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MagnaChip - 800mA Buck Converter

Numéro de référence MAP7154
Description 800mA Buck Converter
Fabricant MagnaChip 
Logo MagnaChip 





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MAP7154 fiche technique
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Datasheet Version 1.0
Datasheet MAP7154
6MHz, 800mABuck Converter for RFPA
General Description
The MAP7154 is synchronous buck converter for 3G,
3.5G and 4G RFPA (RF Power Amplifier).
The MAP7154 can operate at 6MHz switching
frequency and has 2.7V to 5.5V input voltage range,
800mA output current capability.
The MAP7154 has three output modes. In Seep
mode, output regulation is not required and MAP7154
may be entering in Sleep mode by setting VREF
nominally to 100mV, also very low IQ operation. In
Buck mode, output voltage can be programmed from
0.4V to 3.50V in proportion to VREF input voltage
ranged from 0.16V to 1.40V. Output voltage is the
same with input voltage in bypass mode. Bypass
mode reduces the voltage drop to less than 60mV.
These features enable RFPA to operate at higher
power efficiency saving its output power.
The MAP7154 has the protections, input under voltage
lockout, thermal shutdown and over current limit.
The MAP7154 is available in 1.32mm x 1.27mm
0.40mm pitch, 9 bumps WLCSP package
Features
2.7V to 5.5V input voltage range
0.4V to 3.50V output voltage in Buck mode
Low drop output voltage in Bypass mode
800mA output current
6MHz switching frequency
Up to efficiency : 96%
Soft-Start : 50us
Quiescent current in sleep mode :Typ.70uA
Shutdown current : Typ. 1uA
100% max duty
Fast load transient
Protections : Current limit, Thermal Shutdown
Package : 1.32mm x 1.27mm, 0.40mm-pitch,
9 bumps, WLCSP package
Applications
Mobile phones
Digital cameras
USB devices
Ordering Information
Part Number
MAP7154WCRH
Top
Marking
54LLL
Ambient
Temperature Range
-40to +85
Package
1.32mmX1.27mm, 0.40mm pitch, 9 bumps WLCSP
RoHS Status
Halogen Free
Typical Application
MAP7154
VIN `
VIN SW
C1
EN
VREF
BYP
FB
SGND
PGND
L1
VOUT
C2
Aug. 2013

PagesPages 14
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