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PDF AS1310 Data sheet ( Hoja de datos )
| Número de pieza | AS1310 | |
| Descripción | Hysteretic DC-DC Step-Up Converter | |
| Fabricantes | ams | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AS1310 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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AS1310
Ultra Low Quiescent Current,
Hysteretic DC-DC Step-Up Converter
General Description
Figure 1:
Added Value of Using AS1310
Benefits
Ideal for single Li-Ion battery powered
applications
Extended battery life
Supports a variety of end applications
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:
Features
• Wide Input Voltage Range (0.7V to 3,6V)
• Feed through mode when VIN > VOUT
• High Efficiency up to 92%
• Low Quiescent Current of typ. 1uA
• Low Shutdown Current of less than 100nA
• Fixed output voltage range (1.8V to 3.3V)
• Output Disconnect in shutdown
• Output current: 60mA @ VIN=0.9V, VOUT=1.8V
ams Datasheet
[v1-11] 2015-Jan-28
Page 1
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1 page  
AS1310 − Electrical Characteristics
Electrical Characteristics
Figure 6:
Electrical Characteristics
All limits are guaranteed. The parameters with Min and Max
values are guaranteed by production tests or SQC (Statistical
Quality Control) methods.
VIN = 1.5V, C1 = C2 = 22μF, CREF = 100nF, Typical values are at
TAMB = +25ºC (unless otherwise specified). All limits are
guaranteed. The parameters with min and max values are
guaranteed with production tests or SQC (Statistical Quality
Control) methods.
Symbol
Parameter
Conditions
TAMB
Operating Temperature
Range
Input
VIN Input Voltage Range
Minimum Startup Voltage ILOAD = 1mA, TAMB = +25°C
Regulation
VOUT
Output Voltage Range
Output Voltage Tolerance
ILOAD = 10 mA, TAMB = +25°C
ILOAD = 10mA
VOUT Lockout Threshold(1) Rising Edge
Operating Current
Quiescent Current VIN
IQ
Quiescent Current VOUT
ISHDN Shutdown Current
VOUT = 1.02xVOUTNOM,
REF = 0.99xVOUTNOM,
TAMB = +25°C
VOUT = 1.02xVON, REF =
0.99xVON,
No load, TAMB = +25°C
TAMB = +25ºC
Min Typ Max Units
-40 +85 °C
0.7 3.6
0.7 0.8
V
V
1.8 3.3
-2 +2
-3 +3
1.55 1.65 1.75
V
%
%
V
100 nA
0.8 1 1.2 μA
100 nA
ams Datasheet
[v1-11] 2015-Jan-28
Page 5
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5 Page 
AS1310 − Typical Operating Characteristics
Figure 15:
Output Voltage Ripple; VIN = 2V, VOUT = 3V,Rload = 100Ω
5μs/Div
ams Datasheet
[v1-11] 2015-Jan-28
Page 11
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AS1310.PDF ] | |
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