LV5980MC_技术文档

Ordering number : ENA2104

Bi-CMOS IC

Low power consumption and high efficiency

LV5980MC

Step-down Switching Regulator

Overview

LV5980MC is 1ch DCDC converter with builtꢀin power Pch MOSFET. The recommended operating range is 4.5V to

23V. The maximum current is 3A. The operating current is about 63ꢀA, and low power consumption is achieved.

Features and Functions

• 1ch SBD rectification DCDC converter IC with builtꢀin power Pch MOSFET

• Typical value of light load mode current is 63ꢀA

• 100mꢁ Highꢀside switch

• The oscillatory frequency is 370kHz

• 4.5V to 23V Operating input voltage range

• Output voltage adjustable to 1.235V

• builtꢀin OCP circuit with PꢀbyꢀP method

• When PꢀbyꢀP is generated continuously, it shifts to the HICCUP operation

• External capacitor Softꢀstart

• Under voltage lockꢀout, thermal shutdown

Applications

• Set top boxes

• Point of load DC/DC converters

• White Goods

• DVD/Bluꢀray drivers and HDD

• Office Equipment

• LCD monitors and TVs

• POS System

Efficiency

100

Application Circuit Example

V

= 5V

OUT

V

IN

90

C1

C3

80

V

IN

1ꢀF

L1 10ꢀH

VOUT

5V

70

60

50

10ꢀF

×2

PDR

SW

FB

D1

R3

R2

C2

10ꢀF

×3

REF

40

30

20

LV5980MC

COMP

R1

SS/HICCUP

47kꢁ

10

0

C1: GRM31CB31E106K [murata]

C2: C2102JB0J106M [TDK]

L1: FDVE1040-100M [TOKO]

D1: SB3003CH [SANYO]

GND

C7

C6

C5

2

3

5 7

1

2

3

5 7

2

3

5 7

100

2

3

5 7

1000

2

3

5 7

10000

1ꢀF 4.7nF 2.2nF

0.1

10

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 20120801ꢀS00003 No.A2104ꢀ1/16

LV5980MC

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

V

Input voltage

V

max

25

IN

Allowable pin voltage

-SW

30

6

V

IN

-PDR

V

REF

6

V

SS/HICCUP

FB

REF

V

REF

V

COMP

Pd max

Topr

REF

V

Allowable power dissipation

Operating temperature

Storage temperature

Specified substrate *1

1.35

W

°C

-40 to +85

-55 to +150

Tstg

*1 Specified substrate : 50.0mm × 50.0mm × 1.6mm, fiberglass epoxy printed circuit board, 4 layers

Note 1 : Absolute maximum ratings represent the values which cannot be exceeded for any length of time.

Note 2 : Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,

high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.

Recommended Operating Conditions at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

V

Input voltage range

V

4.5 to 23

IN

Electrical Characteristics at Ta = 25°C, V = 15V

IN

Ratings

typ

Parameter

Symbol

Unit

min

max

Reference voltage

Internal reference voltage

Pch drive voltage

V

1.210

1.235

1.260

V

REF

PDR

I

= 0 to -5mA

V

-5.5

310

1.2

V

-5.0

V

IN

-4.5

430

2.4

OUT

IN

Saw wave oscillator

Oscillatory frequency

Soft start circuit

F

370

kHz

OSC

Soft start • source current

Soft start • sink current

UVLO circuit

I

_SC

1.8

ꢀA

SS

I

_SK

V

= 3V, SS = 0.4V

IN

300

SS

UVLO release voltage

UVLO lock voltage

V

FB = COMP

3.3

3.7

4.1

V

UVLON

UVLOF

3.02

3.42

3.82

Error amplifier

Input bias current

I

_IN

-100

100

-30

8

-10

220

-17

17

nA

ꢀA/V

ꢀA

EA

Error amplifier gain

G

380

-8

EA

_OSK

Output sink current

I

FB = 1.75V

FB = 0.75V

EA

Output source current

Over current limit circuit

Current limit peak

I

_OSC

30

ꢀA

EA

I

3.5

4.7

15

6.2

A

cycle

V

CL

HICCUP timer start-up cycle

HICCUP comparator threshold voltage

HICCUP timer discharge current

PWM comparator

N

V

CYC

0.15

0.25

tHIC

I

ꢀA

HIC

Maximum on-duty

D

94

%

MAX

ON

Output

Output on resistance

The entire device

R

I

= 0.5A

100

mꢁ

O

Light load mode consumption current

Thermal shutdown

I

No switching

63

83

ꢀA

°C

SLEEP

TSD

Design guarantee *2

170

*2 : Design guarantee: Signifies target value in design. These parameters are not tested in an independent IC.

No.A2104ꢀ2/16

LV5980MC

Package Dimensions

unit : mm (typ)

3424

Pd max – Ta

2.0

4.9

8

1.5

1.35

1.0

0.70

1

2

1.27

0.42

0.2

0.5

0

--40

--20

0

20

40

60

80

100

Ambient temperature, Ta ꢀꢀ °C

SANYO : SOIC8

Specified substrate

Top

Bottom

2^nd/3^rdlayers

No.A2104ꢀ3/16

LV5980MC

Pin Assignment

TOP VIEW

PDR

GND

1

2

3

4

8

7

6

5

SW

V

IN

LV5980MC

SS/HICCUP

COMP

REF

FB

SOIC8

Pin Function Description

Pin No,

Pin Name

Function

1

PDR

Pch MOSFET gate drive Voltage.

The bypass capacitor is necessarily connected between this pin and V

Ground Pin. Ground pin voltage is reference voltage

.

IN

2

3

GND

SS/HICCUP

Capacitor connection pin for soft start and setting re-startup cycle in HICCUP mode.

About 1.8uA current charges the soft start capacitor.

4

COMP

Error Amplifier Output Pin.

The phase compensation network is connected between GND pin and COMP pin.

Thanks to current-mode control, comp pin voltage would tell you the output current amplitude. Comp pin is connected

internally to an Init.comparator which compares with 0.9V reference. If comp pin voltage is larger than

0.9V, IC operates in “continuous mode”. If comp pin voltage is smaller than 0.9V,

IC operates in “discontinuous mode (low consumption mode)”.

Error amplifier reverse input pin.

5

FB

ICs make its voltage keep 1.235V.

Output voltage is divided by external resistances and it across FB.

Reference voltage.

6

7

REF

V

Supply voltage pin.

IN

It is observed by the UVLO function.

When its voltage becomes 3.7V or more, ICs startup in soft start.

8

SW

High-side Pch MOSFET drain Pin.

No.A2104ꢀ4/16

LV5980MC

Block Diagram

V

IN

Wake-up

Band-gap

REF

PDR

TSD

REF

uvlo.comp

Bias

1.235V

Pch Drive

enable

pwm comp

PbyP.comp

ILIM

Logic

HICCUP_SD

SS_END.comp

SS/HICCUP

HICCUP_SD

15pulse

counter

enable

ocp.comp

HICCUP_SD

error.amp

FB

slope

S

Q

Level-shift

clk

OSC

CK Q

R

SW

COMP

lnit.comp

PDR

gnd

GND

No.A2104ꢀ5/16

LV5980MC

Pin Equivalent Circuit

Pin No.

Pin name

Equivalent circuit

1.3MΩ

1

PDR

V

IN

1.5MΩ

10kΩ

PDR

GND

10kΩ

10Ω

2

3

GND

V

IN

GND

SS/HICCUP

V

IN

10kꢁ

1kꢁ

SS/HICCUP

GND

1kꢁ

4

COMP

V

IN

70kΩ

1kΩ

COMP

GND

5

FB

V

IN

10kΩ

1kΩ

FB

GND

Continued on next page.

No.A2104ꢀ6/16

LV5980MC

Continued from preceding page.

Pin No.

Pin name

Equivalent circuit

6

REF

V

IN

10Ω

REF

1MΩ

51kΩ

450kΩ

GND

7

8

V

IN

V

IN

GND

SW

V

IN

22mΩ

SW

No.A2104ꢀ7/16

LV5980MC

Detailed Description

Power-save Feature

The LV5980MC has Powerꢀsaving feature to enhance efficiency when the load is light.

By shutting down unnecessary circuits, operating current of the IC is minimized and high efficiency is realized.

Output Voltage Setting

Output voltage (V

) is configurable by the resistance R3 between V

and FB and the R2 between FB and GND.

(1)

OUT

V

is given by the following equation (1).

R3

OUT

R3

R2

V

= (1 +

) × V

= (1 +

REF

) × 1.235 [V]

OUT

R2

Soft Start

Soft start time (T ) is configurable by the capacitor (C5) between SS/HICCUP and GND. The setting value of T is

SS

given by the equation (2).

V

REF

1.235

T

= C5 ×

[ms]

(2)

1.8 × 10^ꢀ6

SS

I

SS

Hiccup Over-Current Protection

Overꢀcurrent limit (I ) is set to 4.7A in the IC. When the peak value of inductor current is higher than 4.7A for 15

CL

consecutive times, the protection deems it as over current and stops the IC. Stop period (T

) is defined by the

HIC

discharging time of the SS/HICCUP. When SS/HICCUP is lower than 0.15V, the IC starts up. When SS/HICCUP is

higher than 0.3V and then over current is detected, the IC stops again. And when SS/HICCUP is higher than 1.235V, the

discharge starts again. When the protection does not detect overꢀcurrent status, the IC starts up again.

The IC stops when the peak value of inductor current is higher

than overcurrent limit for 15 consecutive times.

I

CL

IL

* The stop time defined

by the discharging time

of the SS/HICCUP.

The IC starts up when SS/HICCUP is lower

than 0.15V.

T

HIC

SS/HICCUP

•

The IC stops when SS/HICCUP is higher

than 0.3V and overcurrent is detected.

The IC starts up again if no overcurrent is

detected.

•

1.235V

0.3V

0.15V

FB

No.A2104ꢀ8/16

LV5980MC

Design Procedure

Inductor Selection

When conditions for input voltage, output voltage and ripple current are defined, the following equations (3) give

inductance value.

V

ꢀ V

OUT

IN

L =

× T

(3)

ON

ꢂI

R

1

T

=

ON

{((V ꢀ V

IN

) ÷ (V

+ VF)) + 1} × F

OSC

OUT

F

: Oscillatory Frequency

: Forward voltage of Schottky Barrier diode

: Input voltage

OSC

VF

V

IN

OUT

: Output voltage

• Inductor current: Peak value (I

)

RP

Current peak value (I ) of the inductor is given by the equation (4).

RP

V

ꢀ V

2L

IN

OUT

I

= I

RP OUT

+

× T

(4)

(5)

ON

Make sure that rating current value of the inductor is higher than a peak value of ripple current.

• Inductor current: ripple current (∆I )

Ripple current (∆I ) is given by the equation (5).

R

V

ꢀ V

L

IN

OUT

ꢂI

=

× T

R

ON

When load current (I

) is less than 1/2 of the ripple current, inductor current flows discontinuously.

OUT

Output Capacitor Selection

Make sure to use a capacitor with low impedance for switching power supply because of large ripple current flows

through output capacitor.

This IC is a switching regulator which adopts current mode control method. Therefore, you can use capacitor such as

ceramic capacitor and OS capacitor in which equivalent series resistance (ESR) is exceedingly small.

Effective value is given by the equation (6) because the ripple current (AC) that flows through output capacitor is saw

tooth wave.

V

× (V ꢀ V

IN

L × F × V

OSC

)

1

2√3

OUT

IN

I

=

×

[Arms]

(6)

(7)

C_OUT

Input Capacitor Selection

Ripple current flows through input capacitor which is higher than that of the output capacitors.

Therefore, caution is also required for allowable ripple current value.

The effective value of the ripple current flows through input capacitor is given by the equation (7).

I

= √D (1 ꢀ D) × I

[Arms]

OUT

C_IN

T

V

OUT

ON

T

D =

=

V

IN

In (7), D signifies the ratio between ON/OFF period. When the value is 0.5, the ripple current is at a maximum. Make sure

that the input capacitor does not exceed the allowable ripple current value given by (7). With (7), if V =15V, V =5V,

IN

OUT

I

=1.0A and F

=370 kHz, then I

value is about 0.471Arms.

OUT

OSC

C_IN

In the board wiring from input capacitor, V to GND, make sure that wiring is wide enough to keep impedance low

because of the current fluctuation. Make sure to connect input capacitor near output capacitor to lower voltage bound due

IN

to regeneration current.When change of load current is excessive (I

: high ⇒ low), the power of output electric

OUT

capacitor is regenerated to input capacitor. If input capacitor is small, input voltage increases. Therefore, you need to

implement a large input capacitor. Regeneration power changes according to the change of output voltage, inductance of

a coil and load current.

No.A2104ꢀ9/16

LV5980MC

Selection of external phase compensation component

This IC adopts current mode control which allows use of ceramic capacitor with low ESR and solid polymer capacitor

such as OS capacitor for output capacitor with simple phase compensation. Therefore, you can design longꢀlife and high

quality stepꢀdown power supply circuit easily.

Frequency Characteristics

The frequency characteristic of this IC is constituted with the following transfer functions.

(1) Output resistance breeder

(2) Voltage gain of error amplifier

Current gain

: H

: G

R

VEA

MEA

(3) Impedance of phase compensation external element

(4) Current sense loop gain

(5) Output smoothing impedance

: Z

C

: G

CS

O

: Z

V

IN

1/G

CS

OSC

Current

sence loop

G

VER

MER

D

Q

FB

CLK

C

SW

R

V

OUT

COMP

V

REF

R

2

1

C

R

L

O

H

R

Z

C

Z

O

R

C

Closed loop gain is obtained with the following formula (8).

G = H • G

• Z • G • Z

R

MER

C

CS

O

V

R

L

REF

1

SC

=

• G

• R

+

• G •

CS

(8)

MER

C

V

1 + SC • R

OUT

C

O L

Frequency characteristics of the closed loop gain is given by pole fp1 consists of output capacitor C and output load

O

resistance R , zero point fz consists of external capacitor C of the phase compensation and resistance R , and pole fp2

L

C

consists of output impedance Z

of error amplifier and external capacitor of phase compensation C as shown in

ER

C

formula (8). fp1, fz, fp2 are obtained with the following equations (9) to (11).

1

fp1 =

(9)

2π • C • R

O

L

1

fz =

(10)

(11)

2π • C • R

C

1

fp2 =

2π • Z

ER

• C

C

No.A2104ꢀ10/16

LV5980MC

Calculation of external phase compensation constant

Generally, to stabilize switching regulator, the frequency where closed loop gain is 1 (zeroꢀcross frequency f ) should

ZC

be 1/10 of the switching frequency (or 1/5). Since the switching frequency of this IC is 370kHz, the zeroꢀcross frequency

should be 37kHz. Based on the above condition, we obtain the following formula (12).

V

R

L

REF

1

SC

• G

• R

+

• G •

CS

= 1

(12)

MER

C

V

1 + SC • R

OUT

C

O L

As for zeroꢀcross frequency, since the impedance element of phase compensation is RC >>1/SC , the following equation

C

(13) is obtained.

V

R

L

REF

• G

• R • G •

CS

= 1

(13)

MER

C

1 + 2π • f

• C • R

O L

OUT

ZC

Phase compensation external resistance can be obtained with the following formula (14), the variation of the formula (13).

Since 2π • f • C • R >> 1 in the equation (14), we know that the external resistance is independent of load resistance.

ZC

O

L

V

1 + 2π • f

• C • R

ZC O L

OUT

1

R

C

=

•

(14)

V

G

R

REF

MER

CS

L

When output is 5V and load resistance is 5ꢁ (1A load), the resistances of phase compensation are as follows.

G

= 2.7A/V, G

= 220ꢀA/V, f

= 37kHz

CS

MER

ZC

5

1

2.7

1 + 2 × 3.14 × (37 × 10³) × (30 × 10^ꢀ6) × 5

R

C

=

×

= 48.898…× 10³

220 × 10^ꢀ6

1.235

5

= 48.90 [kꢁ]

If frequency of zero point fz and pole fp1 are in the same position, they cancel out each other. Therefore, only the pole

frequency remains for frequency characteristics of the closed loop gain.

In other words, gain decreases at ꢀ20dB/dec and phase only rotates by 90º and this allows characteristics where oscillation

never occurs.

fp1 = fz

1

•

2π • C • R 2π • C • R

O

R

L

O

C

ꢀ6

• C

L

R

O 5 × (30 × 10 )

C

=

•

= 3.067…× 10^ꢀ9

48.9 × 10³

C

= 3.07 [nF]

The above shows external compensation constant obtained through ideal equations. In reality, we need to define phase

constant through testing to verify constant IC operation at all temperature range, load range and input voltage range. In the

evaluation board for delivery, phase compensation constants are defined based on the above constants. The zeroꢀcross

frequency required in the actual system board, in other word, transient response is adjusted by external compensation

resistance. Also, if the influence of noise is significant, use of external phase compensation capacitor with higher value is

recommended.

No.A2104ꢀ11/16

LV5980MC

Caution in pattern design

Pattern design of the board affects the characteristics of DCꢀDC converter. This IC switches high current at a high speed.

Therefore, if inductance element in a pattern wiring is high, it could be the cause of noise. Make sure that the pattern of the

main circuit is wide and short.

Orange : High Side MOSFET ON

(3)

Red

: High Side MOSFET OFF

L1

(2) V

OUT

Cout

(4)

GND

Cin

D1

C3

(6)

(1) V

IN

(5)

(1) Pattern design of the input capacitor

Connect a capacitor near the IC for noise reduction between V and the GND. The change of current is at the largest

IN

in the pattern between an input capacitor and V as well as between GND and an input capacitor among all the main

IN

circuits. Hence make sure that the pattern is as fat and short as possible.

(2) Pattern design of an inductor and the output capacitor

High electric current flows into the choke coil and the output capacitor. Therefore this pattern should also be as fat and

short as possible.

(3) Pattern design with current channel into consideration

Make sure that when High side MOSFET is ON (red arrow) and OFF (orange arrow), the two current channels runs

through the same channel and an area is minimized.

(4) Pattern design of the capacitor between V -PDR

IN

Make sure that the pattern of the capacitor between V and PDR is as short as possible.

IN

OUT

(5) Pattern design of the small signal GND

The GND of the small signal should be separated from the power GND.

(6) Pattern design of the FB-OUT line

FB

Wire the line shown in red between FB and OUT to the output capacitor as near as

possible.

Fig: FB-OUT Line

No.A2104ꢀ12/16

LV5980MC

Typical Performance Characteristics

Application Curves at Ta = 25°C

Efficiency

100

90

V

OUT

= 1.235V

V

= 1.8V

OUT

90

80

70

60

50

40

30

80

70

60

50

40

30

20

10

20

10

2 3 5 7

100

2 3 5 7

1000

2 3 5 7

10000

2 3 5 7

2 3 5 7 2 3 5 7

100 1000

2 3 5 7

10000

0.1

1

10

0.1

1

10

Load current ꢀꢀ mA

Efficiency

100

90

100

90

V

OUT

= 3.3V

V

= 5V

OUT

80

70

80

70

60

50

40

30

60

50

40

30

20

10

20

10

2 3 5 7

100

2 3 5 7

1000

2 3 5 7

10000

2 3 5 7

10

2 3 5 7

100

2 3 5 7

1000

2 3 5 7

10000

0.1

1

10

0.1

1

Load current ꢀꢀ mA

Operation Waveforms (Circuit from Typical Application, Ta = 25°C, V = 15V, V

IN

= 5V)

OUT

Light load mode

Output Voltage

I

= 10mA

I

= 10mA

OUT

V

SW

5V/DIV

OUT

20mV/DIV

I

L

0.5A/DIV

10ꢀs/DIV

No.A2104ꢀ13/16

LV5980MC

Discontinious current mode

OUT

Output Voltage

I

= 200mA

I

= 200mA

OUT

V

SW

5V/DIV

OUT

20mV/DIV

I

L

0.5A/DIV

2ꢀs/DIV

Continious current mode

Output Voltage

I

= 2A

I

= 2A

OUT

V

SW

5V/DIV

OUT

20mV/DIV

I

L

1A/DIV

L

1A/DIV

2ꢀs/DIV

Load Transient response

Soft start and shutdown

I

= 0.5 ꢀ 2.5A, Slew Rate = 100ꢀA

I

= 2A

OUT

V

IN

20V/DIV

V

OUT

0.2V/DIV

V

SS/HICCUP

2V/DIV

I

OUT

2A/DIV

V

OUT

2V/DIV

500ꢀs/DIV

2ms/DIV

Over current protection

OUT ꢀ GND short

V

OUT

5V/DIV

V

SS/HICCUP

5V/DIV

V

SW

20V/DIV

I

OUT

5A/DIV

20ms/DIV

No.A2104ꢀ14/16

LV5980MC

Characterization Curves at Ta = 25

°

C, V = 15V

IN

Light Load Mode Consumption Current

Internal Reference Voltage

90

80

1.26

1.25

1.24

1.23

70

60

50

40

30

20

1.22

1.21

10

0

--50

--25

0

25

50

75

100

125

150

--50

--25

0

25

50

75

100

125

150

Temperature ꢀꢀ °C

Output on resistance

Current limit peak

160

140

5

4.9

4.8

4.7

4.6

4.5

4.4

120

100

80

60

40

20

0

4.3

4.2

--50

0

25

50

75

100

--50

0

25

50

75

Temperature ꢀꢀ °C

Oscillatory Frequency

UVLO

400

390

380

370

3.8

3.7

3.6

3.5

3.4

UVLO release voltage

360

350

340

330

320

UVLO lock voltage

3.3

3.2

310

300

--50

0

25

50

75

100

--50

0

25

50

75

Temperature ꢀꢀ °C

Soft Start Source Current

HICCUP Timer Discharge Current

2

1.9

1.8

1.7

0.33

0.31

0.29

0.27

0.25

0.23

0.21

1.6

1.5

0.19

0.17

--50

0

25

50

75

100

--50

--25

0

25

50

75

100

125

Temperature ꢀꢀ °C

No.A2104ꢀ15/16

LV5980MC

Recommended foot pattern: SOIC8

SOLDERING FOOTPRINT*

1.52

0.060

7.0

4.0

0.275

0.155

0.6

0.024

1.270

0.050

mm

SCALE 6:1

(

inches

*For additional information on our Pd-Free strategy and soldering

details, please download the ON Semiconductor Soldering and

Mounting Techniques Reference Manual, SOLDERRM/D.

SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using

products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition

ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.

products described or contained herein.

Regarding monolithic semiconductors, if you should intend to use this IC continuously under high temperature,

high current, high voltage, or drastic temperature change, even if it is used within the range of absolute

maximum ratings or operating conditions, there is a possibility of decrease reliability. Please contact us for a

confirmation.

SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all

semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or

malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise

to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt

safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not

limited to protective circuits and error prevention circuits for safe design, redundant design, and structural

design.

In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are

controlled under any of applicable local export control laws and regulations, such products may require the

export license from the authorities concerned in accordance with the above law.

No part of this publication may be reproduced or transmitted in any form or by any means, electronic or

mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,

without the prior written consent of SANYO Semiconductor Co.,Ltd.

Any and all information described or contained herein are subject to change without notice due to

product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the

SANYO Semiconductor Co.,Ltd. product that you intend to use.

Upon using the technical information or products described herein, neither warranty nor license shall be granted

with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third

party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's

intellectual property rights which has resulted from the use of the technical information and products mentioned

above.

This catalog provides information as of September, 2012. Specifications and information herein are subject

to change without notice.

PS No.A2104ꢀ16/16


型号：	LV5980MC
厂家：	ONSEMI
描述：	Low power consumption and high efficiency Step-down Switching Regulator 低功耗，高效率降压开关稳压器稳压器开关
文件：	总16页 (文件大小：386K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LV5980MC [ONSEMI]

相关型号：

LV5980MD

LV5980MD-AH

LV5980MX

LV5990M

LV5990M-TLM-H

LV63M10K0BP343550

LV63M1200BPF-2030

LV63M1500BP4-2035

LV63M1500BPF42035

LV63M1500BPF42230

LV63M1800BP3-2035

LV63M1800BP3-2230