LM2576-12
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 LM2576-12 family does
The LM2576/LM2576HV series are monolithic 3A step-down voltage regulators available in fixed 3.3V, 5V, 12V, and 15V versions plus an adjustable configuration. Standard and HV variants support input voltages up to 40V and 60V respectively. These devices operate with a 52kHz fixed frequency, deliver 75% efficiency at 3A load, and require only four external components. They function as high-efficiency power supplies for simple switching applications, pre-regulators for linear regulators, and positive-to-negative converters. The family includes thermal shutdown, current limiting, and TTL shutdown capability to ensure reliable operation across commercial and industrial temperature ranges.
LM2576-12 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 10 mA | — | VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, VOUT = 5 V | TI datasheet, p. 7 |
| output voltage | — | 12 V | — | TI datasheet, p. 4 — ELECTRICAL CHARACTERISTICS LM2576-12, LM2576HV-12 | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | — | 40 V | — | TI datasheet, p. 3 — OPERATING RATINGS | |
| switching frequency | — | 52 kHz | — | TI datasheet, p. 1 | |
| operating temperature | -40 °C | — | 125 °C | TI datasheet, p. 3 — OPERATING RATINGS | |
| standby current | — | 50 µA | — | TI datasheet, p. 1 | |
| dropout voltage | — | 1.53 V | — | ILOAD = 3 A, TJ = 25 °C | TI datasheet, p. 7 |
| output noise voltage | 50 mV | — | 150 mV | typical output ripple voltage, COUT = 220 to 1000 µF | TI datasheet, p. 18 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2576-12 frequently asked questions
What is the dropout voltage of the LM2576-12 when ILOAD = 3 A and TJ = 25 °C?
The dropout voltage is 1.53 V at ILOAD = 3 A and TJ = 25 °C.
What is the maximum operating temperature for the LM2576-12?
The maximum operating temperature is 125 °C.
What is the output count for the LM2576-12?
The output count is 1.
What is the output current of the LM2576-12?
The output current is 3 A.
What is the typical output ripple voltage for the LM2576-12 when COUT is between 220 and 1000 µF?
The typical output ripple voltage is 150 mV.
What is the output voltage of the LM2576-12?
The output voltage is 12 V.
What is the quiescent current of the LM2576-12 when VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, and VOUT = 5 V?
The quiescent current is 10 mA.
What is the standby current of the LM2576-12?
The standby current is 50 µA.
What is the maximum supply voltage for the LM2576-12?
The supply voltage range is 40 V.
What is the switching frequency of the LM2576-12?
The switching frequency is 52 kHz.
LM2576-15 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 10 mA | — | VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, VOUT = 5 V | TI datasheet, p. 7 |
| output voltage | — | 15 V | — | TI datasheet, p. 5 — ELECTRICAL CHARACTERISTICS LM2576-15, LM2576HV-15 | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | — | 40 V | — | TI datasheet, p. 3 — OPERATING RATINGS | |
| switching frequency | — | 52 kHz | — | TI datasheet, p. 1 | |
| operating temperature | -40 °C | — | 125 °C | TI datasheet, p. 3 — OPERATING RATINGS | |
| standby current | — | 50 µA | — | TI datasheet, p. 1 | |
| dropout voltage | — | 1.53 V | — | ILOAD = 3 A, TJ = 25 °C | TI datasheet, p. 7 |
| output noise voltage | 50 mV | — | 150 mV | typical output ripple voltage, COUT = 220 to 1000 µF | TI datasheet, p. 18 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2576-15 frequently asked questions
What is the dropout voltage of the LM2576-15 at ILOAD = 3 A and TJ = 25 °C?
The dropout voltage is 1.53 V at ILOAD = 3 A and TJ = 25 °C.
What is the maximum operating temperature for the LM2576-15?
The maximum operating temperature is 125 °C.
How many outputs does the LM2576-15 have?
The LM2576-15 has an output count of 1.
What is the output current of the LM2576-15?
The output current is 3 A.
What is the typical output ripple voltage for the LM2576-15 when COUT is between 220 and 1000 µF?
The typical output ripple voltage is 150 mV when COUT is 220 to 1000 µF.
What is the output voltage of the LM2576-15?
The output voltage is 15 V.
What is the quiescent current of the LM2576-15 when VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, and VOUT = 5 V?
The quiescent current is 10 mA.
What is the standby current of the LM2576-15?
The standby current is 50 µA.
What is the maximum supply voltage for the LM2576-15?
The supply voltage range is 40 V.
What is the switching frequency of the LM2576-15?
The switching frequency is 52 kHz.
LM2576-3.3 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 10 mA | — | VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, VOUT = 5 V | TI datasheet, p. 7 |
| output voltage | — | 3.3 V | — | TI datasheet, p. 3 — ELECTRICAL CHARACTERISTICS LM2576-3.3, LM2576HV-3.3 | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | — | 40 V | — | TI datasheet, p. 3 — OPERATING RATINGS | |
| switching frequency | — | 52 kHz | — | TI datasheet, p. 1 | |
| operating temperature | -40 °C | — | 125 °C | TI datasheet, p. 3 — OPERATING RATINGS | |
| standby current | — | 50 µA | — | TI datasheet, p. 1 | |
| dropout voltage | — | 1.53 V | — | ILOAD = 3 A, TJ = 25 °C | TI datasheet, p. 7 |
| output noise voltage | 50 mV | — | 150 mV | typical output ripple voltage, COUT = 220 to 1000 µF | TI datasheet, p. 18 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2576-3.3 frequently asked questions
What is the dropout voltage of the LM2576-3.3 at ILOAD = 3 A and TJ = 25 °C?
The dropout voltage is 1.53 V.
What is the maximum operating temperature for the LM2576-3.3?
The operating temperature is 125 °C.
What is the output count for the LM2576-3.3?
The output count is 1.
What is the maximum output current of the LM2576-3.3?
The maximum output current is 3 A.
What is the typical output ripple voltage when COUT is 220 to 1000 µF?
The typical output ripple voltage is 150 mV.
What is the output voltage of the LM2576-3.3?
The output voltage is 3.3 V.
What is the quiescent current of the LM2576-3.3 when VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, and VOUT = 5 V?
The quiescent current is 10 mA.
What is the standby current?
The standby current is 50 µA.
What is the supply voltage range for the LM2576-3.3?
The supply voltage range is 40 V.
What is the switching frequency of the LM2576-3.3?
The switching frequency is 52 kHz.
LM2576-5.0 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 10 mA | — | VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, VOUT = 5 V | TI datasheet, p. 7 |
| output voltage | — | 5 V | — | TI datasheet, p. 4 — ELECTRICAL CHARACTERISTICS LM2576-5.0, LM2576HV-5.0 | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | — | 40 V | — | TI datasheet, p. 3 — OPERATING RATINGS | |
| switching frequency | — | 52 kHz | — | TI datasheet, p. 1 | |
| operating temperature | -40 °C | — | 125 °C | TI datasheet, p. 3 — OPERATING RATINGS | |
| standby current | — | 50 µA | — | TI datasheet, p. 1 | |
| dropout voltage | — | 1.53 V | — | ILOAD = 3 A, TJ = 25 °C | TI datasheet, p. 7 |
| output noise voltage | 50 mV | — | 150 mV | typical output ripple voltage, COUT = 220 to 1000 µF | TI datasheet, p. 18 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2576-5.0 frequently asked questions
What is the dropout voltage of the LM2576-5.0 at ILOAD = 3 A and TJ = 25 °C?
The dropout voltage is 1.53 V.
What is the maximum operating temperature for the LM2576-5.0?
The maximum operating temperature is 125 °C.
What is the output count for the LM2576-5.0?
The output count is 1.
What is the output current of the LM2576-5.0?
The output current is 3 A.
What is the typical output ripple voltage when COUT is 220 to 1000 µF?
The typical output ripple voltage is 150 mV.
What is the output voltage of the LM2576-5.0?
The output voltage is 5 V.
What is the quiescent current of the LM2576-5.0 when VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, and VOUT = 5 V?
The quiescent current is 10 mA.
What is the standby current of the LM2576-5.0?
The standby current is 50 µA.
What is the supply voltage range for the LM2576-5.0?
The supply voltage range is 40 V.
What is the switching frequency of the LM2576-5.0?
The switching frequency is 52 kHz.
LM2576HV-12 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 10 mA | — | VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, VOUT = 5 V | TI datasheet, p. 7 |
| output voltage | — | 12 V | — | TI datasheet, p. 4 — ELECTRICAL CHARACTERISTICS LM2576-12, LM2576HV-12 | |
| output current | — | 3 A | — | TI datasheet, p. 1 | |
| supply voltage range | — | 60 V | — | TI datasheet, p. 3 — OPERATING RATINGS | |
| switching frequency | — | 52 kHz | — | TI datasheet, p. 1 | |
| operating temperature | -40 °C | — | 125 °C | TI datasheet, p. 3 — OPERATING RATINGS | |
| standby current | — | 50 µA | — | TI datasheet, p. 1 | |
| dropout voltage | — | 1.53 V | — | ILOAD = 3 A, TJ = 25 °C | TI datasheet, p. 7 |
| output noise voltage | 50 mV | — | 150 mV | typical output ripple voltage, COUT = 220 to 1000 µF | TI datasheet, p. 18 |
| output count | — | 1 | — | TI datasheet, p. 1 |
LM2576HV-12 frequently asked questions
What is the dropout voltage of the LM2576HV-12 at ILOAD = 3 A and TJ = 25 °C?
The dropout voltage is 1.53 V.
What is the maximum operating temperature for the LM2576HV-12?
The operating temperature is 125 °C.
What is the output count for the LM2576HV-12?
The output count is 1.
What is the output current of the LM2576HV-12?
The output current is 3 A.
What is the typical output ripple voltage for the LM2576HV-12?
The typical output ripple voltage is 150 mV with COUT = 220 to 1000 µF.
What is the output voltage of the LM2576HV-12?
The output voltage is 12 V.
What is the quiescent current of the LM2576HV-12 when VIN = 20 V, ILOAD = 200 mA, TJ = 25 °C, and VOUT = 5 V?
The quiescent current is 10 mA.
What is the standby current?
The standby current is 50 µA.
What is the supply voltage range for the LM2576HV-12?
The supply voltage range is 60 V.
What is the switching frequency of the LM2576HV-12?
The switching frequency is 52 kHz.