AX6642/A
1.5A High Output Current LDO Regulator
GENERAL DESCRIPTION
The AX6642/A is a low noise, high output current, low quiescent current and low
dropout linear regulator. The Device includes pass element, error amplifier, band-gap,
current-limit and thermal shutdown circuitry. The output current is up to 1.5A. The
characteristics of low dropout voltage and less quiescent current make it good for some
critical current application, for example, some battery powered devices. The typical
quiescent current is approximately 50µA. Due to internal flexible design; result in extensively
fixed output voltage versions form 1.2V to 5V per 0.1V steps. Built-in current-limit, Short
current protection and thermal-shutdown functions prevent any fault condition from IC
damage.
FEATURES
- Input voltage range : 2.6V~5.5V
- Dropout voltage is 450mV at 1.5A output current @ VOUT = 3.30V
- Guaranteed 1.5A output current
- Low quiescent current is 50µA (typ.)
- Fixed Output voltage is form 1.2 V to 5V by 0.1V steps.
- Fast transient response
- Current limit and thermal shutdown protection
- Short circuit current fold-back
- Available in the 3-Pin Pb-Free SOT89, SOT-223, TO263, TO252 and SOP-8L packages
BLOCK DIAGRAM
VIN VOUT
Current
Limit
EN Enable
Thermal
Shutdown
Error
Amp
-+
Bandgap
BP
GND
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Rev.1.1 Jul.30, 2010
