LSR7805 [MPD]
Low Cost, Miniature 500 mA Surface Mount POL Switching Regulators;
| 型号： | LSR7805 |
| 厂家： | 
MICROPOWER DIRECT, LLC |
| 描述： | Low Cost, Miniature 500 mA Surface Mount POL Switching Regulators |
| 文件： | 总2页 (文件大小：389K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Series
LSR7805
Low Cost, Miniature
500 mA Surface Mount
POL Switching Regulators
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Output
Parameter
Conditions
Min.
Typ.
±±.0
Max.
±ꢀ.0
Units
%
Key Features:
• Efficiency to 96%
• 0.5A Output Current
• Compact SMT Case
• LM78xx Replacement
• Wide Input Range
• Adjustable Output Voltage
• Short Circuit Protected
• Thermal Shutdown
• Low Noise
Output Voltage Accuracy
Output Voltage Adjustment Range
Line Regulation
Contact Factory For Information
Vin = Min to Max
Iout = 10% to 100%
±0.±
±0.ꢀ ±0.75
10
160
15
±0.5
%
%
mV P - P
°C
mA
%/°C
µF
Load Regulation
Ripple & Noise (±0 MHz)
Thermal Shutdown
Quiescent Current, Note ꢀ
Temperature Coefficient
Maximum Capacitive Load
Output Current Limit
Short Circuit Input Power
Output Short Circuit
General
±5
See Note ±
0.0±
1,000
1.8
0.5
A
W
1.8
• Low Low Cost
Continuous (Autorecovery)
Parameter
Conditions
Min.
Typ.
Max.
Units
Isolation Voltage
Not Isolated
Switching Frequency
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Lead Temperature
Cooling
410
kHz
Conditions
Min.
-40
Typ.
+±5
Max.
+85
+100
+1±5
ꢀ00
Units
°C
°C
°C
°C
Ambient
Case
-55
1.5 mm From Case For 10 Sec
Free Air Convection
RH, Non-condensing
Humidity
95
%
Physical
Case Size
Case Material
Weight
0.60 x 0.476 x 0.±85 Inches (15.±4 x 1±.10 x 7.±5 mm)
Non-Conductive Black Plastic (UL-94V0)
0.08 Oz (±.ꢀg)
Reliability Specifications
Parameter
Conditions
Min.
Typ.
Max.
Units
MTBF
MIL HDBK ±17F, ±5°C, Gnd Benign
±.0
MHours
Component Values
Typical Application Circuits
Ceramic Capacitors
MicroPower Direct
±9± Page Street
Suite D
Stoughton, MA 0±07±
USA
Model
Number
C1
C±
LSR7805-0ꢀW 10 µF/50V ±± µF/ 16V
LSR7805-05W 10 µF/50V ±± µF/ 16V
LSR7805-09W 10 µF/50V ±± µF/ 16V
LSR7805-1±W 10 µF/50V 10 µF/ ±5V
LSR7805-15W 10 µF/50V 10 µF/ ±5V
T: (781) ꢀ44-8±±6
F: (781) ꢀ44-8481
E: sales@micropowerdirect.com
W: www.micropowerdirect.com
Notes:
1. C1 & C2 are low ESR ceramic capacitors used to minimize
noise at the regulator. A tantalum or low ESR electrolytic
capacitor may also be used.
2. C1 & C2 are required and should be mounted as close to
the regulator pins as possible. C3 is required for optimum
performance, use 100 µF OR more.
3. R1 & R2 are used to adjust the regulator output. For sug-
gested values, please contact the factory.
www.micropowerdirect.com
Model Selection Guide
www.micropowerdirect.com
Output
Input Voltage (VDC)
Efficiency (%, Typ)
Model
Voltage Adj Range Current
Number
Nom.
1±
Range
Min Vin
90
Max Vin
75
(VDC)
ꢀ.ꢀ
(VDC)
(mA, Max)
500.0
LSR7805-0ꢀW
LSR7805-05W
LSR7805-09W
LSR7805-1±W
LSR7805-15W
Notes:
4.5 - ±8.0
6.0 - ±8.0
11.0 - ±8.0
14.0 - ±8.0
17.0 - ±8.0
1.8 - 5.5
1±
5.0
9.0
±.5 - 8.0
ꢀ.0 - 11.5
4.5 - 1ꢀ.5
4.5 - 15.5
500.0
500.0
500.0
500.0
94
81
±4
95
87
±4
1±.0
15.0
95
90
±4
96
9±
1. Load regulation is specified for an output load change of 10% to 100%.
2. Measured at an internal IC junction.
Characteristic Curves (Efficiency & Ripple)
3. Quiescent current is specified at 0% load for Vin = min to max.
4. This regulator is not designed to be used in parallel with another unit to increase output power.
5. The remote on/off control current is typically 2 µA. Shutdown
Min
Max
input current is 30 µA max. The On/Off shutdown threshold
voltage is 1.1V to 1.4V.
On
Off
Open or 1.5V<Vc<6.0 VDC
Ground or 0.0V<Vc<1.0 VDC
6. The input should not exceed the range given in the model
selection chart. Exceeding this limit could damage the unit.
Derating Curve
Efficiency vs Input Voltage (Full Load)
Efficiency vs Load (Vin = Nom)
Ripple vs Input Voltage (Full Load)
Ripple vs Load (Vin = Nom)
Mechanical Dimensions
Pin
Connection
Pin Function
1
5
6
+Vin
+Vout
Vadj
7
Gnd
9
Gnd
10
Control
Solder Layout
Notes:
•
•
•
All dimensions are typical in inches (mm)
Tolerance x.xx = 0.01 ( 0.25)
Pin 1 is marked by a “dot” or indentation on the side of the unit
MicroPower Direct
We Power Your Success - For Less!
±9± Page Street Ste D Stoughton, MA 0±07±
•
TEL: (781) ꢀ44-8±±6
•
FAX: (781) ꢀ44-8481
•
E-Mail: sales@micropowerdirect.com
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