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RF Micro Devices - POWER MANAGEMENT IC

Numéro de référence RF6280
Description POWER MANAGEMENT IC
Fabricant RF Micro Devices 
Logo RF Micro Devices 





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RF6280 fiche technique
Preliminary
RF6280
POWER MANAGEMENT IC
Package Style: 15-Bump WLCSP, 4x4 Array, 2mmx2mm
Features
„ Peak Efficiency Up To 96%
„ High Efficiency Over Various
Loads
„ Transient Response <10μs
„ 650mA Current Capability
„ Variable Output Voltage (0V
to VBATT)
„ 2.5MHz PWM Switching Fre-
quency
„ Automatic Bypass Mode
„ Over Temperature Shutdown
„ Current Limit
„ Analog Bias Control (Auto-
matic and Buffer)
„ Three Individual Fast Tran-
sient 2.85V LDOs
„ Controls up to 3 UMTS PAs
„ Small, Wafer-Level, Chip-
Scale Package
Applications
„ W-CDMA Handsets
Functional Block Diagram
Product Description
The RF6280 is a multi-functional Power Management IC which is used in conjunc-
tion with power amplifiers and designed to be used in 3V handheld systems. The
RF6280 consists of a Pulse Width Modulated (PWM) voltage mode DC-DC con-
verter, three 2.85V LDOs, and analog bias control circuit to adjust the PA bias. The
DC-DC Converter is a buck converter that provides high efficiency over a wide out-
put voltage range with minimal ripple. It has a fast response to load and line tran-
sients, and fast response to programmed (VSET) voltage changes. The converter
includes an auto-bypass function which allows the handset to operate at lower bat-
tery voltage while helping maintain PA linearity at maximum output power. The con-
verter output voltage is set by a variable control voltage, VSET. The RF6280 has
three individual LDOs which are enabled by a digital two bit logic signal. The three
LDO outputs are used for band select in tri-band W-CDMA handsets.
Ordering Information
RF6280
Power Management IC
RF6280PCBA-41X Fully Assembled Evaluation Board
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
9GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MEMS
LDMOS
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
Rev A2 DS090304
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
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