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Fairchild Semiconductor Electronic Components Datasheet

FAN2013 Datasheet

Low-Voltage Current-Mode Synchronous PWM Buck Regulator

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FAN2013 pdf
FAN2013
2A Low-Voltage Current-Mode Synchronous
PWM Buck Regulator
November 2006
Features
Description
95% Efficiency, Synchronous Operation
Adjustable Output Voltage from 0.8V to VIN
4.5V to 5.5V Input Voltage Range
Up to 2A Output Current
Fixed-Frequency 1.3MHz PWM Operation
100% Duty Cycle, Low-Dropout Operation
Soft-Start Function
Excellent Load Transient Response
Power-Good Flag
Over-Voltage, Under-Voltage Lockout, Short-Circuit,
and Thermal Shutdown Protections
3x3mm 6-lead MLP Package
The FAN2013 is a high-efficiency, low-noise synchro-
nous PWM current mode DC-DC converter designed for
low-voltage applications. It provides up to 2A continuous
load current from the 4.5V to 5.5V input. The output volt-
age is adjustable over a wide range of 0.8V to VIN by
means of an external voltage divider.
The FAN2013 is enabled when the input voltage on the
VIN pin exceeds the UVLO threshold.
A current-mode control loop with a fast transient
response ensures excellent line and load regulation. The
fixed 1.3MHz switching frequency enables designers to
choose a small, inexpensive external inductor and
capacitor. Filtering can be accomplished with small com-
Applications
Hard Disk Drive
Set-Top Box
ponents, reducing space and cost.
Protection features include input under-voltage lockout,
short-circuit protection, and thermal shutdown. Soft-start
limitswww.DataSheet4U.com in-rush current during start-up conditions.
Point-of-Load Power
The device is available in a 3x3mm 6-lead MLP.
Notebook Computer
Communications Equipment
Typical Application
+5V
PG
6
VIN 5
PVIN 4
10µF
P1
(AGND)
1 FB
10K
PGND
R2
2
SW L1
3
2.2µH
R1
VOUT
40µF
Figure 1. Typical Application
Ordering Information
Part Number
FAN2013MPX
Output Voltage
0.8V - VIN
Pb-Free
Yes
Package Type
MLP-6 3x3mm
Packing Method
Tape and Reel
© 2006 Fairchild Semiconductor Corporation
FAN2013 Rev. 1.0.0
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

FAN2013 Datasheet

Low-Voltage Current-Mode Synchronous PWM Buck Regulator

No Preview Available !

FAN2013 pdf
Pin Assignment
Top View
FB 1
PGND 2
P1
(AGND)
6 PG
5 VIN
SW 3
4 PVIN
3x3mm 6-Lead MLP
Figure 2. FAN2013 Pin Assignment
Pin Description
Pin #
P1
1
2
Name
AGND
FB
PGND
3 SW
4 PVIN
5 VIN
6 PG
Description
Analog Ground. P1 must be soldered to the PCB ground.
Feedback Input. Adjustable voltage option; connect this pin to the resistor divider.
Power Ground. This pin is connected to the internal MOSFET switches. This pin must
be externally connected to AGND.
Switching Node. This pin is connected to the internal MOSFET switches.
Supply Voltage Input. This pin is connected to the internal MOSFET switches.
Supply Voltage Input.
Open Drain Power Good.
© 2006 Fairchild Semiconductor Corporation
FAN2013 Rev. 1.0.0
2
www.fairchildsemi.com


Part Number FAN2013
Description Low-Voltage Current-Mode Synchronous PWM Buck Regulator
Maker Fairchild Semiconductor
Total Page 9 Pages
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