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LINEAR TECHNOLOGY  LT3501IFE#PBF  DC/DC Switching Regulator, Buck, 2 Output, 3.1 V to 25 V in, 22.5 V/3 A out, 1.8 MHz, TSSOP-20

LINEAR TECHNOLOGY LT3501IFE#PBF
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Descrição geral do produto

The LT3501IFE#PBF is a dual-current mode PWM step-down DC/DC Converter with two internal 3.5A switches. Independent input voltage, feedback, soft-start and power good pins for each channel simplify complex power supply tracking/sequencing requirements. Both converters are synchronized to either a common external clock input or a resistor programmable fixed 250kHz to 1.5MHz internal oscillator. At all frequencies, a 180° phase relationship between channels is maintained, reducing voltage ripple and component size. Programmable frequency allows for optimization between efficiency and external component size. Minimum input-to-output voltage ratios are improved by allowing the switch to stay on through multiple clock cycles, only switching off when the boost capacitor needs recharging, resulting in ~95% maximum duty cycle. Each output can be independently disabled using its own soft-start pin or by using the SHDN pin the entire part can be placed in a low quiescent current shutdown mode.
  • Independent supply to each regulator
  • Antiphase switching
  • Outputs can be paralleled
  • Independent, sequential, ratiometric or absolute tracking between outputs
  • Independent soft-start and power good pins
  • Enhanced short-circuit protection
  • 95% Maximum duty cycle low dropout
  • <10µA Low shutdown current
  • 2 Switching regulators with 3A output capability

Informação do produto

Input Voltage Min:
3.1V
Input Voltage Max:
25V
No. of Outputs:
2 Output
DC / DC Converter IC Case:
TSSOP
No. of Pins:
20Pins
Output Current - Output 1:
3A
Output Current - Output 2:
3A
Output Voltage - Output 1:
22.5V
Output Voltage - Output 2:
22.5V
Regulator Output Type:
Adjustable
Switching Frequency:
1.8MHz
Topology:
Buck (Step Down)
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 1 - Unlimited

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Aplicações

  • Power Management

Legislação e Ambiente

Nível de sensibilidade à umidade:
MSL 1 - Unlimited
País de origem:
United States

País onde se realizou a maior parte do processo de produção

Conformidade RoHS:
Sim
Tarifa N.º:
85423990
Peso (kg):
.000153

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