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PDF EUP2570OIR1 Data sheet ( Hoja de datos )
| Número de pieza | EUP2570OIR1 | |
| Descripción | 1MHz Boost Regulator | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EUP2570OIR1 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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EUP2570
1MHz Boost Regulator with 18V
Integrated FET Switch in Tiny SOT-23
DESCRIPTION
The EUP2570 switching regulator is a current-mode
boost converter operating at fixed frequency of 1MHz.
It is designed for small LCD bias supply and others
micropower step-up applications. The 18V switch
allows for output voltage as high as 17V. The
integrated 0.19Ω power switch and 2A current limit
will provide high efficiency over a wide range of load
conditions with high power density.
The EUP2570 integrated multiple protections, such as
OC, UVLO, OT, OVP, which will prevent damage in
the event of an output overload.
The EUP2570 is available in the tiny SOT23-5
package to provide the best solution for PCB space
saving and total BOM cost.
FEATURES
2.6V to 5.5V Input Range
18V Output Over Voltage Protection
Internal Soft-Start
Adjustable Output Voltage
Internal 0.19Ω 18V MOSFET Switch
1MHz Switching Frequency
2A Current Limit
Low-Profile Inductors and Capacitors
Peak Efficiency Up to 88%
Available in TSOT23-5 Package
RoHS Compliant and 100% Lead (Pb)-Free
Halogen-Free
APPLICATIONS
LCD Panel Bias Supplies
Local Boost Regulator
Digital Camera
Portable Applications
Typical Application Circuit
Figure 1. EUP2570 Typical 12V Application
DS2570 Ver1.0 Feb. 2012
1
1 page  
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Typical Operating Characteristics
(VIN=3.6V, L=6.8µH, CIN=4.7µF, COUT=10µF, VOUT=12V)
EUP2570
94%
92%
90%
88%
86%
84%
82%
80%
0
Efficiency vs. Load
VIN=2.7V
VIN=3.6V
VIN=5V
200 400
LOAD
600
220
210
200
190
180
170
160
150
140
2.5
RDSON vs. VIN
3.5 4.5
VIN(V)
5.5
ILIMIT vs. VIN
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
1.9
1.8
1.7
2.5 3 3.5 4 4.5 5 5.5
VIN(V)
700
600
500
400
300
200
100
2.5
Max Load Current vs. VIN
3 3.5 4 4.5 5
VIN(V)
5.5
RDSON vs. Temperature
270
250
230
210
190
170
150
VIN=3.6V
130 VIN=5V
110
-40 -20 0 20 40 60 80 100 120
T EM P ERAT URE
VIN=3.6V Soft Start
1ms/div
VEN=3.6V
5V/div
VOUT
5V/div
VFB
1V/div
IIN
1A/div
DS2570 Ver1.0 Feb. 2012
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet EUP2570OIR1.PDF ] | |
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