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FAN4868 Datasheet(PDF) 2 Page - ON Semiconductor

Part # FAN4868
Description  3 MHz, Synchronous TinyBoost Regulator
Download  12 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

FAN4868 Datasheet(HTML) 2 Page - ON Semiconductor

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FAN4868
www.onsemi.com
2
Table 1. ORDERING INFORMATION
Part Number
Operating Temperature Range
Package
Packing Method
FAN4868UC33X
−40°C to 85°C
WLCSP, 0.4 mm Pitch
Tape and Reel
BLOCK DIAGRAMS
Figure 1. IC Block Diagram
EN
VOUT
Q2
Q1
Modulator Logic
and Control
Q3
VIN
SW
Synchronous
Rectifier
Control
GND
FB
L1
EN
VOUT
Q2
Q1
Modulator Logic
and Control
Q3
VIN
SW
Synchronous
Rectifier
Control
GND
FB
L1
VIN
CIN
COUT
PIN CONFIGURATIONS
Figure 2. WLCSP (Top View)
VIN
SW
EN
GND
VOUT
FB
C2
C1
B2
B1
A2
VIN
SW
EN
GND
VOUT
FB
C1
C2
B1
B2
A1
Figure 3. WLCSP (Bottom View)
A2
A1
Table 2. PIN DEFINITIONS
Pin #
Name
Description
WLCSP
A1
VIN
Input Voltage. Connect to Li−Ion battery input power source and input capacitor (CIN)
B1
SW
Switching Node. Connect to inductor
C1
EN
Enable. When this pin is HIGH, the circuit is enabled. This pin should not be left floating
C2
FB
Feedback. Output voltage sense point for VOUT. Connect to output capacitor (COUT)
B2
VOUT
Output Voltage. This pin is both the output voltage terminal as well as an IC bias supply
A2
GND
Ground. Power and signal ground reference for the IC. All voltages are measured with
respect to this pin


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