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FAN53525 PDF даташит

Спецификация FAN53525 изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Digitally Programmable TinyBuck Regulator».

Детали детали

Номер произв FAN53525
Описание Digitally Programmable TinyBuck Regulator
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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FAN53525 Даташит, Описание, Даташиты
July 2014
FAN53525
3.0A, 2.4MHz, Digitally Programmable TinyBuck® Regulator
Features
Fixed-Frequency Operation: 2.4 MHz
Best-in-Class Load Transient
Continuous Output Current Capability: 3.0 A
2.5 V to 5.5 V Input Voltage Range
Digitally Programmable Output Voltage:
- 0.600 V to 1.39375 V in 6.25 mV Steps
Programmable Slew Rate for Voltage Transitions
I2C-Compatible Interface Up to 3.4 Mbps
PFM Mode for High Efficiency in Light Load
Quiescent Current in PFM Mode: 50 µA (Typical)
Input Under-Voltage Lockout (UVLO)
Thermal Shutdown and Overload Protection
15-Bump Wafer-Level Chip Scale Package (WLCSP)
Applications
Application, Graphic, and DSP Processors
- ARM™, Tegra™, OMAP™, NovaThor™,
ARMADA™, Krait™, etc.
Hard Disk Drives, LPDDR3
Tablets, Netbooks, Ultra-Mobile PCs
Smart Phones
Gaming Devices
Description
The FAN53525 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 I2C interface capable of operating
up to 3.4 MHz.
Using a proprietary architecture with synchronous
rectification, the FAN53525 is capable of delivering 3.0 A
continuous at over 80% efficiency, maintaining that efficiency
at load currents as low as 10 mA. 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
inductor 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,
allowing inductance up to 1.2 µH to be used.
At moderate and light loads, Pulse Frequency Modulation
(PFM) is used to operate in Power-Save Mode with a typical
quiescent current of 50 µA at room temperature. 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 fixed frequency is desired. The FAN53525
is available in a 15-bump, 1.310 mm x 2.015 mm, 0.4 mm
ball pitch WLCSP.
All trademarks are the property of their respective owners.
Figure 1. Typical Application
© 2012 Fairchild Semiconductor Corporation
FAN53525 • Rev. 1.0.1
www.fairchildsemi.com









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FAN53525 Даташит, Описание, Даташиты
Ordering Information
Power-Up Defaults
Part Number
VSEL0 VSEL1
DVS Range
/ Step Size
Max. RMS
Current
Temperature
Range
Package
FAN53525UC96X 1.20
1.225
0.600 V to
1.39375 V / 6.25 mV
3.0 A
-40 to 85°C WLCSP
FAN53525UC48X 0.9
1.225
0.600 V to
1.39375 V / 6.25 mV
3.0 A
-40 to 85°C WLCSP
Packing
Method
Tape & Reel
Tape & Reel
Recommended External Components
Table 1. Recommended External Components for 3.0 A Maximum Load Current
Component
Description
Vendor
Parameter
L1
COUT
CIN
470 or 330 nH, 2016 Case Size
22 F, 6.3 V, X5R, 0603
1 Piece; 4.7 F, 10 V, X5R, 0603
See Table 2
C1608X5R0J226M (TDK)
C
C1608X5R1A475K(TDK)
C
Typ.
22
4.7
Unit
µF
Table 2. Recommended Inductors
Manufacturer
Part#
L (nH) DCR (mTyp.) IMAXDC(1)
Toko
DFR201612 C-R33N
330
23
4.2
Toko
DFE201612 C-R47N
470
40
3.2
Cyntek
PIFE20161B-R47MS-39
470
30
3.1
SEMCO
CIGT201610UMR47MNE
470
30
4.0
SEMCO
CIGT201210UMR47MNE
470
33
3.0
Note:
1. IMAXDC is the lesser current to produce 40°C temperature rise or 30% inductance roll-off.
Component Dimensions
LW
H
2.0 1.6
2.0 1.6
2.0 1.6
2.0 1.6
2.0 1.2
1.2
1.2
1.2
0.9
0.9
© 2012 Fairchild Semiconductor Corporation
FAN53525 • Rev. 1.0.1
2
www.fairchildsemi.com









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FAN53525 Даташит, Описание, Даташиты
Physical Dimensions
0.03 C
2X
E
BALL A1
INDEX
AREA
A
B
F
D
TOP VIEW
0.03 C
2X
0.80
0.40
A1
1.60 0.40
(Ø0.200)
Cu Pad
(Ø0.300)
Solder Mask
Opening
RECOMMENDED LAND PATTERN
(NSMD TYPE)
0.05 C
0.06 C
0.625
0.547
0.378±0.018
0.208±0.021
C Seating Plane
D SIDE VIEWS
0.40
0.80
Ø0.260±0.02
15X
0.40
1.60
E
D
C
B
A
1 23
0.005 C A B
(Y)±0.018
F
(X)±0.018
BOTTOM VIEW
NOTES
A. NO JEDEC REGISTRATION APPLIES.
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCE PER
ASME Y14.5 - 2009.
D. DATUM C IS DEFINED BY THE
SPHERICAL CROWNS OF THE BALLS.
E. PACKAGE NOMINAL HEIGHT IS
586 ± 39 MICRONS (547-625 MICRONS).
F. FOR DIMENSIONS D,E,X, AND Y SEE
PRODUCT DATASHEET.
G. DRAWING FILNAME: MKT-UC015AB Rev1
Figure 39. 15-Ball, Wafer-Level Chip-Scale Package (WLCSP), 3x5 Array, 0.4 mm Pitch, 250 µm Ball
Product-Specific Dimensions
DE
2.015 ±0.03 mm
1.310 ±0.03 mm
X
0.255 mm
Y
0.2075 mm
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without
notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most
recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty
therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/dwg/UC/UC015AB.pdf.
© 2012 Fairchild Semiconductor Corporation
FAN53525 • Rev. 1.0.1
21
www.fairchildsemi.com










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Номер в каталогеОписаниеПроизводители
FAN53525Digitally Programmable TinyBuck RegulatorFairchild Semiconductor
Fairchild Semiconductor

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