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PDF EUP3412 Data sheet ( Hoja de datos )
| Número de pieza | EUP3412 | |
| Descripción | Synchronous Step-Down Converter | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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EUP3412
1.5A/1.5MHz, Synchronous
Step-Down Converter with Soft Start
DESCRIPTION
The EUP3412 is a synchronous current mode
step-down dc-dc converter, capable of driving 1.5A load
current with excellent line and load regulation.
Operating with an input voltage range between 2.7V
and 5.5V, the device is ideal for portable applications
powered by a single Li-Ion battery cell or by 3-cell
NiMH/NiCd batteries. The EUP3412 operates at a fixed
switching frequency of 1.5MHz and PWM operation
provides very low output ripple voltage for noise
sensitive applications. The internal integrated
synchronous switch increases efficiency while
eliminates the need for an external Schottky diode. The
EUP3412 is available in the 10-pin MSOP and 10-pin
TDFN package.
FEATURES
High Efficiency up to 96%
1.5A Available Load Current
300µA Typical Quiescent Current
1.5MHz Constant Switching Frequency
2.7V to 5.5V Input Voltage Range
Adjustable Output Voltage as Low as 0.7V
100% Duty Cycle Low Dropout Operation
No Schottky Diode Required
Short Circuit and Thermal Protection
Excellent Line and Load Transient Response
＜1µA Shutdown Current
Soft Start Function
Available in MSOP-10 and TDFN-10 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Cellular and Smart Phones
Portable Media Players/ MP3 Players
Digital Still and Video Cameras
Portable Instruments
WLAN PC Cards
Typical Application Circuit
DS3412 Ver1.4 May 2012
Figure 1.
1
1 page  
Typical Operating Characteristics
EUP3412
DS3412 Ver1.4 May 2012
5
5 Page 
TDFN-10
EUP3412
SYMBOLS
A
A1
D
D1
E
E1
L
b
e
MILLIMETERS
MIN.
Normal MAX.
0.70 0.75 0.80
0.00 - 0.05
2.90 3.00 3.10
2.30 2.60 2.65
2.90 3.00 3.10
1.50 1.65 1.75
0.30 0.40 0.50
0.18 - 0.30
0.50
MIN.
0.028
0.000
0.114
0.091
0.114
0.059
0.012
0.007
INCHES
Normal
0.030
-
0.118
0.102
0.118
0.065
0.016
-
0.020
MAX.
0.031
0.002
0.122
0.104
0.122
0.069
0.020
0.012
DS3412 Ver1.4 May 2012
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet EUP3412.PDF ] | |
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