LM2596-12
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the LM2596-12 family does
The LM2596 is a 150 kHz step-down voltage regulator available in 3.3V, 5V, 12V, and adjustable output versions. It drives a 3A load with a 4.5V to 40V input range, achieving up to 80% efficiency. The device requires only four external components and operates at a fixed 150 kHz switching frequency. It features thermal shutdown, current limit protection, and a low-power standby mode drawing typically 80 μA. These regulators simplify high-efficiency buck converter designs for on-card switching applications. Available in TO-220 and TO-263 packages, they support positive-to-negative conversion and utilize readily available standard inductors.
LM2596-12 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 5 mA | — | Switch OFF (feedback pin forced to turn output transistor off) | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics |
| output voltage | — | 12 V | — | TI datasheet, p. 3 — LM2596-12 Electrical Characteristics | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | 4.5 V | — | 40 V | TI datasheet, p. 2 — Operating Conditions | |
| switching frequency | — | 150 kHz | — | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics | |
| operating temperature | -40 °C | — | 125 °C | Junction temperature range | TI datasheet, p. 2 — Operating Conditions |
| standby current | — | 80 µA | — | ON/OFF pin = 5V (OFF) | TI datasheet, p. 5 — All Output Voltage Versions Electrical Characteristics (continued) |
| dropout voltage | — | 1.3 V | — | ILOAD = 3A, TJ = 25°C | TI datasheet, p. 6 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2596-12 frequently asked questions
What is the dropout voltage of the LM2596-12?
The dropout voltage is 1.3 V at ILOAD = 3A and TJ = 25°C.
What is the operating temperature of the LM2596-12?
The operating temperature is 125 °C at the junction temperature range.
What is the output count for the LM2596-12?
The output count is 1.
What is the output current of the LM2596-12?
The output current is 3 A.
What is the output voltage of the LM2596-12?
The output voltage is 12 V.
What is the quiescent current when the device is Switch OFF (feedback pin forced to turn output transistor off)?
The quiescent current is 5 mA.
What is the standby current when the ON/OFF pin is at 5V (OFF)?
The standby current is 80 µA.
What is the supply voltage range for the LM2596-12?
The supply voltage range is 40 V.
What is the switching frequency of the LM2596-12?
The switching frequency is 150 kHz.
LM2596-3.3 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 5 mA | — | Switch OFF (feedback pin forced to turn output transistor off) | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics |
| output voltage | — | 3.3 V | — | TI datasheet, p. 3 — LM2596-3.3 Electrical Characteristics | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | 4.5 V | — | 40 V | TI datasheet, p. 2 — Operating Conditions | |
| switching frequency | — | 150 kHz | — | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics | |
| operating temperature | -40 °C | — | 125 °C | Junction temperature range | TI datasheet, p. 2 — Operating Conditions |
| standby current | — | 80 µA | — | ON/OFF pin = 5V (OFF) | TI datasheet, p. 5 — All Output Voltage Versions Electrical Characteristics (continued) |
| dropout voltage | — | 1.3 V | — | ILOAD = 3A, TJ = 25°C | TI datasheet, p. 6 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2596-3.3 frequently asked questions
What is the dropout voltage of the LM2596-3.3 at ILOAD = 3A and TJ = 25°C?
The dropout voltage is 1.3 V.
What is the operating temperature of the LM2596-3.3?
The operating temperature is 125 °C at the junction temperature range.
How many outputs does the LM2596-3.3 have?
The LM2596-3.3 has an output count of 1.
What is the output current of the LM2596-3.3?
The output current is 3 A.
What is the output voltage of the LM2596-3.3?
The output voltage is 3.3 V.
What is the quiescent current when the device is Switch OFF (feedback pin forced to turn output transistor off)?
The quiescent current is 5 mA.
What is the standby current when the ON/OFF pin is at 5V?
The standby current is 80 µA when the ON/OFF pin is at 5V.
What is the supply voltage range for the LM2596-3.3?
The supply voltage range is 40 V.
What is the switching frequency of the LM2596-3.3?
The switching frequency is 150 kHz.
LM2596-5.0 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 5 mA | — | Switch OFF (feedback pin forced to turn output transistor off) | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics |
| output voltage | — | 5 V | — | TI datasheet, p. 3 — LM2596-5.0 Electrical Characteristics | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | 4.5 V | — | 40 V | TI datasheet, p. 2 — Operating Conditions | |
| switching frequency | — | 150 kHz | — | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics | |
| operating temperature | -40 °C | — | 125 °C | Junction temperature range | TI datasheet, p. 2 — Operating Conditions |
| standby current | — | 80 µA | — | ON/OFF pin = 5V (OFF) | TI datasheet, p. 5 — All Output Voltage Versions Electrical Characteristics (continued) |
| dropout voltage | — | 1.3 V | — | ILOAD = 3A, TJ = 25°C | TI datasheet, p. 6 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2596-5.0 frequently asked questions
What is the dropout voltage of the LM2596-5.0?
The dropout voltage is 1.3 V at ILOAD = 3A and TJ = 25°C.
What is the maximum operating temperature specified for the LM2596-5.0?
The operating temperature is 125 °C under the condition of junction temperature range.
What is the output count for the LM2596-5.0?
The output count is 1.
What is the output current of the LM2596-5.0?
The output current is 3 A.
What is the output voltage of the LM2596-5.0?
The output voltage is 5 V.
What is the quiescent current when the device is Switch OFF (feedback pin forced to turn output transistor off)?
The quiescent current is 5 mA when the device is Switch OFF (feedback pin forced to turn output transistor off).
What is the standby current when the ON/OFF pin is at 5V (OFF)?
The standby current is 80 µA when the ON/OFF pin is at 5V (OFF).
What is the maximum supply voltage for the LM2596-5.0?
The supply voltage range is 40 V.
What is the switching frequency of the LM2596-5.0?
The switching frequency is 150 kHz.
LM2596-ADJ datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 5 mA | — | Switch OFF (feedback pin forced to turn output transistor off) | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | 4.5 V | — | 40 V | TI datasheet, p. 2 — Operating Conditions | |
| switching frequency | — | 150 kHz | — | TI datasheet, p. 4 — All Output Voltage Versions Electrical Characteristics | |
| operating temperature | -40 °C | — | 125 °C | Junction temperature range | TI datasheet, p. 2 — Operating Conditions |
| standby current | — | 80 µA | — | ON/OFF pin = 5V (OFF) | TI datasheet, p. 5 — All Output Voltage Versions Electrical Characteristics (continued) |
| dropout voltage | — | 1.3 V | — | ILOAD = 3A, TJ = 25°C | TI datasheet, p. 6 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2596-ADJ frequently asked questions
What is the dropout voltage of the LM2596-ADJ at ILOAD = 3A and TJ = 25°C?
The dropout voltage is 1.3 V.
What is the maximum junction temperature for the LM2596-ADJ?
The operating temperature is 125 °C under the condition of junction temperature range.
What is the output count for the LM2596-ADJ?
The output count is 1.
What is the maximum output current of the LM2596-ADJ?
The maximum output current is 3 A.
What is the quiescent current when the device is Switch OFF with the feedback pin forced to turn the output transistor off?
The quiescent current is 5 mA.
What is the standby current when the ON/OFF pin is at 5V?
The standby current is 80 µA when the ON/OFF pin is at 5V.
What is the maximum supply voltage for the LM2596-ADJ?
The supply voltage range is 40 V.
What is the switching frequency of the LM2596-ADJ?
The switching frequency is 150 kHz.