LV5980MX Datasheet, PDF (1/16 Pages) Sanyo Semicon Device – Low power consumption and high efficiency Step-down Switching Regulator

Ordering number : ENA1980
LV5980MX
Bi-CMOS IC
Low power consumption and high efficiency
Step-down Switching Regulator
Overview
LV5980MX is 1ch DC-DC 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 60μA, and low power consumption is achieved.
Features and Functions
• 1ch SBD rectification DC-DC converter IC with built-in power Pch MOSFET
• Typical value of light load mode current is 60μA
• 4.5V to 23V Operating input voltage range
• 100mΩ High-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
• If connect C-HICCUP to GND pin, then latch-off when over current • External capacitor Soft-start
• Under voltage lock-out, thermal shutdown and power good indication
Applications
• DVD/Blu-ray™ drivers and HDD
• Point of load DC/DC converters
• LCD monitors and TVs
• Office supplies
Application Circuit Example
IN
15V ^C1
10μF
×2
VIN
C3
1μF
POR
L1 10μH
SW
D1
R3
OUT
5V
C2
EN
PG
REF
LV5980MX
FB
10μF
×3
R2
R1
47kΩ
C7 C6 C5 C4
1μF 4.7nF 2.2nF 22nF
COMP
SS
C-HICCUP
GND
C1: GRM31CB31E106K [murata]
C3: C2102JB0J106M [TDK]
L1: C6-K5LGA [mitsumi]
D1: SBM30-03 [SANYO]
100
VIN = 15V,
VOUT = 5V
90
Efficiency
80
70
60
50
40
30
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
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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.
O1211 SY PC 20110912-S00011 No.A1980-1/16