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AS1332 데이터시트(PDF) 6 Page - ams AG

부품명 AS1332
상세설명  650mA, Step-Down DC-DC Converter for RF Power Amplifiers
PDF  20 Pages
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제조업체  AMSCO [ams AG]
홈페이지  http://www.ams.com
Logo AMSCO - ams AG

AS1332 데이터시트(HTML) 6 Page - ams AG

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www.austriamicrosystems.com/DC-DC_Step-Down/AS1332
Revision 1.02
5 - 19
AS1332
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
System Characteristics
TA = 25ºC; PVIN = VDD = EN = 3.6V, unless otherwise noted. The following parameters are verfied by characterisation
and are not production tested.
Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or
SQC (Statistical Quality Control) methods.
Table 4. System Characteristics
Symbol
Parameter
Conditions
Min
Typ Max
Unit
s
Control Inputs
TRESP
Time for VOUT to rise from
1.3V to 3.16V
VIN = 4.2V, COUT = 4.7µF,
L = 3.3µH, RLOAD = 5Ω
20
30
µs
Time for VOUT to fall from
3.16V to 1.3V
VIN = 4.2V, COUT = 4.7µF,
L = 3.3µH, RLOAD = 10Ω
20
30
CCON
VCON Input Capacitance
VCON = 1V, Test frequency = 100 kHz
20
pF
Linearity
Linearity in Control
Range 0.556V to 1.208V
VIN = 3.6V,
Monotonic in nature
-3
+3
%
T_ON
Turn-On Time
(time for output to reach 3.16V from
enable low to high transition)
EN = Low to High, VIN = 4.2V,
VOUT = 3.16V, COUT = 4.7µF, IOUT ≤ 1mA
210
750
µs
Performance Parameters
η
Efficiency
(L = 3.3µH, DCR
≤ 100mΩ)
VIN = 3.6V, VOUT = 1.3V, IOUT = 90mA
87
%
VIN = 3.6V, VOUT = 3.16V, IOUT = 400mA
96
VOUT-
ripple
Ripple voltage, PWM mode
1
1. Ripple voltage should measured at COUT electrode on good layout PC board and under condition using sug-
gested inductors and capacitors.
VIN = 3V to 4.5V, VOUT = 1.3V,
IOUT = 10mA to 400mA
10
mVp
-p
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
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
PSRR
VIN = 3.6V, VOUT = 1.3V,
IOUT = 100mA
sine wave perturbation frequency = 10kHz,
amplitude = 100mVp-p
40
dB



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