rev.
page
date
1 of 4
04/2008
PART NUMBER:
V78XX-1000 series
DESCRIPTION:
DC switching regulator, non-isolated
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.
features
·
efficiency
up to 95%
·no need for heatsinks
·wide input range
·short circuit protection
·thermal shutdown
·low ripple and noise
·pin compatible to LM78XX
series
·non-isolated
model
number
V7803-1000
V7805-1000
V7806-1000
V7809-1000
V7812-1000
input voltage
range
4.75~28 Vdc
6.5~32 Vdc
8~32 Vdc
11~32 Vdc
15~32 Vdc
output
voltage
3.3 Vdc
5 Vdc
6.5 Vdc
9 Vdc
12 Vdc
output
current
1000 mA
1000 mA
1000 mA
1000 mA
1000 mA
efficiency
Vin_min
Vin_max
90%
83%
93%
88%
94%
95%
95%
90%
92%
94%
OUTPUT SPECIFICATIONS
item
output voltage accuracy
line regulation
load regulation
output ripple
short circuit protection
short circuit input power
output current limit
switching frequency
dynamic load stability
quiescent current
thermal shutdown
temperature coefficient
max load capacitance
conditions
min.
at 100% load
Vin = min. to max. at full load
10% to 100% full load
20 MHz bandwidth, output w/ 10μF cap
continuous, auto recovery upon removal of short
load impedance is≤ 0.1Ω
subject to over-temp shutdown
fixed switching frequency topology
280
100%<->10% load
Vin_min to Vin_max at no load
internal IC junction
-40°C ~ 85°C ambient
typ.
±2
±0.2
±0.4
20
0.5
330
5
150
max.
±3
±0.4
±0.6
35
1.2
2000
450
±100
7
0.02
2000
unit
%
%
%
mVp-p
W
mA
KHz
mV
mA
°C
%/°C
μF
GENERAL SPECIFICATIONS
item
operating temperature range
operating case temperature
storage temperature range
cooling
solderability
storage humidity range
case material
case thermal impedance
MTBF
package weight
conditions
see derating curve
min.
-40
-40
-55
typ.
max.
85
100
125
300
95
50
at 25°C per MIL-HDBK-217F
2,000,000
3.7
unit
°C
°C
°C
°C
%
°C/W
hours
grams
free air convection
1.5 mm from case for 10 seconds
relative humidity, non-condensing
plastic (UL94-V0)
10
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2382
CUI [ CUI INC ]
