ams Datasheet Page 1
[v1-43] 2015-Jul-23 Document Feedback
AS1313
Ultra Low Quiescent Current, DC-DC
Step Down Converter
The AS1313 is an ultra-low quiescent current hysteretic
step-down DC-DC converter optimized for light loads and with
efficiencies of up to 95%.
AS1313 operates from a 2.4V to 5.5V supply and supports
output voltages between 1.2V and 3.6V. Besides the available
AS1313 standard variants, any variant with output voltages in
50mV steps are available.
In order to save power the AS1313 features a shutdown mode,
where it draws less than 100nA. During shutdown mode the
battery is disconnected from the output.
In light load operation, the device enters an idle mode when
most of the internal operating blocks are turned off in order to
save power. This mode is active approximately 100µs after a
current pulse provided that the output is in regulation. The
capacitor connected to the REF pin is an essential part of this
feature.
The AS1313 is available in an 8-pin MLPD (2mm x 2mm) and a
6-pin WL-CSP (0.4mm pitch).
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of AS1313, Ultra Low Quiescent
Current, DC-DC Step Down Converter are listed below:
Figure 1:
Added Value of Using AS1313
Benefits Features
Ideal for single Li-Ion battery powered applications • Wide input voltage range (2.4V to 5.5V)
Extended battery life • High efficiency up to 95%
Less power consumption
• Low quiescent current of typ. 1µA
• Low shutdown current of less than 100nA
Supports a variety of end applications
• Fixed output voltage range (1.2V to 3.6V)
• Output current of 150mA
Over–temperature protection and shutdown • Integrated temperature monitoring
Cost effective, small package
• 6-pin WL-CSP with 0.4mm pitch
• 8-pin MLPD (2mm x 2mm)
