To learn more about ON Semiconductor, please visit our website at
www.onsemi.com
Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers
will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor
product management systems do not have the ability to manage part nomenclature that utilizes an underscore
(_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain
device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated
device numbers. The most current and up-to-date ordering information can be found at
www.onsemi.com.
Please
email any questions regarding the system integration to
Fairchild_questions@onsemi.com.
ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number
of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right
to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON
Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor
is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
FAN48632 — 2.5 MHz, 2.0 A Pulsed-Load Synchronous TinyBoost™ Regulator with Bypass Mode for GSM PA Supply
April 2014
FAN48632
2.5 MHz, 2.0 A Pulsed-Load Synchronous TinyBoost™
Regulator with Bypass Mode for GSM PA Supply
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 : 3.3 V, 3.5 V
Maximum Continuous Load Current of: 1.5 A
at V
IN
of 2.6 V
Maximum Pulsed Load current :of 2.0 A for GSM 217 Hz
repetition rate ,boosting V
OUT
to 3.3 V or 3.5 V
Up to 96% Efficient
True Bypass Operation when V
IN
> Target V
OUT
Internal Synchronous Rectifier
Soft-Start with True Load Disconnect
Forced Bypass Mode
V
SEL
Control to Optimize Target V
OUT
Short-Circuit Protection
Low Operating Quiescent Current
16-Bump, 0.4 mm Pitch WLCSP
Battery
+
L1
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 (V
OUT(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 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 FAN48632 is available in a 16-bump, 0.4 mm pitch,
Wafer-Level Chip-Scale Package (WLCSP).
VIN
C
IN
10F
VOUT
C
OUT
40F
SYSTEM
LOAD
Applications
Boost for Low-Voltage Li-ion Batteries, Brownout
Prevention, Supply GSM RF PA.
Cell Phones, Smart Phones, Tablets
0.47H
SW
VSEL
EN
BYP
FAN48632
PGND
AGND
PG
Figure 1. Typical Application
Ordering Information
Part Number
FAN48632UC33X
FAN48632BUC33X
FAN48632UC35X
(1)
Output Voltage
V
SEL0
/ V
SEL1
3.30 / 3.49
3.30 / 3.49
3.50 / 3.70
Soft-Start
FAST
FAST
FAST
Forced
Operating
Bypass Temperature
Low I
Q
Low I
Q
Low I
Q
-40°C to 85°C
Package
16-Ball, 4x4 Array, 0.4 mm
Pitch, 250 µm Ball, Wafer-Level
Chip-Scale Package (WLCSP)
Packing
Tape
and
Reel
Note:
1. The FAN48632BUC33X includes backside lamination.
Nest, which was recently acquired by Google, has dominated many prominent pages in the field of Internet technology with a small smoke alarm, causing a sensation. People have also seen the ambition of...
When two different external interrupts are enabled on the same STM8L interrupt port, one of the external interrupts will be entered and the entire program will be reinitialized immediately. This keeps...
I want to use the internal clock of AVR8, please help! I don't want to add any external components, I want to use the internal 8M clock of AVR, and set the time for one hour, what is the error? Can it...
A few days ago, I saw an introduction to a mobile power bank with a magnetic suction function on the Internet, so I thought I could modify the mobile power bank and make one by myself. I found a mobil...
[i=s] This post was last edited by w2000monkey on 2014-5-15 17:48 [/i]5V1A, good price/performance ratio, 0.58 per chip, more than two bare boards, good indicators, you can learn about the attachments...
[size=4]For C5000, the method of booting a program larger than 48K: [/size] [size=4] For C5000, the on-chip boot program moves the contents of the data area to the RAM in the program area after power-...
Industrial Control Electronics
京公网安备 11010802033920号
EEWORLD
