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V78XX-1000 Datasheet

Download or read online CUI V78XX-1000 DC switching regulator, non-isolated pdf datasheet.



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

Summary of Contents

Page 1

... PART NUMBER: V78XX-1000 series 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 ...

Page 2

... PART NUMBER: V78XX-1000 series MECHANICAL DRAWINGS 11.50 0.453 0.50 0.020 (TYP) 0.50 0.020 (3 PLCS) 1 2.54 0.100 (2 plcs) 2.15 0.085 (3 PLCS 3.21 0.126 THERMAL DERATING CURVE Temperature Derating Graph Operating Temp.( th 20050 SW 112 Ave. Tualatin, Oregon 97062 DESCRIPTION: DC switching regulator, non-isolated 8.90 0.350 17.50 0.689 4.10 (3 PLCS 0.30 0.012 (3 PLCS ...

Page 3

... PART NUMBER: V78XX-1000 series TYPICAL APPLICATION CIRCUIT Vin GND INPUT CAPACITOR (C1): A low ESR capacitor is recommended to keep the noise at the converter to a minimum. Ceramic capacitors are preferred but tantalum or low ESR electrolytic capacitors may also suffice. Place C1 as close as possible to pins 1 & 2. ...

Page 4

... PART NUMBER: V78XX-1000 series EFFICIENCY AND RIPPLE Efficiency 100 4. Efficiency VS Vin(Full Load) 100 200 400 600 Output Current(mA) Efficiency vs. Load (VinVin_min) 100 200 400 600 Output Current (mA) Efficiency vs. Load (VinVin_max) ...

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