DC-DC Step down Converters

austriamicrosystems Step down Converters portfolio is optimized for highest efficiencies of up to 96%.High switching speeds enable the use of very small external inductors. The product range comprises also buck converters dedicated for RF PA supply for WDCMA and 3G systems. Furthermore the DCDC buck converter portfolio covers high voltages of up to 32V.

Part No.
 Description
 Datasheet
 Price (1k)*
 Buy
 Sample
 analogbench

 Input Voltage
 Output Voltage
 Output Current
 Efficiency
 Iq
 Architecture
 fmax
 Enable/SHDN
 Reset
 Features
 Package
              V V mA % µA kHz /SHDN POK
AS1324 DC-DC Step-Down Converter, 600mA, 1.5MHz Download Datasheet $ 0.59
Design It!
2.7 to 5.5
0.6 to Vin
600
96
35
fixed Frequency, sync.
1500
√
TSOT23-5
AS1332 DC-DC Step-Down Converter 650mA for RF PA supply Download Datasheet $ 1.59
 
2.7 to 5.5
1.3 to 3.16
650
96
1000
fixed Frequency, sync.
2000
√
Dynamical Voltage Control
WL-CSP-8
AS1333 DC-DC Step-Down Converter 650mA for RF PA supply Download Datasheet $ 1.59
 
3.25 to 5.5
3.09
650
96
1000
fixed Frequency, sync.
2000
√
Low Noise, Low Output Voltage Ripple
WL-CSP 8-pin
AS1334 DC-DC Step-Down Converter, 650mA Ultra-Low Ripple, Download Datasheet $ 1.59
  Design It!
3.25 to 5.5
1.2 to 3.4
650
96
1000
fixed Frequency, sync.
2000
√
√
Low Noise, Low Output Voltage Ripple
TDFN(3x3)-8
AS1335 DC-DC Step-down Converter, Iout=1.5A 1.5MHz Download Datasheet $ 0.77
 
2.6 to 5.25
0.6 to 5.25
1500
96
400
fixed Frequency, sync.
1500
√
TDFN(3x3)-10
AS1339 DC-DC Step-Down Converter 650mA , 2x10mA LDOs for RF PA supply Download Datasheet $ 1.49
 
2.7 to 5.5
0.8 to 3.75
650
96
4500
fixed Frequency, sync.
2000
√
dynamical Voltage Control for RF-PA supply, WCDMA/NCDMA
WL-CSP-16
AS1341 HV DC-DC Step-down Converter 20V, 600mA Download Datasheet $ 1.56
Design It!
4.5 to 20
1.25 to Vin
600
96
12
Hysteretic, async
<250
√
√
100% Duty Cycle
TDFN(3x3)-8
AS1346 new AS1346 Dual 1.2A and 0.5A Step Down Converter Download Datasheet $ 1.08      
2.7V to 5.5
1.2 to 3.6
1200 and 500
95
2000
fixed Frequency, sync
2000
√
√
TDFN(3x3)-12
AS1347 new AS1347 Dual 0.5A and 0.5A Step Down Converter Download Datasheet $ 0.90      
2.7V to 5.5
1.2 to 3.6
500 and 500
95
2000
fixed Frequency, sync
2000
√
√
TDFN(3x3)-12
AS1348 new AS1348 Dual 0.5A and 0.95A Step Down Converter Download Datasheet $ 1.05      
2.7V to 5.5
1.2 to 3.6
500 and 950
95
2000
fixed Frequency, sync
2000
√
√
TDFN(3x3)-12
AS1349 new AS1349 Dual 1.2A and 1.2A Step Down Converter Download Datasheet $ 1.26      
2.7V to 5.5
1.2 to 3.6
1200 and 1200
95
2000
fixed Frequency, sync
2000
√
√
TDFN(3x3)-12
AS7620 HV DC-DC Step-Down Converter, 32V, with Dual Power Monitor Download Datasheet $ 1.36
Design It!
3.6 to 32
AS7620-A: 1.2 to Vin
AS7620-B: 3.3
500
90
30
Hysteretic, async
>250
√
√
Early Power Fail Warning
100% Duty Cycle
QFN(4x4)-12

* This list pricing is BUDGETARY, for comparing similar parts. Prices are per unit on the basis of 1k pieces in U.S. dollars and subject to change, net of applicable taxes. Quantity pricing may vary substantially due to package types and international prices may differ due to local duties, taxes, fees, and exchange rates.

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