K7812KT-500
WIDE INPUT, NON-ISOLATED & REGULATED
SMD PACKAGE SINGLE OUTPUT
FEATURES
●
Efficiency up to 95%
●
No need for heat sinks
●
0.5AMP SMD package
●
Wide input voltage range(14V~28V)
●
Adjustable output voltage
●
Remote ON/OFF control
●Short
circuit protection, Thermal shutdown
●
Very low shutdown current
●
Super low ripple and noise
RoHS
PRODUCT PROGRAM
Input Voltage (V)
Part Number
Nominal
K7812KT-500
24
Range
14-28
Normal
12
Output Voltage (V)
Adjust
Range
4.5-15.5
Current
(mA)
500
Efficiency (%)
Vin (min.)
95
Vin (max.)
90
Note:
1. Answer fo Vin-Vo>2V if needed to adjust the output voltage;
2. If input voltage above specified may cause permanent damage to the device.
3. K7812KT-500 is not allowed to operate under no load.
SPECIFICATIONS
APPLICATIONS
The
K7812KT-500
with
high
efficiency
switching regulators is ideally supply for space
constrained mobile applications. They are no
need for any heat sinks, even if operate at
+85°C. The additional features include remote
ON/OFF control and adjustable output voltage.
Super low ripple and noise of typically only
10mV and a shutdown input current of typically
only 15uA.
Characteristics
Input voltage range
Output voltage adjust range
Output voltage accuracy
Line regulation
Load regulation
Ripple and Noise
Short circuit protection mode
Short circuit protection
Output current Limit
Conditions
See selection guide
See selection guide
Input Voltage Range at full Load
Input Voltage Range at full Load
Nominal Input ,10% to 100% load
20MHZ bandwidth
Hiccup Mode
Continuous, automatic recovery
1.8
100%<->10% load
Normal input (3.3V, 5V output)
±30
15
160
-40°C to +85°C ambient
0.02
1000
ON: open or 1.5<Vc≤6V
OFF:GND or 0V<Vc<1V
2
15
1.1
-40
1.25
30
1.4
+85
+100
-55
+125
95
Free Air Convection
Epoxy Resin (UL94-V0)
(MIL-HDBK-217F,+25°C)
2000
2.3
K hours
g
%
o
Min.
14
4.5
Typ.
24
Max.
28
15.5
Units
V
V
±2
±0.2
±0.3
10
±3
±0.5
±0.75
25
mVp-p
%
A
±75
mV
mA
°C
%/°C
µF
µA
µA
V
MODEL SELECTION
K7812KT-500
Output Current
Package Style
Special Mark
Output Voltage
Product Series
Dynamic load stability
Quiescent current
Thermal shutdown
Temperature coefficient
Max capacitance load
ON/OFF control current
RECOMMENDED REFLOW
SOLDERING PROFILE
250
Shutdown input current
Pe a k .Te m p 2 4 0 C
10 Sec Max
220 C
ON/OFF Shutdown Threshold Voltage
Operating Temperature Range
Operating Case Temperature
Storage Temperature Range
200
Te m per a tur e ( C )
6 0 Se c M a x
( > 2 2 0 C)
150
C
100
Storage Humidity Range
50
Cooling
0
Time (sec.)
Case Material
MTBF
Package Weight
Remark:
The curve applies only to the hot air reflow soldering
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-38601850
Fax:86-20-38601272
Http://www.mornsun-power.com
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.
K7812KT-500
A/2-2012
Page 1 of 3
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
15.24±0.50
[0.60±0.020]
5.08[0.200]
0.25±0.10
[0.010±0.004]
10.16[0.400]
RECOMMENDED FOOTPRINT
10.16[0.400]
5.08[0.200]
A
8.50±0.20
(Top View)
1
5
1.80 [0.070]
1
5
0.60±0.10
[0.024±0.004]
2.54±0.20
[0.10±0.008]
10.05±0.20
[0.396±0.008]
(Side View)
7.25
[0.285]
7.00
[0.276]
1.00[0.039]
(Front View)
2.70
[0.106]
1.15±0.20
[0.045±0.008]
1.87±0.20
[0.074±0.008]
12.10±0.30
[0.476±0.012]
A
FOOTPRINT DETAILS
Pin
1
7,9
5
6
10
Function
Vin
GND
Vout
Vadj
ON/OFF
0.10[0.004]
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
Note:
grid:2.54*2.54mm
TUBE OUTLINE DIMENSIONS
TAPINGREEL DIMENSIONS
Taping dimension:
∅1.50
[0.059]
2.00 [0.079]
1.75 [0.069]
11.50 [0.453]
0.50 [0.020]
15.10[0.594]
15.65
[0.616]
24.00
[0.945]
12.40
[0.488]
16.00
[0.630]
∅1.50
[0.059]
10.70[0.421]
9.50 [0.374]
6.70 [0.264]
10.50 [0.413]
11.02[0.434]
10
9
7
6
[0.335±0.008]
0~5
10 9
7
6
7.65 [0.301]
Taping reel dimension:
4.72 [0.186]
29.40 [1.157]
∅100.00[3.937]
Note:
Unit :mm[inch]
General tolerances:
±0.50mm[±0.020inch]
L=530mm[20.866inch] Devices per tube quantity: 33pcs
L=220mm[8.661inch] Devices per tube quantity: 13pcs
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.
∅13.00
[0.512]
Note:
Unit :mm[inch]
General tolerances:
±0.50mm[±0.020inch]
Devices per reel quantity:500pcs
Inner packaging dimensions: L*W*H=365*350*105mm
;
Devices per tube quantity: 2000pcs
Outer packaging dimensions: L*W*H=390*360*245mm.
Devices per tube quantity: 4000pcs
∅21.50
[0.846]
STANDARD APPLICATION CIRCUIT
Vin
1
5
K7812KT-500
10
7,9
6
Vout
C1
10
μ
F/5 0 V
R1
C2
2 2
μ
F/2 5V
C3
1 0 0
μ
F
O N/O FF
C5
4 7 0 pF
R2
GND
1.
2.
3.
GND
C1,C2: Choose a ceramic type capacitors; C3 is require ,for best performance , use a 100μF or more capacitor please.
C1,C2 are required and should be placed close to the pins of the converter, with shortest possible traces.
No parallel connection or plug and play.
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K7812KT-500
A/2-2012
Page 3 of 3
∅330.00[12.992]
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