AS1334 austriamicrosystems AG, AS1334 Datasheet - Page 4

• Manufacturer Part Number: AS1334
• Description: 650mA Ultra low Ripple Step Down DC/DC Converter
• Manufacturer: austriamicrosystems AG

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
T
Table 3. Electrical Characteristics
1. Shutdown current includes leakage current of PFET.
2. I
System Characteristics
T
and are not production tested.
Table 4. System Characteristics
www.austriamicrosystems.com
POK Output
Enable Input
Oscillator
I
V
A
A
PIN,ENABLE
R
R
I
OUT
Symbol
Symbol
LIM,PFET
= T
= 25ºC; PV
V
Q
DSON(N)
V
I
DSON(P)
V
F
T
SHDN
V
IH,EN
IL,EN
OSC
specified here is when the part is operating at 100% duty cycle.
OUT
I
_ON
_ripple Ripple voltage, PWM mode
Q
OL
η
J
= -40ºC to +85ºC; PV
Output Voltage
Shutdown supply current
DC bias current into VDD
Pin-Pin Resistance for PFET
Pin-Pin Resistance for NFET
Switch peak current limit
POK Output Low Voltage
POK Output High Leakage Current POK = 3.6V
POK Threshold
Logic high input threshold
Logic low input threshold
Pin pull down current
Internal oscillator frequency
IN
Turn on time (from Enable low to
high transition)
Efficiency (L = 3.3µH, DCR ≤
100mΩ)
= VDD = EN = 3.6V, unless otherwise noted. The following parameters are verified by characterisation
Parameter
Parameter
IN
= VDD = EN = 3.6V, unless otherwise noted. Typ. values are at T
1
PV
EN = SW = 0V
FB = 0V, No Switching
I
I
I
I
POK sinking 0.1mA
Rising edge, referenced to V
EN = Low to High, V
10µF, I
V
V
SW
SW
SW
SW
IN
IN
Revision 1.04
IN
= 200mA; T
= 200mA
= -200mA; T
= -200mA
= 3.6V, I
= 4.2V, I
= 3.6V
OUT
≤ 1mA
OUT
OUT
Conditions
Conditions
1
A
A
= 400mA
= 10mA to 400mA
= +25°C
= +25°C
IN
2
= 4.2V, C
OUT(NOM)
OUT
=
1.176
1.764
3.234
1.47
2.45
2.94
Min
935
1.2
1.8
87
Min Typ Max Units
A
=25°C.
1100
0.01
0.05
w w w . D a t a S h e e t 4 U . c
Typ
140
300
210 350
1.2
1.5
1.8
2.5
3.0
3.3
90
96
1
5
2
5
1.224
1.836
3.366
1200
Max Units
1.53
2.55
3.06
200
230
415
485
500
1.4
0.2
0.5
2.2
93
10
2
mVp-p
MHz
4 - 17
µs
%
mA
mΩ
mΩ
mA
µA
nA
µA
%
V
V
V
V
V
V
V
V
V