AS1323_04 Datasheet, PDF (2/15 Pages) ams AG – 1.6μA Quiescent Current, Single Cell, DC-DC Step-up Converter

Datasheet
AS1323
1.6µA Quiescent Current, Single Cell, DC-DC
Step-up Converter
1 General Description
2 Key Features
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.
lid ^{The compact device is available in three fixed-voltage variations and}
is perfect for a wide variety of applications where extremely-low
quiescent currents and very-small form factors are critical.
a ^{The devices are available as the standard products shown in Table}
1. See also Ordering Information on page 13.
v Table 1. Standard Products
Model
ill ^AS1323-27
AS1323-30
t _AS1323-33
Fixed Output Voltage
2.7V
3.0V
3.3V
Package
TSOT23-5
TSOT23-5
TSOT23-5
G _{s Integrated boot circuitry ensures start-up even with very-high load}
currents.
A ^t _{The true output disconnect feature completely disconnects the}
output from the battery during shutdown.
s ^{n The device is available in a TSOT23-5 pin package.}
! 1.6µA Quiescent Current
! Input Voltage Range: 0.75 to 2V
! Up to 100mA Output Current
! Fixed Output Voltages: 2.7, 3.0 and 3.3V
! Shutdown Current: 0.1µA
! Output Voltage Accuracy: ±3%
! Efficiency: Up to 85%
! No External Diode or FETs Needed
! Output Disconnect in Shutdown
! Guaranteed 0.95V Start-Up Voltage
! TSOT23-5 Package
am _o^{3 nApptliecations} _{Figure 1. AS1323 - Typical Operating Circuit}
The devices are ideal for single-cell portable devices including
mobile phones, MP3 players, PDAs, remote controls, personal
medical devices, wireless transmitters
and receivers, and any other battery-operated, portable device.
al ^c _10µH
ic ₁
5
VBATT
LX
n _10µF
h ^{AS1323 2}
VSS
c₃
Te ^SHDNN
4
VOUT
10µF
VBATT 1
5 LX
VSS 2 _AS1323
SHDNN 3
4 VOUT
www.austriamicrosystems.com/DC-DC_Step-Up/AS1323
Revision 1.07
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