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FAN48630 PDF даташит

Спецификация FAN48630 изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Synchronous TinyBoost Regulator».

Детали детали

Номер произв FAN48630
Описание Synchronous TinyBoost Regulator
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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FAN48630 Даташит, Описание, Даташиты
November 2012
FAN48630 — 2.5 MHz, 1500 mA, Synchronous TinyBoost
Regulator with Bypass Mode
Features
Few External Components: 0.47 µH Inductor and
0603 Case Size Input and Output Capacitors
Input Voltage Range: 2.35 V to 5.5 V
Fixed Output Voltage Options: 3.0 V to 5.0 V
Maximum Continuous Load Current: 1500 mA
at VIN of 2.6 V Boosting VOUT to 3.5 V
Up to 96% Efficient
True Bypass Operation when VIN > Target VOUT
Internal Synchronous Rectifier
Soft-Start with True Load Disconnect
Forced Bypass Mode
VSEL Control to Optimize Target VOUT
Short-Circuit Protection
Low Operating Quiescent Current
16-Bump, 0.4 mm Pitch WLCSP
Applications
Boost for Low-Voltage Li-ion Batteries, Brownout
Prevention, Boosted Audio, USB OTG, and LTE / 3G
RF Power
Cell Phones, Smart Phones, Portable Instruments
Description
The FAN48630 allows systems to take advantage of new
battery chemistries that can supply significant energy when
the battery voltage is lower than the required voltage for
system power ICs. By combining built-in power transistors,
synchronous rectification, and low supply current; this IC
provides a compact solution for systems using advanced
Li-Ion battery chemistries.
The FAN48630 is a boost regulator designed to provide a
minimum output voltage (VOUT(MIN)) from a single-cell Li-Ion
battery, even when the battery voltage is below system
minimum. Output voltage regulation is guaranteed to a
maximum load current of 1500 mA. Quiescent current in
Shutdown Mode is less than 3 µA, which maximizes battery
life. The regulator transitions smoothly between Bypass and
normal Boost Mode. The device can be forced into Bypass
Mode to reduce quiescent current.
The FAN48630 is available in a 16-bump, 0.4 mm pitch,
Wafer-Level Chip-Scale Package (WLCSP).
Figure 1. Typical Application
Ordering Information
Part Number
Output Voltage(1)
VSEL0 / VSEL1
Soft-
Start
Forced
Bypass
Operating
Temperature
Package(2)
FAN48630UC315X
FAN48630UC33X
FAN48630UC35X
FAN48630UC37AX
FAN48630UC45X
FAN48630UC50X
3.15 / 3.33
3.30 / 3.49
3.50 / 3.70
3.70 / 3.77
4.50 / 4.76
5.00 / 5.29
FAST
FAST
FAST
FAST
SLOW
SLOW
Low IQ
Low IQ
Low IQ
Low IQ
OCP On
OCP On
-40°C to 85°C
16-Ball, 4x4 Array,
0.4 mm Pitch,
250 µm Ball,
Wafer-Level Chip-
Scale Package
(WLCSP)
Notes:
1. Other output voltages are available on request. Please contact a Fairchild Semiconductor representative.
2. Includes backside laminate.
Packing
Tape and Reel
© 2011 Fairchild Semiconductor Corporation
FAN48630 • Rev. 1.0.1
www.fairchildsemi.com









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FAN48630 Даташит, Описание, Даташиты
Block Diagram
VIN
CIN
SW
GND
VSEL
EN
BYP
PG
Q3B Q3A
Q3
BYPASS
CONTROL
Q1B Q1A
Q2 Q1
Synchronous
Rectifier
Control
MODULATOR
LOGIC
AND CONTROL
VOUT
COUT
Figure 2. Block Diagram
Table 1. Recommended Components
Component
Description
L1 0.47 µH, 30%
CIN
COUT
4.7 µF, 10%, 6.3 V, X5R,
0603
2 x 10 µF, 20%, 10 V, X5R,
0603
Vendor
Toko: DFE201612C
DFR201612C
Cyntec: PIFE20161B
Murata: GRM188R60J475K
TDK: C1608X5R0J475K
TDK: C1608X5R1A106M
Parameter
L
DCR (Series R)
C
Typ.
0.47
40
4.7
C 20
Unit
µH
m
µF
µF
© 2011 Fairchild Semiconductor Corporation
FAN48630 • Rev. 1.0.1
2
www.fairchildsemi.com









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FAN48630 Даташит, Описание, Даташиты
Pin Configuration
EN PG
VIN
A1 A2 A3 A4
VSEL AGND
VOUT
B1 B2 B3 B4
BYP
C1 C2
SW
C3 C4
AGND
PGND
D1 D2 D3 D4
Figure 3. Top Through View (Bumps Down)
Figure 4. Bottom View (Bumps Up)
Pin Definitions
Pin #
A1
Name
EN
A2 PG
A3–A4
B1
B2, C2
D1
B3–B4
VIN
VSEL
AGND
VOUT
C1 BYP
C3–C4
SW
D2–D4
PGND
Description
Enable. When this pin is HIGH, the circuit is enabled.
Power Good. This is an open-drain output. PG is actively pulled LOW if output falls out of
regulation due to overload or if thermal protection threshold is exceeded.
Input Voltage. Connect to Li-Ion battery input power source.
Output Voltage Select. When boost is running, this pin can be used to select output voltage.
Analog Ground. This is the signal ground reference for the IC. All voltage levels are measured
with respect to this pin.
Output Voltage. Place COUT as close as possible to the device.
Bypass. This pin can be used to activate Forced Bypass Mode. When this pin is LOW, the
bypass switches (Q3 and Q1) are turned on and the IC is otherwise inactive.
Switching Node. Connect to inductor.
Power Ground. This is the power return for the IC. The COUT bypass capacitor should be
returned with the shortest path possible to these pins.
© 2011 Fairchild Semiconductor Corporation
FAN48630 • Rev. 1.0.1
3
www.fairchildsemi.com










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