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  ON Semiconductor Electronic Components Datasheet  

FAN48623 Datasheet

Synchronous TinyBoost Regulator

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FAN48623 — 2500 mA, Synchronous TinyBoost®
Regulator with Bypass Mode
Features
Maximum Continuous Load Current: 2500 mA
at VIN of 2.5 V Boosting VOUT to 3.3 V
Maximum Pulse Load Current of 3.5 A for GSM PAs
(1 Slot) and PMIC support simultaneously, VIN=3.1 V,
VOUT=3.4 V
Up to 97% Efficient
4 External Components: 2520 case 0.47 µH Inductor
and 0603 Case Size Input and Output Capacitors
Input Voltage Range: 2.5 V to 5.5 V
Fixed Output Voltage Options: 3.0 V to 5.0 V
True Bypass Operation w hen VIN > Target VOUT
Integrated Synchronous Rectifier
True Load Disconnect
Forced Bypass Mode
VSEL Control to Optimize Target VOUT
Short-Circuit Protection (SCP)
Low Operating Quiescent Current
16-Bump, 1.81 mm x 1.81 mm, 0.4 mm Pitch, WLCSP
Applications
Boost for Low -Voltage Li-ion Batteries, Brow nout
Prevention, System PMIC LDOs Supplies, and
2G/3G/4G RF PA Supplies
Smart Phones, Tablets, Portable Devices
Description
The FAN48623 allow s systems to take advantage of new
battery chemistries that can supply significant energy w hen
the battery voltage is low er than the required voltage for
system pow er ICs. By combining built-in pow er transistors,
synchronous rectification, and low supply current, this IC
provides a compact solution for systems using advanced Li-
Ion battery chemistries.
The FAN48623 is a boost regulator designed to provide a
minimum output voltage from a single-cell Li-Ion battery,
even w hen the battery voltage is below system minimum.
The output voltage regulation is guaranteed up to a
maximum load current of 2500 mA. The regulator transitions
smoothly betw een Bypass and normal Boost Mode. The
device can be forced into Bypass Mode to reduce quiescent
current.
The FAN48623 is available in a 16-bump, 0.4 mm pitch,
Wafer-Level Chip-Scale Package (WLCSP).
+
Battery
0.47µH
VIN
CIN
10µF
SW
VSEL
EN
BYP
FAN48623
VOUT
COUT
2x22µF
PGND
AGND
PG
SYSTEM
LOAD
Figure 1. Typical Application
Ordering Information
Part Number
FA N48623UC3 15X
Output
Voltage(1)
VSEL0 / VSEL1
Operating
Temperature
3.150 / 3.330
Package
Packing
Device
Marking
JK
FAN48623UC32JX 3.20 / 3.413
JD
FAN48623UC33X 3.300 / 3.489
JE
FA N48623UC3 5X
3.5 / 3.7
-40°C to 85°C
16-Ball, 4x4 Array, 0.4 mm Pitch, 250 µm Ball,
Wafer-Level Chip-Scale Package (WLCSP)
Tape &
Reel
JF
FAN48623UC36FX 3.64/ 3.709
JG
FAN48623UC50X 5.000 / 5.286
JL
FAN48623UC50GX 5.000 / 5.190
JM
Note :
1. Other output voltages are available on request. Please contact a ON Semiconductor Semiconductor representative.
© 2013 Semiconductor Components Industries, LLC
October-2017,Rev . 2
Publication Order Number:
FAN48623/D


  ON Semiconductor Electronic Components Datasheet  

FAN48623 Datasheet

Synchronous TinyBoost Regulator

No Preview Available !

Typical Application
VIN
CIN
SW
GND
Q3B Q3A
Q3
BYPASS
CONTROL
Q1B Q1A
Q2 Q1
Synchronous
Rectifier
Control
VSEL
EN
BYP
PG
MODULATOR
LOGIC
AND CONTROL
Figure 2. Block Diagram
VOUT
COUT
Table 1. Recommended Components
Component
Description
L1
0.47 µH, 20%, 5.3 A, 2520
CIN
COUT
10 µF, 20%, 10 V, X5R, 0603
2 x 22 µF, 20%, 10 V, X5R, 0603
Vendor
Toko: DFE252010P- R47M
TDK: C1608X5R1A106M
TDK: C1608X5R1A226M080A C
Parameter
L
DCR (Series R)
C
C
Typ. Unit
0.47 µH
27 m
10 µF
44 µF
www.onsemi.com
2


Part Number FAN48623
Description Synchronous TinyBoost Regulator
Maker ON Semiconductor
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