Crystek K78X2-1000 Wide input non-isolated & regulated single output Datasheet

K78XX-1000(L) Series
WIDE INPUT NON-ISOLATED & REGULATED
SINGLE OUTPUT
FEATURES
RoHS
Product Program
● Efficiency up to 97%
● Operating temperature: -40°C ~ +85°C
Input Voltage(VDC)
Part Number
Nominal
● Pin-out compatible with LM78XX Linear
● Short circuit protection, thermal shutdown
Output
Efficiency (%)(Typ)
Range
Voltage
(VDC)
Current
(mA)
Vin
(min.)
Vin
(max.)
K7801-1000(L)
12
4.75-26
1.5
1000
80
71
● Micro miniature SIP package
K78X2-1000(L)
12
4.75-26
1.8
1000
83
74
● No heatsink required
K7802-1000(L)
12
4.75-28
2.5
1000
88
80
● Industry standard pinout
K7803-1000(L)
24
4.75~28
3.3
1000
90
83
● MTBF>2,000,000 hours
K7805-1000(L)
24
6.5~32
5.0
1000
93
88
K78X6-1000(L)
24
9.0~32
6.5
1000
94
90
K7809-1000(L)
24
12~32
9.0
1000
95
92
K7812-1000(L)
24
16~32
12
1000
96
94
K7815-1000(L)
24
20~32
15
1000
97
94
● Low ripple and noise
APPLICATIONS
Add suffix “L” for 90° bend pins, for example: K7805-1000L.
The K78xx-1000(L) series high efficiency
switching regulators are ideally suited to replace
78xx linear regulators and are pin compatible.
Output Specifications
The efficiency of up to 97% means that very little
Item
Test conditions
Min.
energy is wasted as heat so there is no need for
Output voltage accuracy
100% full load
±2
±3
any heatsinks with their additional space and
Line regulation
Vin=min. to max. at full load
±0.2
±0.4
mounting costs.
Load regulation*
10% to 100% load
±0.4
±0.6
Ripple & Noise
20MHz bandwidth
(refer to figure 3)
25
35
mVp-p
0.5
1.8
W
Short circuit input power**
MODEL SELECTION
K7805-1000
Output Current
Output Voltage
Product Series
Thermal shutdown
Internal IC junction
Switching frequency
100% full load
Address: No. 5, Kehui St. 1, Kehui development
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-28203030
Fax:86-20-28203068
Http://www.mornsun-power.com
* K78X2-1000 is ±0.75%(Max),
%
Vin= min. to max.
(at full load)
°C
280
330
450
Vout:1.5V~3.3V
3000
Vout:5V~15V
2000
5
-40°C ~ +85°C ambient
Max capacitance load
MORNSUN Science & Technology Co.,Ltd.
Units
150
Quiescent current
Temperature coefficient
Max.
Continuous, automatic
recovery
Short circuit protection
Output current limit
Typ.
KHz
mA
8
mA
±0.02
%/°C
1000
μF
Max.
Units
95
%
** K7801-1000 is 4W(Max).
COMMON SPECIFICATIONS
Item
Test conditions
Min.
Typ.
Storage humidity
Operating temperature
Power derating (above 71°C)
-40
85
Operating case temp.
100
Storage temperature
Lead temperature
-55
1.5mm from case for 10 seconds
300
Cooling
Free air convection
Case material
MTBF
°C
125
Plastic (UL94-V0)
25℃(MIL-HDBK-217F)
Weight
The copyright and authority for the interpretation of the products are reserved by MORNSUN
2000
k hours
3.7
g
Specifications subject to change without notice.
K78XX-1000(L)
B/1-2011
Page 1 of 4
TYPICAL CHARECTERISTICS
EXTERNAL CAPACITOR TABLE
Temperature Derating Graph
Operating Temp.( C )
(figure1)
Part Number
C1
(Ceramic capacitor)
C2
(Ceramic capacitor)
K7801-1000(L)
10µF/50V
22µF/6.3V
K78X2-1000(L)
10µF/50V
22µF/6.3V
K7802-1000(L)
10µF/50V
22µF/6.3V
K7803-1000(L)
10µF/50V
22µF/6.3V
K7805-1000(L)
10µF/50V
22µF/16V
K78X6-1000(L)
10µF/50V
10µF/16V
K7809-1000(L)
10µF/50V
10µF/16V
K7812-1000(L)
10µF/50V
10µF/25V
K7815-1000(L)
10µF/50V
10µF/25V
TYPICAL APPLICATION CIRCUIT
1
+Vin
K7 8 XX-1 0 00 (L )
C1
3
+Vo ut
C2
2
GN D
GND
(figure 2)
1. C1 and C2 are required and should be fitted close to the converter pins.
2. The capacitance of C1, C2 sees external capacitor table, it can be increased properly if required, and tantalum or low ESR electrolytic
capacitors may also suffice.
3. No parallel connection or plug and play.
TEST CONFIGURATIONS (TA=25°C)
1
Efficiency and Output Voltage Ripple Test
25.4mm
25.4 mm
12.7mm
DC/DC
Converter
Copp er str ip
1μ F
2
C1
+Vout
3
C2
10μ F
Ceramic Tantalum
Scope
Load
1
2.54 mm
+Vin
GND
Cop per str ip
(figure 3)
Start-up and Load Transient Response Test
5 0.8 mm
1
C1
DC/DC
Converter
3
2
Co pp er str ip
C2
+Vout
Scop e
L oad
+Vin
2 .5 4 mm
2
GND
Co pp er str ip
(figure 4)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78XX-1000(L)
B/1-2011
Page 2 of 4
OUTPUT RIPPLE REDUCTION
1
DC/DC
Converter 3
2
C1
L
+Vout
C2
22μ F
Lo ad
+Vin
GND
To reduce output ripple, it is recommended to add a LC filter in output port.
L: Recommended parameter 10μH ~ 47μH.
(figure 5)
CHARACTERISTICS CURVE
Efficiency
Ripple
Ripple VS. Vin(full load)
Efficiency VS. Vin(full load)
Ripple(mV)
Efficiency(%)
30
100
K7801-1000
K7801-1000
90
25
K78X2-1000
K78X2-1000
80
K7802-1000
K7803-1000
70
K7805-1000
K78X6-1000
60
K7802-1000
20
K7803-1000
15
K7805-1000
K78X6-1000
10
K7809-1000
K7809-1000
K7812-1000
50
K7812-1000
5
K7815-1000
K7815-1000
40
4.75
9
11
15
18
22
26
30
0
4.75
Vin(V)
11
30
K78X2-1000
K7803-1000
K7805-1000
K7809-1000
K7812-1000
50
30
Vin(V)
K7802-1000
20
K7803-1000
K7805-1000
15
K78X6-1000
K78X6-1000
60
26
K78X2-1000
25
K7802-1000
70
22
K7801-1000
K7801-1000
80
18
Ripple(mV)
Efficiency(%)
90
15
Ripple vs Load(Vin=Vin-nominal)
Efficiency VS.Load(Vin=Vin-nominal)
100
9
K7809-1000
10
K7812-1000
5
K7815-1000
K7815-1000
0
40
50
100 200 300 400 500 600 700 800 900 1000 Load(mA)
50 100 200 300 400 500 600 700 800 900 1000 Load(mA)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78XX-1000(L)
B/1-2011
Page 3 of 4
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
K78XX-1000
17.50
[0.689]
4.10[0.161]
11.50
[0.453]
5.08 [0.200]
K78XX-1000L
1 2 3
11.50[0.453]
11.50
[0.453]
17.50[0.689]
1.35[0.053]
3 2 1
0.30[0.012]
5.08[0.200]
Ф1.00[Ф0.039]
0.50[0.020]
(Bottom View)
Note:
grid:2.54*2.54mm.
FOOT PRINT DETAIL S
Note:
Unit:mm[inch]
Pin section tolerances: 0.10mm[ 0.004inch]
General tolerances: 0.25mm[ 0.010inch]
Pin
1
Function
+Vin
2
3
GND
+Vout
TUBE OUTLINE DIMENSIONS
K78XX-1000L
K78XX-1000
9.00
[0.354]
K78XX-1000L
11.60 [0.457]
(Bottom View)
Note:
Unit:mm[inch]
Pin section tolerances: 0.10mm[ 0.004inch]
General tolerances: 0.25mm[ 0.010inch]
20.60 [0.811]
23.60 [0.929]
20.20 [0.795]
26.20 [0.031]
5.08 [0.200]
1 2 3
11.50
[0.453]
4.10[0.161]
0.50[0.020]
0.30 [0.012]
17.50[0.689]
19.00[0.748]
11.20 [0.441]
5.20 [0.205]
9.00[0.354]
2.15[0.085]
Ф1.00[Ф0.039]
1 2 3
2.15[0.085]
0.50[0.020]
5.08[0.200]
9.00
[0.354]
K78XX-1000
11.20 [0.441]
16.20 [0.638]
6.20 [0.244]
Note:
Unit :mm[inch]
General tolerances: 0.50mm[ 0.020inch]
L=530mm[20.866inch] Devices per tube quantity: 44pcs
L=220mm[8.661inch] Devices per tube quantity: 17pcs
Short tube inner packaging dimensions: L*W*H=255*170*80mm
Short tube outer packaging dimensions(with six inner packaging boxes):
L*W*H=375*280*270mm
Long tube inner packaging dimensions: L*W*H=580*200*100mm
Long tube outer packaging dimensions(with two inner packaging boxes):
L*W*H=600*215*220mm
Long tube outer packaging dimensions(with three inner packaging boxes):
L*W*H=600*215*325mm
Note:
1. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
2. In this datasheet, all the test methods of indications are based on corporate standards.
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78XX-1000(L)
B/1-2011
Page 4 of 4
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