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PDF EUP3458VIR1 Data sheet ( Hoja de datos )
| Número de pieza | EUP3458VIR1 | |
| Descripción | 1.2MHz Step-Down Converter | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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EUP3458
1.2A,30V,1.2MHz Step-Down Converter
DESCRIPTION
The EUP3458 is current mode, step-down switching
regulator capable of driving 1.2A continuous load with
excellent line and load regulation. The EUP3458 can
operate with an input voltage range from 4.5V to 30V
and the output can be externally set from 0.8V to 15V
with a resistor divider.
Fault protection includes cycle-by-cycle current
limiting and thermal shutdown. In shutdown mode the
regulator draws 1µA of supply current. Internal
soft-start minimizes the inrush current and the output
overshoot.
The EUP3458 is available in SOT23-6 and TSOT23-6
packages.
FEATURES
1.2A Output Current
0.3Ω Internal DMOS Output Switch
4.5V to 30V Input Operating Range
Output Adjustable from 0.8V to 15V
Up to 92% Efficiency
1µA Shutdown Current
Fixed 1.2MHz Frequency
Thermal Shutdown and Overcurrent Protection
Input Supply Undervoltage Lockout
Available in SOT23-6 and TSOT23-6 Packages
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
WLED Drivers
Typical Application Circuit
DS3458 Ver0.2 Apr. 2011
Figure 1. 12V/24V to 3.3V Application Circuit
1
1 page  
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Typical Operating Characteristics
VIN=12V, VOUT=3.3V, C1 =10µF, C2=22µF, L1=4.7µH, TA=25°C, unless otherwise noted.
EUP3458
Figure4.
Figure5.
Figure6.
Figure7.
Figure8.
DS3458 Ver0.2 Apr. 2011
5
Figure9.
5 Page 
EUP3458Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
TSOT23-6
SYMBOLS
A
A1
b
D
E1
e
E
L
MILLIMETERS
MIN.
-
MAX.
1.00
0.00 0.15
0.30 0.50
2.90
1.60
0.95
2.60 3.00
0.3 0.60
INCHES
MIN.
-
MAX.
0.039
0.000
0.006
0.012
0.020
0.114
0.063
0.037
0.102
0.118
0.012
0.024
DS3458 Ver0.2 Apr. 2011
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet EUP3458VIR1.PDF ] | |
Hoja de datos destacado
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| EUP3458VIR1 | 1.2MHz Step-Down Converter | Eutech Microelectronics |
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