LM2931AZ-5.0RAG ON Semiconductor, LM2931AZ-5.0RAG Datasheet - Page 9

• Manufacturer Part Number: LM2931AZ-5.0RAG
• Description: IC REG LDO 100MA 5V TO92
• Manufacturer: ON Semiconductor

Specifications of LM2931AZ-5.0RAG

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: Up to 40V
• Voltage - Dropout (typical): 0.16V @ 100mA
• Number Of Regulators: 1
• Current - Output: 100mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-92-3 (Standard Body), TO-226
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 40 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.2 V @ 10 mA
• Output Current: 0.1 A (Typ)
• Line Regulation: 30 mV
• Load Regulation: 50 mV
• Voltage Regulation Accuracy: 3.8 %
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Primary Input Voltage: 26V
• Output Voltage Fixed: 5V
• Dropout Voltage Vdo: 160mV
• No. Of Pins: 3
• Operating Temperature Range: -40°C To +125°C
• Termination Type: Through Hole
• Rohs Compliant: Yes
• Filter Terminals: Through Hole
• Current Rating: 0.1A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: LM2931AZ-5.0RAGOSTR

≥ 6.0 V
The LM2931 series can be current boosted with a PNP transistor. The
D45VH7, on a heatsink, will provide an output current of 5.0 A with an input
to output voltage differential of approximately 1.0 V. Resistor R in
conjunction with the V
begins conducting. This circuit is not short circuit proof.
Input
V
in
C
0.1
in
68
Figure 19. (5.0 A) Low Differential
Figure 17. Fixed Output Regulator
R
D45VH7
+
Input
BE
Voltage Regulator
100
of the PNP determines when the pass transistor
LM2931-5.0
I
B
Output
Fixed
LM2931-5.0
6.4 V to 30 V
GND
Input
Figure 21. Constant Intensity Lamp Flasher
100
Output
+
100
+
C
5.0 V @ 5.0 A
O
LM2931C
Output
http://onsemi.com
V
out
33 k
9
Input
2.0 k
8.2 k
V
in
The circuit of Figure 19 can be modified to provide supply protection against
short circuits by adding the current sense resistor R
transistor. The current sensing PNP must be capable of handling the short
circuit current of the LM2931. Safe operating area of both transistors must be
considered under worst case conditions.
0.1
V out + V
C
R
6.2 V
in
0
Figure 20. Current Boost Regulator with
Figure 18. Adjustable Output Regulator
100
51 k
Switch Position 1 = Output “On", 2 = Output “Off"
f
osc
2
1
ref
= 2.2 Hz
+
#345
CM
Short Circuit Projection
1 )
Output
Inhibit
R
SC
Input
R 2
R 1
) I
I
Adjustable
LM2931C
B
Output
+
Adj
GND
100
R 2
Output
Adjust
LM2931-5.0
SC
22.5 k w
I
and an additional PNP
Adj
R
R
R 1 ) R 2
1
2
R 1 R 2
100
C
O
+
Output
V
out