rev.

page

date

rev.

page

date

DESCRIPTION: DC switching regulator, non-isolated

1 of 4

04/2008

20050

phone

phone 503.612.2300 fax

fax 503.612.2382

PART NUMBER: V78XX-1000 series

features

·no need for heatsinks

·wide input range

·short circuit protection

·thermal shutdown

·low ripple and noise

·pin compatible to LM78XX

series

·non-isolated

model

input voltage

output

output

efficiency

number

range

voltage

current

Vin_min

Vin_max

V7803-1000

4.75~28 Vdc

3.3 Vdc

1000 mA

90%

83%

V7805-1000

6.5~32 Vdc

5 Vdc

1000 mA

93%

88%

V7806-1000

8~32 Vdc

6.5 Vdc

1000 mA

94%

90%

V7809-1000

11~32 Vdc

9 Vdc

1000 mA

95%

92%

V7812-1000

15~32 Vdc

12 Vdc

1000 mA

95%

94%

OUTPUT SPECIFICATIONS

item

conditions

min.

typ.

max.

unit

output voltage accuracy

at 100% load

±2

±3

%

line regulation

Vin = min. to max. at full load

±0.2

±0.4

%

load regulation

10% to 100% full load

±0.4

±0.6

%

output ripple

20 MHz bandwidth, output w/ 10μF cap

20

35

mVp-p

short circuit protection

continuous, auto recovery upon removal of short

short circuit input power

load impedance is

≤ 0.1Ω

0.5

1.2

W

output current limit

subject to over-temp shutdown

2000

mA

switching frequency

fixed switching frequency topology

280

330

450

KHz

dynamic load stability

100%<->10% load

±100

mV

quiescent current

Vin_min to Vin_max at no load

5

7

mA

thermal shutdown

internal IC junction

150

°C

temperature coefficient

-40°C ~ 85°C ambient

0.02

%/°C

max load capacitance

2000

μF

GENERAL SPECIFICATIONS

item

conditions

min.

typ.

max.

unit

operating temperature range

see derating curve

-40

85

°C

operating case temperature

-40

100

°C

storage temperature range

-55

125

°C

cooling

free air convection

solderability

1.5 mm from case for 10 seconds

300

°C

storage humidity range

relative humidity, non-condensing

10

95

%

case material

plastic (UL94-V0)

case thermal impedance

50

°C/W

MTBF

at 25°C per MIL-HDBK-217F

2,000,000

hours

package weight

3.7

grams

description

The V78XX series of switching regulators are

designed to replace 78XX linear regulators,

with the objective of drop-in replacement

without the need for a heatsink, because the

V78XX series features high efficiency under

all line conditions. Built-in short-circuit and

over-temperature protections ensure very

rugged operations. Additionally, low ripple

and noise performance make the parts useful

in a wide range of applications.