Features
Fixed 3.3V Outputs
Output Current: Up to 150mA
Constant Frequency Operation at All Loads
Low Noise Constant Frequency (1.2MHz)
Operation
Shutdown Disconnects Load from Input
Shutdown Current <1
μ
A
Short-Circuit/Thermal Protection
Available in Low Profile 6-Lead SOT23
Package
ApplICation
2 AA Cell to 3.3V
USB On-The-Go Devices
White LED Drivers
Handheld Devices
Description
frequency (1.2MHz) switched capacitor voltage
doublers. Light load operation is initiated if the
output load current fall below 45mA. The
voltage of 3.3V from a minimum input voltage of
1.8V (2 alkaline cells)
at any load. Built-in soft-start circuitry prevents
excessive inrush current during start-up.
Thermal shutdown and current-limit circuitry
allow the parts to survive a continuous
short-circuit from VOUT to GND.
High switching frequency minimizes overall
solution footprint by allowing the use of tiny
ceramic capacitors. In shutdown, the load is
disconnected from the input and the quiescent
current is reduced to <1
μ
A.
Low
Noise,
Regulated
Charge
Pump
DC/DC
Converter
XA2320B
(XA2320B -3.3)
The XA2320B is a low noise, constant
XA2320B can produce a regulated output
XA2320B feature constant frequency operation
The XA2320B is available in the 6-pin SOT23-6.