SKY87020-11 Datasheet, PDF (1/2 Pages) Skyworks Solutions Inc. – Power Management IC for SkyOne Ultra 2.0 Systems

PRODUCT SUMMARY
SKY87020-11: Power Management IC for SkyOne^® Ultra 2.0
Systems
Applications
 Smartphones
 3G/4G multimode front-end modules
 Tablets, eBook readers
 Wireless data cards
Features
 Input voltage range: 2.5 V to 5.5 V
 High-efficiency converter:
 Output voltage range optimized for SkyOne Ultra 2.0 PA
operation
 4.5 V, 3 mA PA bias supply output:
 IC disable VIN bypass
 Over-temperature and short-circuit protection
 Small footprint CSP (16-ball, 2.005 mm  2.005 mm) package
(MSL1, 260 C per JEDEC J-STD-020)
Skyworks Green^TM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green^TM, document number
SQ04–0074.
VIN
C1
4.7 µF
GND
C5
0.1µF
L1
1.5 µH
IN
SW
OUT
C+
PGND
IC Enable Input
IC Reference Control Input
4.5 V Bias Supply Output
C4
0.47 µF
C−
SKY87020
PGND
PGND
EN
VREF
4V5
AGND
GND GND GND
VOUT
C3
0.1µF
C6
0.1 µF
C2
1.0 µF
PGND
GND
PGND
GND
GND
203882A-001
Figure 1. Typical Application Circuit (Programmable Output)
Description
The SKY87020-11 is a high-efficiency RF front-end power
management IC for APT RF power amplifier (PA) applications in
portable battery powered devices. This IC includes a
high-efficiency DC-DC voltage converter with a 4.5 V reference
supply to provide a user-programmable RF PA APT supply for a
2.5 V to 5.5 V input range.
The SKY87020-11 also provides an additional 4.5 V bias supply
for RF PA operation. This bias voltage output can supply load
currents up to 3 mA and is available whenever the device is
enabled. When the device is disabled, the VIN supply is bypassed
to the 4V5 output.
The SKY87020-11 is available in a 16-pin, 2.005 mm 
2.005 mm Chip Scale Package (CSP) package.
A typical application circuit is shown in Figure 1.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
203882A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 12, 2016
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