N2112NKPC 20120801-S00003 No.A2104-1/16

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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

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.

LV5980MC

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

• 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

• External capacitor Soft-start

• Under voltage lock-out, thermal shutdown

Applications

• Set top boxes

• DVD/Blu-ray drivers and HDD

• LCD monitors and TVs

• Point of load DC/DC converters

• Office Equipment

• POS System

• White Goods

Application Circuit Example

Bi-CMOS IC

Low power consumption and high efficiency

Step-down Switching Regulator

Ordering number : ENA2104

40

30

20

10

50

60

70

80

90

1

2 3 5 7

10

2 3 5 7

100

2 3 5 7

1000

2 3 5 7

2 3 5 7

Load current -- mA

0

100

0.1

10000

VOUT = 5V

VIN=8V

VIN=1

2V

VIN=15V

Efficiency

VIN

GND

VIN

LV5980MC

PDR

C1: GRM31CB31E106K [murata]

C2: C2102JB0J106M [TDK]

L1: FDVE1040-100M [TOKO]

D1: SB3003CH [SANYO]

SW

FB

REF

COMP

SS/HICCUP

C1

C3

10

µF

×2

10

µF

×3

L1 10

µH

1

µF

C7

R1

D1

R3

5V

VOUT

C2

R2

47k

Ω

1

µF

C6

4.7nF

C5

2.2nF