Lm2596, lm2576

For more information, see the differences between the shock frequency and the maximum input voltage.

 

Lm2576 series 3A current output step-down switch integrated voltage regulator circuit, ● maximum output current: 3A; ● oscillation frequency: 52 kHz; ● conversion efficiency: 75% ~ 88% (different voltage output efficiency); ● maximum input voltage: lm2576 is 40 V, lm2576hv is 60 V; ● output voltage: optional, including 3.3 V, 5 V, 12 V, 15 V, and adj (adjustable); ● control mode: PWM; ● Working Mode Control: TTL level compatibility; ● required external components: only four (not adjustable) or six (adjustable); ● working mode: low power consumption/normal two modes can be externally controlled; ● working temperature range:-40 ℃ ~ + 125 ℃ ● device protection: thermal shutdown and current limit; ● encapsulation: To-220 or to-263. Contains LM2576T-12, LM2576T-15, LM2576HVS-3.3, LM2576HVS-5.0LM2576HVS-ADJ, LM2576HVS-12, LM2576HVS-15, LM2576HVT-12, LM2576HVT-ADJ, LM2576S-3.3, LM2576S-5.0, LM2576S-ADJ, LM2576S-12, LM2576HVT-3.3, LM2576HVT-5.0, LM2576S-15, LM2576T-3.3, LM2576T-5.0, the lm2576 includes a fixed frequency oscillator (52 kHz) and a reference voltage regulator (1.23 V), and has a complete protection circuit, including the current limit and thermal shutdown circuit, lm2576 can be used to form an efficient voltage regulator circuit with only a few peripheral devices. The lm2576 series consists of lm2576 (up to 40 V input voltage) and lm2576hv (up to 60 V input voltage. Each product series includes 3.3 V (-3.3), 5 V (-5.0), 12 V (-12), 15 V (-15), and adjustable (-adj) and other voltage-grade products. In addition, the chip provides an external control pin in the working state. The lm2596 series is an integrated voltage regulator chip with 3A current output step-down switch produced by national semiconductor companies. It contains a fixed frequency oscillator (150 kHz) and a reference voltage regulator (1.23 V ), and has a complete protection circuit: current limit, thermal shutdown circuit and so on. This device can be used to form an efficient voltage regulator circuit with only a few peripheral devices. It provides multiple voltage-grade products, including 3.3 V, 5 V, 12 V, and adjustable (-adj. In addition, the chip provides an external control pin in the working state.

Lm2596 Chip

The main features of the lm2596 series switch voltage regulator integrated circuit are as follows: 1. maximum output current: 3A 2. maximum input voltage: 37 V 3. Output voltage: 3.3 V, 5 V, 12 V and (adj), maximum output voltage 37 V 4, shock frequency: 150 kHz 5, conversion efficiency: 75% ~ 88% (the conversion efficiency varies with the voltage output) 6. operating temperature range:-40 ℃ ~ + 125 ℃ 7. Working Mode: low power consumption/normal mode. Externally controllable 8. Working Mode Control: TTL level compatibility 9. required external components: only four (not adjustable), six (adjustable) 10. device protection: thermal shutdown and current limit 11. Encapsulation Format: 5 feet (to-220 (t); to-263 (s ))

Lm2596, lm2576