LM2596DSADJR4G ON Semiconductor, LM2596DSADJR4G Datasheet - Page 2

• Manufacturer Part Number: LM2596DSADJR4G
• Description: IC REG SW STP-DWN 3A D2PAK-5
• Manufacturer: ON Semiconductor
• Type: Step-Down (Buck)r

Specifications of LM2596DSADJR4G

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.23 ~ 37 V
• Current - Output: 3A
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (5 leads + tab)
• Output Voltage: 1.23 V to 37 V
• Output Current: 3 A
• Input Voltage: - 5 V to - 12 V
• Switching Frequency: 150 KHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 95 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Unregulated
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
MAXIMUM RATINGS
Maximum Supply Voltage
ON/OFF Pin Input Voltage
Output Voltage to Ground (Steady−State)
Power Dissipation
Storage Temperature Range
Minimum ESD Rating (Human Body Model: C = 100 pF, R = 1.5 kW)
Lead Temperature (Soldering, 10 seconds)
Maximum Junction Temperature
DC Input
Case 314B and 314D (TO−220, 5−Lead)
Case 936A (D
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
C
in
C
FF
2
PAK)
Feedback
+V
R1
R2
1
4
in
Unregulated
DC Input
Figure 1. Typical Application and Internal Block Diagram
Band-Gap
12 V
Reference
1.235 V
Typical Application (Adjustable Output Voltage Version)
Rating
Fixed Gain
Error Amplifier
100 mF
30 kHz
Freq
Shift
C
in
Oscillator
+V
150 kHz
in
1
Comparator
3.1 V Internal
Regulator
3
http://onsemi.com
Block Diagram
LM2596
GND
5
Reset
Latch
ON/OFF
2
Current
Limit
ON/OFF
Output
Feedback
4
2
Shutdown
Thermal
Driver
D1
1N5822
33 mH
L1
3.1k
3.0 Amp
Switch
Symbol
R2
R
R
R
R
C
220 mF
T
V
P
P
T
out
qJA
qJC
qJA
qJC
−
−
stg
−
−
in
D
D
J
C
1.0k
R1
FF
ON/OFF
5
Output
2
GND
3
5.0 V Regulated
Output 3.0 A Load
−0.3 V ≤ V ≤ +V
Internally Limited
Internally Limited
−65 to +150
Value
−1.0
260
150
5.0
5.0
2.0
45
65
70
D1
L1
in
C
out
Regulated
°C/W
°C/W
°C/W
°C/W
Unit
Output
°C
kV
°C
°C
W
W
V
V
V
V
Load
out