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AS1334-BTDT-30 Datasheet(PDF) 4 Page - ams AG

Part # AS1334-BTDT-30
Description  650mA, Ultra low Ripple Step Down DC/DC Converter
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS1334-BTDT-30 Datasheet(HTML) 4 Page - ams AG

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Revision 1.04
4 - 17
AS1334
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
TA = TJ = -40ºC to +85ºC; PVIN = VDD = EN = 3.6V, unless otherwise noted. Typ. values are at TA=25°C.
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 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max Units
VOUT
Output Voltage
PVIN = 3.6V
1.176
1.2
1.224
V
1.47
1.5
1.53
V
1.764
1.8
1.836
V
2.45
2.5
2.55
V
2.94
3.0
3.06
V
3.234
3.3
3.366
V
ISHDN
Shutdown supply current
EN = SW = 0V
1
1. Shutdown current includes leakage current of PFET.
0.01
2
µA
IQ
DC bias current into VDD
FB = 0V, No Switching
2
2. IQ specified here is when the part is operating at 100% duty cycle.
11.4
mA
RDSON(P)
Pin-Pin Resistance for PFET
ISW = 200mA; TA = +25°C
140
200
m
Ω
ISW = 200mA
230
RDSON(N)
Pin-Pin Resistance for NFET
ISW = -200mA; TA = +25°C
300
415
m
Ω
ISW = -200mA
485
ILIM,PFET
Switch peak current limit
935
1100
1200
mA
POK Output
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
Rising edge, referenced to VOUT(NOM)
87
90
93
%
Enable Input
VIH,EN
Logic high input threshold
1.2
V
VIL,EN
Logic low input threshold
0.5
V
IPIN,ENABLE Pin pull down current
510
µA
Oscillator
FOSC
Internal oscillator frequency
1.8
2
2.2
MHz
Table 4. System Characteristics
Symbol
Parameter
Conditions
Min
Typ Max
Units
T_ON
Turn on time (from Enable low to
high transition)
EN = Low to High, VIN = 4.2V, COUT =
10µF, IOUT ≤ 1mA
210
350
µs
η
Efficiency (L = 3.3µH, DCR
100m
Ω)
VIN = 3.6V, IOUT = 400mA
96
%
VOUT_ripple Ripple voltage, PWM mode
1
VIN = 4.2V, IOUT = 10mA to 400mA
5mVp-p


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