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Fairchild Semiconductor |
April 2007
FAN2106 — TinyBuck™
6A, 24V Input Integrated Synchronous Buck Regulator
Features
Description
Over 95% efficiency
Internal power MOSFETs:
High-side RDS(ON) = 30mΩ
Low-side RDS(ON) = 14mΩ
Integrated low-side Schottky diode
Programmable frequency operation
The FAN2106 TinyBuckTM is an easy-to-use, cost and
space-efficient, synchronous buck solution. It enables
designers to solve high current requirements in a small
area with minimal external components.
External programming of clock frequency, current limit,
and loop response allows for optimization and flexibility
selecting output filter components and transient response.
Power-good signal
Wide input range: 3.0V to 24V
The summing current mode modulator uses lossless
current sensing for current feedback and over-current,
and includes voltage feedforward.
Output voltage range: 0.8V to 90%VIN
Input under-voltage lockout (UVLO)
Programmable over-current protection
Fairchild’s advanced BiCMOS power process, combined
with a thermally efficient MLP package, provides low-
RDS(ON) internal MOSFETs and the ability to dissipate
highwww.DataSheet4U.com power in a small package.
Under-voltage, over-voltage, and thermal protection
Selectable light-load power-saving mode
5x6mm, 25-pin, 3-pad MLP
Under-voltage, thermal shutdown, and power-good are
blanked at start-up, but protect the device from damage
during fault conditions.
Applications
Thin and light Notebook PCs
Graphics cards
Battery-powered equipment
Set-top box
Point-of-load regulation
Ordering Information
Operating
Part Number Temperature Range
FAN2106MPX
-10°C to 85°C
FAN2106EMPX
-40°C to 85°C
Pb-Free
Yes
Yes
Package
Molded Leadless Package (MLP) 5x6mm
Molded Leadless Package (MLP) 5x6mm
Packing
Method
Tape and Reel
Tape and Reel
© 2006 Fairchild Semiconductor Corporation
FAN2106 Rev. 1.0.1
www.fairchildsemi.com
Typical Application Diagram
Block Diagram
Figure 1. Typical Application
© 2006 Fairchild Semiconductor Corporation
FAN2106 Rev. 1.0.1
Figure 2. Block Diagram
2
www.fairchildsemi.com
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