Description
AX3051/A 2.8A,Wide-Input Sensorless CC/CV Step-Down DC/DC Converter GENERAL .
AX3051/A is a wide input voltage, high efficiency Active CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC.
Features
* as low current consumption. SOP-8L-EP packages,V providing
m Since this converter can accommodate . co an input voltage up to 36V. w ww . g te ofo ch
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Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.1 Apr.09, 2013
AX3051/A
FEATURES - Input Voltage:8V
Applications
* VÛmw`R
* yÑb€ - Car charger - Portable charger Device. BLOCK DIAGRAM
CURRENT SENSE AMPLIFIER OSCILLATOR FB 100KHz/250KHz BS RAMP CLK IN
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+ 5V
+ 1V
S R
Q Q
M1 0.15Ω
+
ERROR AMPLIFIER
OVP
CURRENT COMPARATOR M2 5Ω
LX
COMP IN CURRENT Limit AMPLIFIER INTERNAL REGULATOR