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FAN53555BUC09X

Description
voltage regulators - switching regulators 5 A, 2.4 mhz, digitally programmable tinybuck regulator
CategoryPower/power management    The power supply circuit   
File Size2MB,27 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Environmental Compliance
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FAN53555BUC09X Overview

voltage regulators - switching regulators 5 A, 2.4 mhz, digitally programmable tinybuck regulator

FAN53555BUC09X Parametric

Parameter NameAttribute value
Brand NameFairchild Semiconductor
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerFairchild
Parts packaging codeCSP
package instructionVFBGA, BGA20,4X5,16
Contacts20
Manufacturer packaging code20BALL WLCSP, 4X5 ARRAY, 0.4MM PITCH, 250UM BALL
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresOPERATES IN ADJUSTABLE MODE FROM 0.603V TO 1.411V; ALSO OPERATES IN PFM MODE
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage2.5 V
Nominal input voltage5 V
JESD-30 codeR-PBGA-B20
JESD-609 codee1
length2.015 mm
Humidity sensitivity level1
Number of functions1
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current5 A
Package body materialPLASTIC/EPOXY
encapsulated codeVFBGA
Encapsulate equivalent codeBGA20,4X5,16
Package shapeRECTANGULAR
Package formGRID ARRAY, VERY THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.625 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency2750 kHz
Temperature levelINDUSTRIAL
Terminal surfaceTin/Silver/Copper (Sn/Ag/Cu)
Terminal formBALL
Terminal pitch0.4 mm
Terminal locationBOTTOM
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.615 mm
Base Number Matches1
FAN53555 — 5 A, 2.4 MHz, Digitally Programmable TinyBuck™ Regulator
March 2014
FAN53555
5 A, 2.4 MHz, Digitally Programmable TinyBuck
®
Regulator
Features
Fixed-Frequency Operation: 2.4 MHz
Best-in-Class Load Transient
Continuous Output Current Capability: 5 A
Pulse Current Capability: 6.5 A (05 Option)
2.5 V to 5.5 V Input Voltage Range
Digitally Programmable Output Voltage:
-
00/01/03/05/08/18 Options: 0.6-1.23 V in 10 mV Steps
-
04/042/09/ Options: 0.603-1.411 V in 12.826 mV Steps
-
23 Option: 0.60-1.3875 V in 12.5 mV Steps
-
24 Option: 0.603-1.420 V in 12.967 mV Steps
-
13 Option: 0.8-1.43 V in 10 mV Steps
Programmable Slew Rate for Voltage Transitions
I
2
C-Compatible Interface Up to 3.4 Mbps
PFM Mode for High Efficiency in Light Load
Quiescent Current in PFM Mode: 60 µA (Typical)
Internal Soft-Start
Input Under-Voltage Lockout (UVLO)
Thermal Shutdown and Overload Protection
20-Bump Wafer-Level Chip Scale Package (WLCSP)
Description
The FAN53555 is a step-down switching voltage regulator
that delivers a digitally programmable output from an input
voltage supply of 2.5 V to 5.5 V. The output voltage is
programmed through an I
2
C interface capable of operating up
to 3.4 MHz.
Using a proprietary architecture with synchronous
rectification, the FAN53555 is capable of delivering 5 A
continuous at over 80% efficiency, while maintaining over
80% efficiency at load currents as low as 10 mA. Pulse
currents as high as 6.5 A can be supported by the 05 option.
The regulator operates at a nominal fixed frequency of
2.4 MHz, which reduces the value of the external components
to 330 nH for the output induction and as low as 20 µF for the
output capacitor. Additional output capacitance can be added
to improve regulation during load transients without affecting
stability. Inductance up to 1.2 µH may be used with additional
output capacitance.
At moderate and light loads, Pulse Frequency Modulation
(PFM) is used to operate in Power-Save Mode with a typical
quiescent current of 60 µA. Even with such a low quiescent
current, the part exhibits excellent transient response during
large load swings. At higher loads, the system automatically
switches to fixed-frequency control, operating at 2.4 MHz. In
Shutdown Mode, the supply current drops below 1 µA,
reducing power consumption. PFM Mode can be disabled if
constant frequency is desired. The FAN53555 is available in a
20-bump, 1.6 x 2 mm, WLCSP.
PVIN
EN
SDA
SCL
VSEL
FAN53555
C
IN1
VOUT
SW
GND
AGND
L1
Applications
Application, Graphic, and DSP Processors
-
ARM™, Krait™, OMAP™, NovaThor™, ARMADA™
Hard Disk Drives
Tablets, Netbooks, Ultra-Mobile PCs
Smart Phones
Gaming Devices
C
IN
VDD
C
OUT
Core
Processor
(System Load)
GND
Figure 1. Typical Application
All trademarks are the property of their respective owners.
© 2010 Fairchild Semiconductor Corporation
FAN53555 • Rev. 1.1.8
www.fairchildsemi.com

FAN53555BUC09X Related Products

FAN53555BUC09X FAN53555UC08X
Description voltage regulators - switching regulators 5 A, 2.4 mhz, digitally programmable tinybuck regulator voltage regulators - switching regulators 5A, 2.4 mhz, digtly prgrmmable tinybuck
Brand Name Fairchild Semiconductor Fairchild Semiconductor
Is it lead-free? Lead free Lead free
Is it Rohs certified? conform to conform to
Maker Fairchild Fairchild
Parts packaging code CSP CSP
package instruction VFBGA, BGA20,4X5,16 VFBGA, BGA20,4X5,16
Contacts 20 20
Manufacturer packaging code 20BALL WLCSP, 4X5 ARRAY, 0.4MM PITCH, 250UM BALL 20BALL WLCSP, 4X5 ARRAY, 0.4MM PITCH, 250UM BALL
Reach Compliance Code compliant compliant
ECCN code EAR99 EAR99
Other features OPERATES IN ADJUSTABLE MODE FROM 0.603V TO 1.411V; ALSO OPERATES IN PFM MODE OPERATES IN ADJUSTABLE MODE FROM 0.6V TO 1.23V; ALSO OPERATES IN PFM MODE
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR
control mode VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 5.5 V 5.5 V
Minimum input voltage 2.5 V 2.5 V
Nominal input voltage 5 V 5 V
JESD-30 code R-PBGA-B20 R-PBGA-B20
JESD-609 code e1 e1
length 2.015 mm 2 mm
Humidity sensitivity level 1 1
Number of functions 1 1
Number of terminals 20 20
Maximum operating temperature 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C
Maximum output current 5 A 5 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code VFBGA VFBGA
Encapsulate equivalent code BGA20,4X5,16 BGA20,4X5,16
Package shape RECTANGULAR RECTANGULAR
Package form GRID ARRAY, VERY THIN PROFILE, FINE PITCH GRID ARRAY, VERY THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius) 260 260
Certification status Not Qualified Not Qualified
Maximum seat height 0.625 mm 0.625 mm
surface mount YES YES
Switch configuration BUCK BUCK
Maximum switching frequency 2750 kHz 2750 kHz
Temperature level INDUSTRIAL INDUSTRIAL
Terminal surface Tin/Silver/Copper (Sn/Ag/Cu) Tin/Silver/Copper (Sn/Ag/Cu)
Terminal form BALL BALL
Terminal pitch 0.4 mm 0.4 mm
Terminal location BOTTOM BOTTOM
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED
width 1.615 mm 1.6 mm
Base Number Matches 1 1
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