LA5777 View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LA5777

Separately-excited Step-down Switching Regulator (5V)

SANYO -> Panasonic 

LA5777

Electrical Characteristics at Ta = 25°C, VO = 3.3V

Parameter

Symbol

Conditions

Reference voltage

VO

Efficiency

η

Switching frequency

f

Switching frequency when

short-circuit protection is active

Line regulation

Load regulation

Output voltage temperature

coefficient

Ripple attenuation factor

fshort

∆VOLINE

∆VOLOAD

∆VO/∆Ta

RREJ

Output leak current

IOleak

Current limiter operating voltage

IS

Operating current

IVIN

Standby current

ISTBY

ENA pin LOW voltage range

VENAL

ENA pin HIGH voltage range

VENAH

Thermal shutdown operating

TSD

temperature

Thermal shutdown Hysteresis

∆TSD

width

* Design target value: No measurement made.

VIN = 15V, IO = 1.0A

VIN = 15V, IO = 1.0A

VIN = 15V, IO = 1.0A

VIN = 15V, VOS = 0V

VIN = 8 to 20V, IO = 1.0A

VIN = 15V, IO = 0.5 to 1.5A

Designed target value. *

f = 100 to 120Hz

VIN = 15V, SWOUT = -0.4V

VIN = 15V

VIN = 15V

VIN = 15V, ENA = 5V

Designed target value. *

Designed target value. *

min

4.80

128

15

Ratings

typ

5.00

84

160

30

40

10

±0.5

45

3.1

5.6

50

2.4

165

15

Unit

max

5.20

V

%

192 kHz

45 kHz

100 mV

30 mV

mV/°C

dB

50 µA

A

mA

100 µA

0.6

V

VIN

V

°C

°C

Package Dimensions

unit : mm (typ)

3079A

10.4max

10.0

3.6

4.5

1.3

0.9

2.7

1

5

(1.6)

0.8

0.45

4.5

1.7

8.4

Pd max -- Ta

10.0

8.0 100×100×1.5mm3

7.5

Infinitely large heat sink

θjc=5°C/W

6.0 50×50×1.5mm3

5.6

Al heat

sink plate

4.0 30×30×1.5mm3

3.3

tightening

torque

39N.cm

2.0 No heat sink

1.75

With

silicone

grease

0

--30 0

applied.

20 40 60 80 100 120 140 160

Ambient temperature, Ta -- °C PCA00833

SANYO : TO-220-5H

Pin Assignment

(1) VIN (2) SWOUT (3) GND (4) VOS (5) ENA

No.A0497-2/4

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