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FAN23SV06AMPX / FAN23SV06PAMPX— 6 A Synchronous Buck Regulator
September 2015
FAN23SV06AMPX / FAN23SV06PAMPX
6 A Synchronous Buck Regulator
Features
V
IN
Range: 7 V to 18 V Using Internal Linear
Regulator for Bias
V
IN
Range: 4.5 V to 5.5 V with V
IN
/P
VIN
/P
VCC
Connected to Bypass Internal Regulator
High Efficiency: Over 96% Peak
Continuous Output Current: 6 A
Accurate Enable Facilitates V
IN
UVLO Functionality
PFM Mode for Light-Load Efficiency
Forced PWM Mode Option (FAN23SV06PA)
Excellent Line and Load Transient Response
Precision Reference: ±1% Over Temperature
Output Voltage Range: 0.6 to 5.5 V
Programmable Frequency: 200 kHz to 1.5 MHz
Programmable Soft-Start
Low Shutdown Current
Adjustable Sourcing Current Limit
Internal Boot Diode
Thermal Shutdown
Halogen and Lead Free, RoHS Compliant
Description
The FAN23SV06A/FAN23SV06PA is a highly efficient
synchronous buck regulator. The regulator is capable of
operating with an input range from 7 V to 18 V and
supporting 6 A continuous load currents. The device can
operate from a 5 V rail (±10%) if V
IN
, P
VIN
, and P
VCC
are
connected together to bypass the internal linear
regulator.
These devices utilize Fairchild’s constant on-time
control architecture to provide excellent transient
response and to maintain a relatively constant switching
frequency. The FAN23SV06A utilizes Pulse Frequency
Modulation (PFM) mode to maximize light-load
efficiency by reducing switching frequency when the
inductor is operating in discontinuous conduction mode
at light loads. The FAN23SV06PA with forced Pulse
Width Modulation (PWM) mode is available for
applications that require a relatively constant switching
frequency across the full load range.
Switching frequency and over-current protection can
be programmed to provide a flexible solution for
various applications. Output over-voltage, under-
voltage, over-current, and thermal shutdown protections
help prevent damage to the device during fault
conditions. After thermal shutdown is activated, a
hysteresis feature restarts the device when normal
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