AS1332 データシートの表示（PDF） - austriamicrosystems AG
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AS1332 Datasheet PDF : 20 Pages
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AS1332
Datasheet - Electrical Characteristics
System Characteristics
TA = 25ºC; PVIN = VDD = EN = 3.6V, unless otherwise noted. The following parameters are verfied by characterisation
and are not production tested.
Table 4. System Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
s
Control Inputs
lid TRESP
Time for VOUT to rise from
1.3V to 3.16V
Time for VOUT to fall from
3.16V to 1.3V
VIN = 4.2V, COUT = 4.7µF,
L = 3.3µH, RLOAD = 5Ω
VIN = 4.2V, COUT = 4.7µF,
L = 3.3µH, RLOAD = 10Ω
20 30
µs
20 30
a CCON VCON Input Capacitance
VCON = 1V, Test frequency = 100 kHz
20 pF
v Linearity in Control
Linearity Range 0.556V to 1.208V
VIN = 3.6V,
Monotonic in nature
-3
+3 %
ill T_ON
Turn-On Time
EN = Low to High, VIN = 4.2V,
(time for output to reach 3.16V from
enable low to high transition)
VOUT = 3.16V, COUT = 4.7µF, IOUT ≤ 1mA
210 750 µs
t Performance Parameters
G s Efficiency
η
(L = 3.3µH, DCR ≤ 100mΩ)
VIN = 3.6V, VOUT = 1.3V, IOUT = 90mA
VIN = 3.6V, VOUT = 3.16V, IOUT = 400mA
87
%
96
A t VOUT-
s n ripple
Ripple voltage, PWM mode1
VIN = 3V to 4.5V, VOUT = 1.3V,
IOUT = 10mA to 400mA
10
mVp
-p
m te Line_tr Line transient response
VIN = 600mV perturbance, over Vin range
3V to 5.5V; TRISE = TFALL = 10µs,
VOUT = 1.3V, IOUT = 100mA
50
mVp
k
a n Load_tr Load transient response
VIN = 3.1/3.6/4.5V, VOUT = 1.3V, transients
up to 100mA, TRISE = TFALL = 10µs
50
mVp
k
o VIN = 3.6V, VOUT = 1.3V,
PSRR IOUT = 100mA
sine wave perturbation frequency = 10kHz,
amplitude = 100mVp-p
40
dB
c 1. Ripple voltage should measured at COUT electrode on good layout PC board and under condition using sug-
l gested inductors and capacitors.
a Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or
Technic SQC (Statistical Quality Control) methods.
www.austriamicrosystems.com/DC-DC_Step-Down/AS1332
Revision 1.02
5 - 19
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