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PDF AS1323 Data sheet ( Hoja de datos )
| Número de pieza | AS1323 | |
| Descripción | DC-DC Step-up Converter | |
| Fabricantes | ams | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AS1323 (archivo pdf) en la parte inferior de esta página. Total 29 Páginas | ||
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AS1323
1.6μA Quiescent Current, Single Cell,
DC-DC Step-up Converter
General Description
The AS1323 high-efficiency step-up DC-DC converter was
designed specifically for single-cell, battery-powered devices
where lowest quiescent current and high efficiency are
essential.
The compact device is available in three fixed-voltage variants
with Vout of 2.7V, 3.0V, and 3.3V. It is perfect for a wide variety
of applications where low quiescent currents and small form
factors are critical.
Integrated boot circuitry ensures start-up even with very-high
load currents.
The true output disconnect feature completely disconnects the
output from the battery during shutdown.
The device is available in a TSOT23-5 pin package.
Ordering Information and Content Guide appear at end of
datasheet.
Figure 1:
Added Value of Using AS1323
Key Benefits & Features
The benefits and features of AS1323, 1.6μA Quiescent Current,
Single Cell, DC-DC Step-up Converter are listed below:
Benefits
Extended battery life
Suitable to wide variety of applications
Enables cost effective PCB design
Features
• 1.6μA Quiescent Current
• Shutdown Current 0.1μA
• Efficiency Up to 85%
• Input Voltage Range: 0.75 to 2V
• Fixed Output Voltages: 2.7, 3.0 and 3.3V
• Output Voltage Accuracy: ±3%
• Up to 100mA Output Current
• Output Disconnect in Shutdown
• Guaranteed 0.95V Start-Up Voltage
• No External Diode or FETs Needed
• TSOT23-5 Package
ams Datasheet
[v1-11] 2014-Dec-16
Page 1
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1 page  
AS1323 − Electrical Characteristics
Electrical Characteristics
Figure 6:
Electrical Characteristics
DC Electrical Characteristics
TAMB = -40°C to 85°C, VBATT = 1.2V, VOUT = VOUT(NOM),
SHDNN = VOUT, RLOAD = ∞, unless otherwise noted. Typical values
are at TA = 25°C.(unless otherwise specified). Limits are 100%
production tested at TAMB = 25ºC. Limits over the operating
temperature range are guaranteed by design.
Symbol
VINMIN
VIN
VINSU
Parameter
Minimum Input Voltage
Operating Input Voltage
Minimum Start-Up
Input Voltage
VOUT
Output Voltage
RLOAD
RDS-ON
ILIMIT
tON
Load depended drop
of VOUT
N-Channel ON-Resistance
P-Channel ON-Resistance
N-Channel Switch
Current Limit
Switch Maximum ON-Time
Synchronous Rectifier
Zero-Crossing Current
IOP-OUT
Operating Current
into VBATT
IQ-OUT Quiescent Current to VOUT
IQ-BAT Quiescent Current into VBATT
Condition
TAMB = 25ºC
TAMB = 25ºC,
RLOAD = 100Ω
AS1323-27
AS1323-30
AS1323-33
VBATT = 1.5V;
ILOAD = 45mA
Programmed at
400mA
VBATT = 1.5V,
VOUT = 3.3V,
TAMB = 25ºC
VBATT = 1.5V,
TAMB = 25ºC
Min Typ Max Unit
0.75 V
0.95 2 V
0.75 0.95
V
2.619 2.7 2.781
2.91 3.0 3.09
3.201 3.3 3.399
V
30 40
mV
0.5 1.0
0.75 1.5
Ω
Ω
400 mA
6 μs
10 mA
6
1.6 3
0.3 1
μA
μA
μA
ams Datasheet
[v1-11] 2014-Dec-16
Page 5
Document Feedback
5 Page 
AS1323 − Typical Operating Characteristics
Figure 15:
Minimum Input Startup Voltage vs. Temperature
1
0.9
0.8
0.7
0.6
0.5
-50 -25
0 25 50 75 100 125
Temperature (°C)
Figure 16:
Output Voltage vs. Input Voltage; VOUT = 2.7V
2.78
2.76
2.74
2.72
2.7
2.68
2.66
2.64
2.62
0.75
IOUT = 0mA
IOUT = 10mA
IOUT = 30mA
1 1.25 1.5 1.75
Input Voltage (V)
2
ams Datasheet
[v1-11] 2014-Dec-16
Page 11
Document Feedback
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet AS1323.PDF ] | |
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