ams Datasheet Page 1
[v1-11] 2015-Jan-28 Document Feedback
AS1310
Ultra Low Quiescent Current,
Hysteretic DC-DC Step-Up Converter
The AS1310 is an ultra low quiescent current hysteretic step-up
DC-DC converter optimized for light loads (60mA), where it
achieves efficiencies of up to 92%.
AS1310 operates from a 0.7V to 3.6V supply and supports
output voltages between 1.8V and 3.3V. Besides the available
AS1310 standard variants any variant with output voltages in
50mV steps are available.
If the input voltage exceeds the output voltage the device is in
a feed-through mode and the input is directly connected to the
output voltage.
In light load operation, the device enters a sleep mode when
most of the internal operating blocks are turned OFF in order
to save power. This mode is active approximately 50μs after a
current pulse provided that the output is in regulation.
In order to save power the AS1310 features a shutdown mode,
where it draws less than 100nA. During shutdown mode the
battery is disconnected from the output.
The AS1310 also offers adjustable low battery detection. If the
battery voltage decreases below the threshold defined by two
external resistors on pin LBI, the LBO output is pulled to logic
low.
The AS1310 is available in a TDFN (2x2) 8-pin package.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of AS1310, Ultra Low Quiescent
Current, Hysteretic DC-DC Step-Up Converter are listed below:
Figure 1:
Added Value of Using AS1310
Benefits Features
Ideal for single Li-Ion battery powered
applications
• Wide Input Voltage Range (0.7V to 3,6V)
• Feed through mode when V
IN
> V
OUT
Extended battery life
• High Efficiency up to 92%
• Low Quiescent Current of typ. 1uA
• Low Shutdown Current of less than 100nA
Supports a variety of end applications
• Fixed output voltage range (1.8V to 3.3V)
• Output Disconnect in shutdown
• Output current: 60mA @ VIN=0.9V, VOUT=1.8V
