology
Step-Down (Buck) Synchronous (2), Linear (LDO) (1)
Function
Any Function
Number Of Outputs
3
Frequency - Switching
3MHz
Voltage/current - Output 1
1V, 600mA
Voltage/current - Output 2
1.8V, 600mA
Voltage/current - Output 3
2.5V, 150mA
W/led Driver
No
W/supervisor
No
W/sequencer
Yes
Voltage - Supply
2.3 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-WFBGA, WLCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ADP5022ACBZ-6-R7
ADP5022ACBZ-6-R7TR
FEATURES
Input voltage range: 2.4 V to 5.5 V
Tiny 16-ball, 2 mm × 2 mm WLCSP package
Overcurrent and thermal protection
Soft start
Factory programmable undervoltage lockout on VDDA
Factory programmable default output voltages for all
Buck1 and Buck2 key specifications
LDO key specifications
V
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
IN
TO 5.5V
system supply of either 2.2 V or 3.9 V
3 channels
Current mode architecture for excellent transient response
3 MHz operating frequency
Uses tiny multilayer inductors and capacitors
Forced PWM and auto PWM/PSM modes
Out-of-phase operation for reduced input filtering
100% duty cycle low dropout mode
24 μA typical quiescent current per channel, no switching
Stable with 1 μF ceramic output capacitors
High PSRR
Low output noise
Low dropout voltage: 150 mV @ 150 mA load
11 μA typical ground current at no load
APPLICATIONS
USB devices
Handheld products
Multivoltage power for processors, ASICS, FPGAs,
= 2.4V
60 dB up to 10 KHz
65 μV rms output noise at VOUT3 = 3.3 V
and RF chipsets
1µF
C1
4.7µF
4.7µF
C2
C3
OFF
OFF
OFF
ON
ON
ON
Figure 1. Typical Applications Circuit
VDDA
VIN1
VIN2
VIN3
EN1
EN2
EN3
ADP5022
EN_BK1
EN_BK2
EN_LDO1
BUCK1
BUCK2
LDO1
MODE
MODE
AGND
SW1
VOUT1
PGND1
MODE
SW2
VOUT2
PGND2
VOUT3
PWM
1µH
1µH
L1
L2
PWM/PSM
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The ADP5022 is a micro power management unit (micro PMU)
that combines two high performance buck regulators and a low
dropout regulator (LDO) in a tiny 16-ball 2.08 mm × 2.08 mm
WLCSP to meet demanding performance and board space
requirements.
The high switching frequency of the buck regulators enables
tiny multilayer external components and minimizes the board
space required. When the MODE pin is set high, the buck reg-
ulators operate in forced PWM mode. When the MODE pin is
set low, the buck regulators automatically switch operating
modes, depending on the load current level. At higher output
loads, the buck regulators operate in PWM mode. When the
load current falls below a predefined threshold, the regulators
operate in power save mode (PSM), improving the light-load
efficiency.
The two bucks operate out-of-phase to reduce the input
capacitor requirement and noise.
The low quiescent current, low dropout voltage, and wide input
voltage range of the ADP5022 LDO extends the battery life of
portable devices. The LDO maintains power supply rejection
greater than 60 dB for frequencies as high as 10 kHz while
operating with a low headroom voltage.
Each regulator in the ADP5022 has a dedicated, independent
enable pin. A high voltage level applied to the enable pin activates
the respective regulator. The default output voltages are factory
programmable and can be set to a wide range of options.
C4
10µF
C5
10µF
C6
1µF
Regulator with 150 mA LDO
V
V
V
600mA
600mA
150mA
OUT1
OUT2
OUT3
Dual 3 MHz, 600 mA Buck
@
@
@
©2009–2010 Analog Devices, Inc. All rights reserved.
L1
C1
COUT_3
Figure 2. Typical PCB Layout
COUT_1
4.7mm
COUT_2
C3
ADP5022
www.analog.com
C4
C2
5.0mm

Related parts for ADP5022ACBZ-6-R7

ADP5022ACBZ-6-R7 Summary of contents

Page 1

FEATURES Input voltage range: 2 5.5 V Tiny 16-ball × WLCSP package Overcurrent and thermal protection Soft start Factory programmable undervoltage lockout on VDDA system supply of either 2 3.9 V Factory ...

Page 2

ADP5022 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Buck1 and Buck2 Specifications................................................. 4 LDO Specifications ...................................................................... 5 Absolute Maximum Ratings............................................................ 6 Thermal Data ................................................................................ 6 Thermal Resistance ...................................................................... 6 ...

Page 3

SPECIFICATIONS VDDA = VIN1 = VIN2 = 3.6 V, VIN3 = (VOUT3 + 0 2.4 V, whichever is greater, VIN3 ≤ VIN1 otherwise noted. Table 1. Parameter INPUT VOLTAGE RANGE System and Buck Input Supplies Voltage ...

Page 4

ADP5022 BUCK1 AND BUCK2 SPECIFICATIONS VDDA = VIN1 = VIN2 = 3.6 V, VIN3 = (VOUT3 + 0 2.4 V, whichever is greater, VIN3 ≤ VIN1 otherwise noted. Table 2. Parameter OPERATING SUPPLY CURRENT Buck1 Only ...

Page 5

LDO SPECIFICATIONS VDDA = VIN1 = VIN2 = 3.6 V, VIN3 = (VOUT3 + 0 2.3 V, whichever is greater, VIN3 ≤ VIN1 μ −40°C to +125°C, unless otherwise noted. J Table 3. Parameter ...

Page 6

ADP5022 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter VDDA, VIN1, VIN2, VIN3, VOUT1, VOUT2, VOUT3, EN1, EN2, EN3, MODE to GND Storage Temperature Range Operating Junction Temperature Range Soldering Conditions Stresses above those listed under Absolute Maximum Ratings may cause permanent ...

Page 7

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Description A1 VOUT3 LDO Output Voltage and Sensing Input. A2 AGND Analog Ground. A3 VIN3 LDO Input Supply (VIN3 ≤ VIN1 = VIN2 = VDDA). A4 VDDA ...

Page 8

ADP5022 TYPICAL PERFORMANCE CHARACTERISTICS VIN1 = VIN2 = VIN3 = VDDA = 5 VOUT1 1 VOUT2 2 VOUT3 3 CH1 2.00V CH2 2.00V M 200µ CH3 2.00V 45.40% Figure 4. ...

Page 9

I (A) OUT Figure 10. Buck2 Load Regulation Across Temperature, VOUT2 = 1.8 V, Auto Mode 1.834 1.824 1.814 1.804 1.794 1.784 1.774 1.764 0 0.1 0.2 ...

Page 10

ADP5022 100 0.001 0.01 I (A) OUT Figure 16. Buck2 Efficiency vs. Load Current, Across Input Voltage, VOUT2 = 1.8 V, PWM Mode 100 ...

Page 11

T VOUT CH1 50.0V CH2 500mA Ω M 4.00µ CH4 2.00V 28.40% Figure 22. Typical Waveforms, VOUT1 = 3 OUT1 T VOUT ...

Page 12

ADP5022 VOUT 1 I OUT 2 CH1 50.0mV CH2 50.0mA Ω M 20.0µs A CH2 CH4 5.00V T 60.000µ Figure 28. Buck1 Response to Load Transient, I VOUT1 = 3.3 V, ...

Page 13

V = 3.3V 2.790 4. 5.0V IN 2.785 V = 5.5V IN 2.780 0 0.02 0.04 0.06 0.08 I (A) OUT Figure 34. LDO Load Regulation Across Input ...

Page 14

ADP5022 T I OUT 2 VOUT 1 CH1 100mV CH2 100mA Ω M 40.0µs A CH2 19.20% Figure 40. LDO Response to Load Transient, I VOUT3 = 2 VIN VOUT ...

Page 15

FREQUENCY (Hz) Figure 46. LDO PSRR Across Output Load, VIN3 = 5.0 V, VOUT3 = 2 –10 –20 –30 –40 ...

Page 16

ADP5022 THEORY OF OPERATION GM ERROR PWM COMP VIN1 I LIMIT PWM/ PSM CONTROL LOW BUCK1 CURRENT SW1 DRIVER AND ANTISHOOT THROUGH PGND1 EN1 ENABLE EN2 CONTROL EN3 VDDA VIN3 POWER MANAGEMENT UNIT The ADP5022 is a micro power management ...

Page 17

Thermal Protection In the event that the junction temperature rises above 150°C, the thermal shutdown circuit turns off the converters and the LDO. Extreme junction temperatures can be the result of high current operation, poor circuit board design, or high ...

Page 18

ADP5022 Enable/Shutdown The bucks start operation with soft start when the EN1 or EN2 pin is toggled from logic low to logic high. Pulling the EN1 or EN2 pin low disables that channel. Short-Circuit Protection The bucks include frequency foldback ...

Page 19

APPLICATIONS INFORMATION BUCK EXTERNAL COMPONENT SELECTION Trade-offs between performance parameters such as efficiency and transient response can be made by varying the choice of external components in the applications circuit, as shown in Figure 1. Inductor The high switching frequency ...

Page 20

ADP5022 The peak-to-peak output voltage ripple for the selected output capacitor and inductor values is calculated using the following equation π RIPPLE × × × × OUT Capacitors ...

Page 21

Input and Output Capacitor Properties Use any good quality ceramic capacitors with the ADP5022 as long as they meet the minimum capacitance and maximum ESR requirements. Ceramic capacitors are manufactured with a variety of dielectrics, each with a different behavior ...

Page 22

ADP5022 PCB LAYOUT GUIDELINES Poor layout can affect ADP5022 performance, causing electro- magnetic interference (EMI) and electromagnetic compatibility (EMC) problems, ground bounce, and voltage losses. Poor layout can also affect regulation and stability. A good layout is implemented using the ...

Page 23

EVALUATION BOARD SCHEMATICS AND ARTWORK 0Ω 0Ω SUGGESTED LAYOUT C2 0603 4.7µF B1 VIN1 SW1 C3 B4 0603 BUCK1 VIN2 VOUT1 4.7µF A4 VDDA PGND1 C1 A3 0402 VIN3 1µF A2 ...

Page 24

ADP5022 Figure 55. Third Layer, Recommended Layout Figure 56. Bottom Layer, Recommended Layout Rev Page ...

Page 25

... VOUT1 = 1.2 V Low VOUT2 = 1.8 V VOUT3 = 2.8 V ADP5022ACBZ-4-R7 VOUT1 = 3.3 V High VOUT2 = 1.8 V VOUT3 = 3.3 V ADP5022ACBZ-6-R7 VOUT1 = 1.0 V Low VOUT2 = 1.8 V VOUT3 = 2 RoHS Compliant Part. 2 For additional voltage options, contact a local sales or distribution representative. Buck1 and Buck2: 3.3 V, 3.0 V, 2.8 V, 2.5 V, 2.3 V, 2.0 V, 1.82 V, 1.8 V, 1.6 V, 1.5 V, 1.3 V, 1.2 V, 1.1 V, 1.0 V, 0.9 V, 0.8 V LDO: 3 ...

Page 26

ADP5022 NOTES Rev Page ...

Page 27

NOTES Rev Page ADP5022 ...

Page 28

ADP5022 NOTES ©2009–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08253-0-10/10(C) Rev Page ...

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