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PDF LV1482SN Data sheet ( Hoja de datos )
| Número de pieza | LV1482SN | |
| Descripción | Synchronous Step-Down DC/DC Converter | |
| Fabricantes | ZillTek | |
| Logotipo |  |
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LV1482SN
2A, 20V, 550KHz, Synchronous Step-Down DC/DC Converter
FEATURES
● 4.75V to 20V input voltage
● Output adjustable from 0.923V to 18V
● Output current up to 2A
● Integrated 0.085Ω power MOSFET switches
● Shutdown current 1μA typical
● Efficiency up to 93%
● 550KHz fixed frequency
● Programmable soft start
● Over current protection
● Over temperature protection
● RoHS Compliant and 100% Lead (Pb) Free
APPLICATIONS
● Distributed power systems
● Networking systems
● FPGA, DSP, ASIC power supplies
● Notebook computers
● Green electronics or appliance
ORDERING INFORMATION
PART
PACKAGE RoHS
LV1482SN SOP-8L (EP) Yes
Ship, Quantity
Tape and Reel
DESCRIPTION
The LV1482SN is a 550KHz fixed frequency
PWM synchronous step-down regulator. The
LV1482SN is operated from 4.75V to 20V, the
generated output is adjustable from 0.923V to
18V, and the output current can be up to 2A.
The integrated two MOSFET switches is with
turn on resistance of 0.085Ω. Current mode
control provides fast transient response and
cycle-by-cycle over current protection. The
shutdown current is 1μA typical. Adjustable
soft start prevents inrush current at turn on.
The LV1482SN is with thermal shutdown.
The LV1482SN is RoHS compliant and 100%
lead (Pb) free.
Pins Configuration
Top View (with EP)
BS 1
8 SS
IN 2
SW 3
GND 4
Exposed
Pad
connect
to GND
7 EN
6 COMP
5 FB
Typical Application Circuit
Note: R5 and C7 are optional.
Details please see the DVT report.
DS-21; Apr. 09, 2012
Copyright © ZillTek Technology Corp.
-1-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: [email protected]
1 page  
Steady State Test
Short Circuit Protection
Vin
Vout
Vsw
Isw
SW Current Limit = 4.06A (Vin=12V, Vout=5.0V)
Vout
Isw
Efficiency
LV1482SN
DS-21; Apr. 09, 2012
Copyright © ZillTek Technology Corp.
-5-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: [email protected]
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LV1482SN.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
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