MORNSUN K7809T-500 Smd package single output Datasheet

K78XXT-500 Series
WIDE INPUT, NON-ISOLATED & REGULATED
SMD PACKAGE SINGLE OUTPUT
RoHS
FEATURES
● Efficiency up to 96%
● No need for heat sinks
● 0.5AMP SMD package
● Wide input voltage range(4.5V~28V)
● Adjustable output voltage
● Remote ON/OFF control
●Short circuit protection, Thermal shutdown
● Very low shutdown current
● Super low ripple and noise
PRODUCT PROGRAM
Input Voltage (VDC) Output Voltage (VDC)
Part Number
Current
(mA)
Efficiency (%)(Typ.)
Nominal
Range
Normal
Adjust
Range
K7803T-500
12
4.5-28
3.3
1.8-5.5
500
90
75
K7805T-500
12
6.0-28
5.0
2.5-8.0
500
94
81
K7809T-500
24
11-28
9.0
3.0-11.5
500
95
87
K7812T-500
24
14-28
12
4.5-13.5
500
95
90
K7815T-500
24
17-28
15
4.5-15.5
500
96
92
Vin (min.) Vin (max.)
Note:
1. Answer for Vin-Vo>2V if needed to adjust the output voltage;
2. If input voltage above specified may cause permanent damage to the device.
3. K7812T-500, K7815T-500 is not allowed to operate under no load.
APPLICATIONS
The K78xxT-500 Series with high efficiency
switching regulators are ideally supply for space
constrained mobile applications. They are no
need for any heat sinks, even if operate at
SPECIFICATIONS
Characteristics
Conditions
Min.
Typ.
Input voltage range
See selection guide
4.5
12/24
Super low ripple and noise of typically only
Output voltage adjust range
See selection guide
1.8
10mV and a shutdown input current of typically
Output voltage accuracy
Input voltage range at full load
±2
±3
only 15uA.
Line regulation
Input voltage range at full load
±0.2
±0.5
Load regulation
Nominal Input ,10% to 100% load
±0.3
±0.75
Ripple and Noise
20MHz bandwidth
10
25
mVp-p
±75
mV
+85°C. The additional features include remote
ON/OFF control and adjustable output voltage.
MODEL SELECTION
Short circuit protection mode
K7805T-500
Short circuit protection
250
Output current limit
Dynamic load stability
100%<->10% load
±30
Output Voltage
Quiescent current
Normal input (3.3V, 5V output)
15
Product Series
Thermal shutdown
Internal IC junction
160
Temperature coefficient
-40°C to +85°C ambient
220 C
Temperature ( C)
200
60 Sec Max
(> 220 C)
150
100
Ti me (sec.)
ON/OFF shutdown threshold voltage
1.1
Operating temperature range
-40
Lead temperature
Storage humidity range
MORNSUN Science & Technology Co.,Ltd.
Case material
Address: No. 5, Kehui St. 1, Kehui development
MTBF
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-38601850
Fax:86-20-38601272
A
mA
°C
%/°C
μF
μA
2
Shutdown input current
Remark:
The curve applies only to the hot air reflow soldering
%
1000
ON: open or 1.5<Vc≤6V
OFF:GND or 0V<Vc<1V
15
30
μA
1.25
1.4
V
+85
+100
Storage temperature range
0
V
±0.02
Operating case temperature
50
V
1.8
Max capacitance load
ON/OFF control current
28
15.5
Continuous, automatic recovery
Package Style
Peak. Tem p 240 C
10 Sec Max
Units
Hiccup mode
Output Current
RECOMMENDED REFLOW
SOLDERING PROFILE
Max.
-55
o
C
+125
1.5mm from case for 10 seconds
300
95
Cooling
%
Free Air Convection
Plastic (UL94-V0)
(MIL-HDBK-217F,+25°C)
Package weight
2000
K hours
2.3
Http://www.mornsun-power.com
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78XXT-500
B/0-2012
Page 1 of 5
g
TYPICAL TEMPERATURE CURVE
EXTERNAL CAPACITOR TABLE
Temperature Derating Graph
Part
Number
C1
(ceramic capacitor)
C2
(ceramic capacitor)
K7803T-500
10uF/50V
22uF/16V
K7805T-500
10uF/50V
22uF/16V
K7809T-500
10uF/50V
22uF/16V
K7812T-500
10uF/50V
10uF/25V
K7815T-500
10uF/50V
10uF/25V
Operating Temp.( C )
STANDARD APPLICATION CIRCUIT
Vin
1
C1
10
Vout
5
K7805T-500
6
7 ,9
R1
C2
C3
1 0 0μ F
ON /O F F
C5
1.
2.
3.
R2
470p F
GND
GND
C1,C2: Choose a ceramic type capacitors; C3 is require ,for best performance , use a 100μF or more capacitor please.
C1,C2 are require and should be placed close to the pins of the converter, with shortest possible traces.
No parallel connection or plug and play.
ADJUSTMENT RESISTOR VALUES
Model
K7803T-500
K7805T-500
K7809T-500
K7812T-500
K7815T-500
Vo (nominal)
3.3V
5.0V
9V
12V
15V
Adjusted range
1.8V-5.5V
2.5V-8V
3V-11.5V
4.5V-13.5V
4.5V-15.5V
Regulated voltage
R1(kΩ)
1.8V
24.31
R2(kΩ)
2.5V
98.9
25.28
3.0V
364
47.6
3.1
3.3V
R1(kΩ)
R2(kΩ)
R1(kΩ)
R2(kΩ)
R1(kΩ)
R2(kΩ)
R1(kΩ)
67.3
5.79
3.6V
129.1
95.8
8.47
3.9V
59.1
140.9
11.8
4.5V
24.3
411
19.14
4.55
2.69
4.9V
15.25
2060
25.77
8.05
5.55
5.0V
14.05
27.3
9.16
6.17
5.1V
12.8
208.5
29.22
10.41
6.98
5.5V
8.65
58.5
37.8
15
10
15.57
70.8
29.8
18.5
6.5V
7.2V
7.8
115.3
43.5
26.2
8.0V
3.15
243.1
64.8
36.7
105
52.9
10.0V
9.0V
18.84
180.6
76.3
11.0V
4.47
370
111
11.5V
1.61
635
134.1
12.0V
R2(kΩ)
167.7
13.0V
40.6
13.5V
15
277.8
385
14.0V
586
14.5V
1128
15.0V
15.5V
88.2
Note: The above dates only are as reference, you could make corresponding adjustment with actual output when they are at practical
application.
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78XXT-500
B/0-2012
Page 2 of 5
TEST CONFIGURATIONS (TA=25°C)
1 Efficiency and Output Voltage Ripple Test
2 5 .4 m m
2 5 .4 m m
1 2 .7 m m
7 9
C1
GND
Copper str ip
1μ F
6
C5
+Vout
5
C2 C3
1 0μ F
C e r a m ic Ta n ta lu m
Scope
470pF
L oa d
DC/DC
Converter
1
2 .5 4m m
Vin
Ceramic
Copper strip
2
Start-up and Load Transient Response Test
50.8 mm
D C /DC
C onverter
7 9
C1
5
6
C5
GND
+Vout
Copper strip
Scope
C2 C3
470pF
Ceramic
Load
1
2.54 mm
Vin
Copper strip
APPLICATION EXAMPLE
1. To reduce output ripple, it is recommended to add a LC filter to output port.
L: Recommended parameter 10μH ~ 47μH.
1
C1
GND
DC/DC
Converter
7,9
6
C5
5
+Vout
470pF
100 μF
L
22μ F
L oa d
Vin
SHUTDOWN CONTROL
The ON/OFF pin provides several features for adjusting and sequencing the power supply, a user has the flexibility of using the ON/OFF pin as:
1) A digital on/off control by pulling down the ON/OFF pin with an open-drain transistor.
ON/OFF
2) Line UVLO. If desired to achieve a UVLO voltage, an resistor divider from Vin to ON/OFF to GND can be used to disable the converter until
a higher input voltage is achieved. For example, it is not useful for a converter with 12V output to start up with a 12V input voltage, as the
output cannot teach regulation. To enable the converter when the input voltage reaches 14V, a 51kΩ/5kΩ resistor divider from Vin to GND
can be connected to the ON/OFF pin. Both the precision 1.25V threshold and 150mV hysteresis are multiplied by the resistor ratio,
providing a proportional 12% hysteresis for any startup threshold. So, the turn off threshold would be between 12.3V to 15.7V.
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78XXT-500
B/0-2012
Page 3 of 5
DC/DC
C onv erter
1
51 KΩ
C1
10
7,9
5
+Vout
6
470pF
5 KΩ
100μ F
L oad
Vin
GND
3) Power supply sequencing. By connecting a small capacitor from ON/OFF to GND, the 2μA current source and 1.25V threshold can provide
a stable and predictable delay between startup of multiple power supplies. For example, a startup delay of roughly 64mS is provided using
100nF, and roughly 136mS by using 200nF.
DC /D C
Converter 5
1
10
C1
7,9
+Vout
6
C5
470pF
100μ F
Loa d
Vin
100nF
GND
CH1: Von/off
CH2: Vo
Delay time: 64mS
DC/ DC
1 Converter 5
10
C1
7, 9
+Vo ut
6
C5
47 0p F
10 0μ F
Load
Vin
20 0n F
GND
CH1: Von/off
CH2: Vo
Delay time: 136mS
CHARACTERISTIC CURVE (TA=25°C)
Efficiency and Output Voltage Ripple
Ripple (mV)
45
Efficiency (%)
100
40
90
35
80
70
K7803T-500
K7805T-500
K7809T-500
K7812T-500
K7815T-500
60
50
40
25
20
30
15
20
10
10
K7803T-500
K7805T-500
K7809T-500
K7812T-500
K7815T-500
30
5
50
0
55
0
36
0
40
0
44
0
48
0
24
0
28
0
32
0
80
12
0
16
0
20
0
50
20
0
Efficiency VS Load (Vin=rating)
Efficiency VS Output Load (Vin=Norm)
Load (mA)
0
20
50
80 120 160 200 240 280 320 360 400 440 480 500 550 Load (mA)
Ripple VS Load (Vin=Normal)
Output Voltage Ripple VS Output Load (Vin=Norm)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
K78XXT-500
B/0-2012
Page 4 of 5
Ripple (mV)
Efficiency (%)
45
100
95
40
90
35
85
K7803T-500
K7805T-500
K7809T-500
K7812T-500
K7815T-500
80
75
70
65
K7803T-500
K7805T-500
K7809T-500
K7812T-500
K7815T-500
30
25
20
15
60
55
10
50
5
45
0
40
4.5
6
8
10
12
14
16
17
20
22
24
26
28 Vin(V)
4.5
6
Efficiency VS Vin (Full Load)
8
10 12 14 16 17 20 22 24 26 28 Vin (V)
Ripple VS Vin ( Full Load)
Efficiency VS Input Voltage (Full Load)
Output Voltage Ripple VS Input Voltage (Full Load)
PACKAGE STYLE AND PINNING
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
5.08[0.200]
5.08[0.200]
6
1
5
0.60±0.10
[0.024±0.004]
10 9
1.80 [0.070]
7
0~5
9
(Top View)
[0.335±0.008]
10
8.50±0.20
A
1
5
1.00[0.039]
A
(Front View)
2.70
[0.106]
6
10.05±0.20
[0.396±0.008]
2.54±0.20
[0.10±0.008]
(Side View)
7.25
[0.285]
7.00
[0.276]
7
11.02[0.434]
10.16[0.400]
10.16[0.400]
0.25±0.10
[0.010±0.004]
15.24±0.50
[0.60±0.020]
FOOTPRINT DETAILS
Pin
1.15±0.20
[0.045±0.008]
1.87±0.20
[0.074±0.008]
Function
Vin
1
12.10±0.30
[0.476±0.012]
0.10[0.004]
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
TUBE OUTLINE DIMENSIONS
GND
7,9
5
6
Vout
10
ON/OFF
Vadj
Note:
grid:2.54*2.54mm
TAPINGREEL DIMENSIONS
Taping dimension:
∅1.50 [0.059]
1.75 [0.069]
11.50 [0.453]
2.00 [0.079]
0.50 [0.020]
15.65
[0.616]
9.50 [0.374]
10.50 [0.413]
6.70 [0.264]
10.70[0.421]
24.00
[0.945]
15.10[0.594]
12.40
[0.488]
16.00
[0.630]
Taping reel dimension:
∅1.50 [0.059]
7.65 [0.301]
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.
∅330.00[12.992]
4.72 [0.186]
∅13.00 [0.512]
∅21.50 [0.846]
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
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.
K78XXT-500
B/0-2012
Page 5 of 5
Similar pages