LSR7805 Datasheet, PDF (2/2 Pages) MicroPower Direct, LLC – Low Cost, Miniature 500 mA Surface Mount POL Switching Regulators

Model Selection Guide
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Model
Number
Input Voltage (VDC)
Output
Efficiency (%, Typ)
Nom.
Range
Voltage Adj Range Current
(VDC)
(VDC)
(mA, Max) ^{Min Vin Max Vin}
LSR7805-03W 12 4.5 - 28.0 3.3 1.8 - 5.5 500.0
90
75
LSR7805-05W 12 6.0 - 28.0 5.0 2.5 - 8.0 500.0
94
81
LSR7805-09W 24 11.0 - 28.0 9.0 3.0 - 11.5 500.0
95
87
LSR7805-12W 24 14.0 - 28.0 12.0 4.5 - 13.5 500.0
95
90
LSR7805-15W 24 17.0 - 28.0 15.0 4.5 - 15.5 500.0
96
92
Notes:
1. Load regulation is specified for an output load change of 10% to 100%.
2. Measured at an internal IC junction.
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
input current is 30 µA max. The On/Off shutdown threshold
voltage is 1.1V to 1.4V.
On
Min
Max
Open or 1.5V<Vc<6.0 VDC
6. The input should not exceed the range given in the model _Off
selection chart. Exceeding this limit could damage the unit.
Ground or 0.0V<Vc<1.0 VDC
Characteristic Curves (Efficiency & Ripple)
Derating Curve
Efficiency vs Input Voltage (Full Load)
Efficiency vs Load (Vin = Nom)
Mechanical Dimensions
Ripple vs Input Voltage (Full Load)
Ripple vs Load (Vin = Nom)
Pin
Connection
Pin Function
1
+Vin
5 +Vout
6
Vadj
7
Gnd
9
Gnd
10 Control
Solder Layout
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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
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