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  ON Semiconductor Electronic Components Datasheet  

FAN48632 Datasheet

Pulsed-Load Synchronous Regulator

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Pulsed-Load Synchronous
Regulator with Bypass Mode
for GSM PA Supply,
TINYBOOST), 2.5 MHz, 2.0 A
FAN48632
Description
The FAN48632 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 FAN48632 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. In boost mode,
output voltage regulation is guaranteed to a maximum load current of
1.5 A continuous and 2.0 A pulsed. Quiescent current in Shutdown
Mode is less than 3 mA, 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 FAN48632 is available in a 16−bump, 0.4 mm pitch,
Wafer−Level Chip−Scale Package (WLCSP).
Features
Few External Components: 0.47 mH Inductor and 0603 Case Size
Input and Output Capacitors
Input Voltage Range: 2.35 V to 5.5 V
Fixed Output Voltage: 3.3 V to 3.5 V
Maximum Continuous Load Current of: 1.5 A at VIN of 2.6 V
Maximum Pulsed Load Current of: 2.0 A for GSM 217 Hz
Repetition Rate, boosting VOUT to 3.3 V or 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
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
Boost for Low−Voltage Li−ion Batteries, Brownout Prevention,
Supply GSM RF PA
Cell Phones, Smart Phones, Tablets
www.onsemi.com
WLCSP16 1.78x1.78x0.586
CASE 567SY
MARKING DIAGRAM
Pin−1
Mark
1 2 KK
X YZ
12
= Alphanumeric Device Marking
KK = Lot Run Code
X
= Alphabetical Year Code
Y
= 2−weeks Date Code
Z
= Assembly Plant Code
ORDERING INFORMATION
See detailed ordering and shipping information on page 2 of
this data sheet.
+
Battery
0.47 mH
VIN
CIN
10mF
SW
VSEL
EN
BYP
FAN48632
VOUT
COUT
40 mF
PGND
AGND
PG
SYSTEM
LO AD
Figure 1. Typical Application
© Semiconductor Components Industries, LLC, 2013
1
July, 2021 − Rev. 2
Publication Order Number:
FAN48632/D


  ON Semiconductor Electronic Components Datasheet  

FAN48632 Datasheet

Pulsed-Load Synchronous Regulator

No Preview Available !

FAN48632
Table 1. ORDERING INFORMATION
Part Number
FAN48632UC33X
FAN48632BUC33X
(Note 1)
Output Voltage
VSELO/VSEL1
3.30 / 3.49
3.30 / 3.49
Soft −
Start
FAST
FAST
Forced
Bypass
Low IQ
Low IQ
Operating
Temperature
−40 to 85°C
Package
Shipping
16−Ball, 4x4 Array, 0.4 mm 3000 / Tape &
Pitch, 250 mm Ball,
Reel
Wafer−Level Chip−Scale
Package (WLCSP)
FAN48632UC35X
3.50 / 3.70
FAST
Low IQ
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
1. The FAN48632BUC33X includes backside lamination.
TYPICAL APPLICATION
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 2. RECOMMENDED COMPONENTS
Component
L1
Description
0.47 mH, 30%
CIN
COUT
10 mF, 10%, 10 V, X5R, 0603
2 x 22 mF, 20%, 6.3 V, X5R, 0603
Vendor
Toko: DFE201612C
DFR201612C
Cyntec: PIFE20161B
TDK: C1608X5R1A106K
TDK: C1608X5R0J226M
Parameter Typ. Unit
L
0.47 mH
DCR (Series R) 40 mW
C
10
mF
C
44
mF
www.onsemi.com
2


Part Number FAN48632
Description Pulsed-Load Synchronous Regulator
Maker ON Semiconductor
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FAN48632 Datasheet PDF






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