AS1334-BTDT-12(2009) 查看數據表（PDF） - austriamicrosystems AG
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AS1334-BTDT-12 Datasheet PDF : 17 Pages
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AS1334
Datasheet - Electrical Characteristics
6 Electrical Characteristics
TA = TJ = -40ºC to +85ºC; PVIN = VDD = EN = 3.6V, unless otherwise noted. Typ. values are at TA=25°C.
Table 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min Typ Max Units
1.176 1.2 1.224 V
1.47 1.5 1.53 V
VOUT Output Voltage
PVIN = 3.6V
1.764 1.8 1.836 V
2.45 2.5 2.55 V
2.94 3.0 3.06 V
ISHDN
IQ
Shutdown supply current
DC bias current into VDD
EN = SW = 0V1
FB = 0V, No Switching2
3.234 3.3 3.366 V
0.01 2 µA
1 1.4 mA
RDSON(P) Pin-Pin Resistance for PFET
RDSON(N) Pin-Pin Resistance for NFET
ISW = 200mA; TA = +25°C
ISW = 200mA
ISW = -200mA; TA = +25°C
ISW = -200mA
140 200
mΩ
230
300 415
mΩ
485
ILIM,PFET Switch peak current limit
POK Output
935 1100 1200 mA
VOL POK Output Low Voltage
POK sinking 0.1mA
0.05 0.2 V
POK Output High Leakage Current POK = 3.6V
500 nA
POK Threshold
Enable Input
Rising edge, referenced to VOUT(NOM) 87 90 93 %
VIH,EN Logic high input threshold
VIL,EN Logic low input threshold
IPIN,ENABLE Pin pull down current
Oscillator
1.2
V
0.5 V
5 10 µA
FOSC Internal oscillator frequency
1.8 2 2.2 MHz
1. Shutdown current includes leakage current of PFET.
2. IQ specified here is when the part is operating at 100% duty cycle.
System Characteristics
TA = 25ºC; PVIN = VDD = EN = 3.6V, unless otherwise noted. The following parameters are verified by characterisation
and are not production tested.
Table 4. System Characteristics
Symbol
Parameter
T_ON
Turn on time (from Enable low to
high transition)
Efficiency (L = 3.3µH, DCR ≤
η
100mΩ)
VOUT_ripple Ripple voltage, PWM mode1
Conditions
EN = Low to High, VIN = 4.2V, COUT =
10µF, IOUT ≤ 1mA
VIN = 3.6V, IOUT = 400mA
VIN = 4.2V, IOUT = 10mA to 400mA
Min Typ Max Units
210 350 µs
96
%
5
mVp-p
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