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LV5980MC fiches techniques PDF

Sanyo - Step-down Switching Regulator

Numéro de référence LV5980MC
Description Step-down Switching Regulator
Fabricant Sanyo 
Logo Sanyo 





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LV5980MC fiche technique
Ordering number : ENA2104
LV5980MC
Bi-CMOS IC
Low power consumption and high efficiency
Step-down Switching Regulator
Overview
LV5980MC is 1ch DCDC converter with built-in power Pch MOSFET. The recommended operating range is 4.5V to
23V. The maximum current is 3A. The operating current is about 63µA, and low power consumption is achieved.
Features and Functions
1ch SBD rectification DCDC converter IC with built-in power Pch MOSFET
Typical value of light load mode current is 63µA
4.5V to 23V Operating input voltage range
100mHigh-side switch
Output voltage adjustable to 1.235V
The oscillatory frequency is 370kHz
built-in OCP circuit with P-by-P method
When P-by-P is generated continuously, it shifts to the HICCUP operation
External capacitor Soft-start
Under voltage lock-out, thermal shutdown
Applications
Set top boxes
Point of load DC/DC converters
White Goods
DVD/Blu-raydrivers and HDD
Office Equipment
LCD monitors and TVs
POS System
Application Circuit Example
VIN
C1
10µF
×2
C3
1µF
R1
47k
C7 C6 C5
1µF 4.7nF 2.2nF
PDR
VIN L1 10µH
VOUT
SW
D1
5V
R3 C2
REF
LV5980MC
FB
COMP
10µF
×3
R2
SS/HICCUP
GND
C1: GRM31CB31E106K [murata]
C2: C2102JB0J106M [TDK]
L1: FDVE1040-100M [TOKO]
D1: SB3003CH [SANYO]
100
VOUT = 5V
90
80
70
Efficiency
VIN=8V
VIN=15V
VIN=12V
60
50
40
30
20
10
0
0.1 2 3 5 7 1 2 3 5 710 2 3 5 7100 2 3 5 71000 2 3 5 710000
Load current -- mA
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
N2112NKPC 20120801-S00003 No.A2104-1/16

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