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Analog Devices - High Performance RF LDO

Numéro de référence ADP5030
Description High Performance RF LDO
Fabricant Analog Devices 
Logo Analog Devices 





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ADP5030 fiche technique
Dual, 200 mA, High Performance
RF LDO with Load Switch
ADP5030
FEATURES
Input voltage range: 2.5 V to 5.5 V
Dual, 200 mA low dropout voltage regulators
Tiny, 16-ball, 1.6 mm × 1.6 mm WLCSP
Initial accuracy: ±0.7%
Stable with 1 μF ceramic output capacitors
Overcurrent and thermal protection
High PSRR
76 dB up to 1 kHz
70 dB at 10 kHz
60 dB at 100 kHz
40 dB at 1 MHz
Low output noise
27 μV rms typical output noise at VOUTx = 1.2 V
50 μV rms typical output noise at VOUTx = 2.8 V
Excellent transient response
Low dropout voltage: 175 mV at 200 mA load
60 μA typical ground current at no load, both LDOs enabled
Guaranteed 200 mA output current per regulator
Load switch with low RDSON of 100 mΩ at 1.8 V
High-to-low voltage and low-to-high voltage level shifting logic
−40°C to +125°C junction temperature
APPLICATIONS
RF subsystems
GPS devices
GENERAL DESCRIPTION
The ADP5030 combines two high performance, low dropout
(LDO) voltage regulators, a low RDSON load switch, and level
shifting logic in a tiny, 16-ball, 1.6 mm × 1.6 mm WLCSP to
meet demanding performance and board space requirements.
The low quiescent current, low dropout voltage, and wide input
voltage range of the ADP5030 LDOs extend the battery life of
portable devices. The ADP5030 LDOs maintain power supply
rejection greater than 60 dB for frequencies as high as 100 kHz
while operating with a low headroom voltage.
The ADP5030 can be configured in two different activation
modes for LDO2 and the load switch; these modes are selected
by a dedicated pin (MSEL).
FUNCTIONAL BLOCK DIAGRAM
POWER
SUPPLY AND
PROCESSOR
VDD
C1
1µF
GPO4_1V8
VIN3
VIN3
VIN1
EN1
MSEL
V1_8DIG
GPO2_1V8
GPI0_1V8
GPO0_1V8
GPO1_1V8
VIN2
C5
2.2µF
EN2
GPOUT1
GPIN2
GPIN3
ADP5030
PERIPHERAL
MODULE
LDO1
LDO2
VOUT1
VOUT2
C2
1µF
C3
1µF
VBB
VAUX
LOAD
SWITCH
VIN2
VOUT3
VIO
C4
0.1µF
VIN3
GPIN1
VIN3
GPOUT2
GPOUT3
GPO0_1V2
GPI0_1V2
GPI1_1V2
1.8V INPUT/OUTPUT
SYSTEM
GND
Figure 1.
1.2V INPUT/OUTPUT
SYSTEM
Rev. B
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.

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