AS1349 Austin Semiconductor, AS1349 Datasheet - Page 4

• Manufacturer Part Number: AS1349
• Description: (AS1346 - AS1349) Dual Step Down Converter
• Manufacturer: Austin Semiconductor

AS1346, AS1347, AS1348, AS1349
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 4. Electrical Characteristics
www.austriamicrosystems.com/DC-DC_Step-Down/AS1346
Regulation
DC-DC Switches
A
R
R
R
R
Symbol
= T
DSON1(N)
DSON2(N)
DSON1(P)
DSON2(P)
V
V
I
V
I
I
SHDN
f
I
I
OUT1
OUT2
V
OUT1
OUT2
OSC
t
SW1
SW2
OUT
I
ON
J
Q
IN
= -40ºC to +85ºC; PVIN = VDD = EN = 5V, unless otherwise noted. Typ. values are at T
Pin-Pin Resistance for NMOS1
Pin-Pin Resistance for NMOS2
Pin-Pin Resistance for PMOS1
Pin-Pin Resistance for PMOS2
Quiescent Supply Current
Load Transient Response
Line Transient Response
Output Voltage Range
Input Voltage Range
Oscillator frequency
Shutdown Current
SW1 Current Limit
SW2 Current Limit
Output Voltage 1
Output Voltage 2
Output current 1
Output current 2
Turn on time
Parameter
Accuracy
Accuracy
1
500mA, V
V
V
V
V
V
DD
DD
DD
DD
IN
V
Revision 1.01
(see Table 7 on page 14)
AS1346, I
AS1346, I
V
IN
= 5.0V, I
= 5.0V, I
= 5.0V, I
= 5.0V, I
AS1346, V
AS1346, V
= 5V, I
OUT1
= 4.5V to 5.5V, I
OUT1
Conditions
V
= 3.3V, EN2 = 0V
OUT1
IN
AS1347
AS1348
AS1349
AS1347
AS1348
AS1349
AS1346
AS1346
SW
SW
SW
SW
OUT1
OUT2
≥ V
= 3.3V, EN2 = 0V
OUT1
OUT2
= 200mA
= 200mA
= 200mA
= 200mA
= 0 to 500mA,
OUT
= 100mA
= 100mA
= 3.3V
= 1.8V
OUT1
=
3.234
1.764
Min
1.8
2.7
1.2
1200
1200
1200
1.55
A
Typ
500
500
500
500
950
350
800
150
250
150
250
0.1
3.3
1.8
+2
+2
50
50
=25°C.
2
2
www.DataSheet4U.com
3.366
1.836
Max
5.5
3.6
2.8
2.2
1
mVpk
mVpk
Units
MHz
mΩ
mΩ
mΩ
mΩ
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
µA
µs
%
%
V
V
V
V
A
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