Infineon Technologies AG DC-DC Converters, Switching Regulators TLF51801ELV

Description
The TLF51801ELV is a PWM step-down DC/DC controller with external power switches, packaged in a small, thermal enhanced PG-SSOP-14 with exposed pad. The regulator is capable to drive external power-stages (n/n-MOS) for loads up to 10 A. The current limitation function is using either the Rdson of the HS-switch or a external shunt resistor. The output voltage with a 2% tolerance is adjustable. The device can run with a duty cycle larger than 99%. The bootstrap diode is integrated to save external components. The switching frequency can be set between 100 kHz and 700 kHz or can be synchronized to an external clock. During start-up the integrated soft-start limits the in rush current peak and prevents from an output voltage overshoot. The enable function, in shutdown mode with less than 2 μA current consumption, enables easy power management in battery-powered systems. The TLF51801ELV includes protection features such as a cycle-by-cycle current limitation, over-temperature shutdown and input under voltage lockout. With a temperature range Tj from -40°C to 150°C the device is suitable for harsh environment of automotive applications Summary of Features Controller for loads up to 10A Driving external power-stage (n/n-MOS) Current limitation using the Rdson of the HS-switch or via shunt-resistor Adjustable output voltage: 1.2V up to Dmax*Vs ± 2% output voltage tolerance Duty cycle > 99% Integrated bootstrap diode Input voltage range from 4.75V to 45V Adjustable switching frequency: 100 kHz up to 700 kHz Syncronization input EN for ultra-low shut-down current (< 2 µA) Integrated soft-start function Suited for automotive applications: Tj = -40 °C to +150 °C Green Product (RoHS compliant) AEC Qualified Benefits Rdson-current limitation saves external shunt resisitor and board space Integrated bootstrap diode saves external components and board space High duty cycle allows low drop-out operation Integrated soft- start function saves external components and board space Potential Applications General purpose Pre-regulator Designers who used this product also designed with BSC123N08NS3 G | N-Channel Power MOSFET TLE7259-3GE | Automotive LIN Transceivers TLF35584QVVS1 | OPTIREG™ PMIC (Automotive) BSZ215C H | Dual MOSFET TLE4250-2G | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear ITS4090Q-EP-D | PROFET™ | Industrial Smart High-Side Switch IPG20N06S4L-26 | Automotive MOSFET BSC039N06NS | N-Channel Power MOSFET TLE4284D V33 | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear ITS5215L | PROFET™ | Industrial Smart High-Side Switch IPG20N04S4L-08A | Automotive MOSFET BSC065N06LS5 | N-Channel Power MOSFET TLE4285G | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear BTS134D | Classic HITFET™ 12V | Automotive Low-Side Switch IRS2005S | Gate Driver ICs BSC123N08NS3 G | N-Channel Power MOSFET TLE7259-3GE | Automotive LIN Transceivers TLF35584QVVS1 | OPTIREG™ PMIC (Automotive) BSZ215C H | Dual MOSFET TLE4250-2G | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear ITS4090Q-EP-D | PROFET™ | Industrial Smart High-Side Switch IPG20N06S4L-26 | Automotive MOSFET BSC039N06NS | N-Channel Power MOSFET 1 2 3 4
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DC-DC Converters, Switching Regulators - TLF51801ELV - Infineon Technologies AG
Neubiberg, Germany
DC-DC Converters, Switching Regulators
TLF51801ELV
DC-DC Converters, Switching Regulators TLF51801ELV
The TLF51801ELV is a PWM step-down DC/DC controller with external power switches, packaged in a small, thermal enhanced PG-SSOP-14 with exposed pad. The regulator is capable to drive external power-stages (n/n-MOS) for loads up to 10 A. The current limitation function is using either the Rdson of the HS-switch or a external shunt resistor. The output voltage with a 2% tolerance is adjustable. The device can run with a duty cycle larger than 99%. The bootstrap diode is integrated to save external components. The switching frequency can be set between 100 kHz and 700 kHz or can be synchronized to an external clock. During start-up the integrated soft-start limits the in rush current peak and prevents from an output voltage overshoot. The enable function, in shutdown mode with less than 2 μA current consumption, enables easy power management in battery-powered systems. The TLF51801ELV includes protection features such as a cycle-by-cycle current limitation, over-temperature shutdown and input under voltage lockout. With a temperature range Tj from -40°C to 150°C the device is suitable for harsh environment of automotive applications Summary of Features Controller for loads up to 10A Driving external power-stage (n/n-MOS) Current limitation using the Rdson of the HS-switch or via shunt-resistor Adjustable output voltage: 1.2V up to Dmax*Vs ± 2% output voltage tolerance Duty cycle > 99% Integrated bootstrap diode Input voltage range from 4.75V to 45V Adjustable switching frequency: 100 kHz up to 700 kHz Syncronization input EN for ultra-low shut-down current (< 2 µA) Integrated soft-start function Suited for automotive applications: Tj = -40 °C to +150 °C Green Product (RoHS compliant) AEC Qualified Benefits Rdson-current limitation saves external shunt resisitor and board space Integrated bootstrap diode saves external components and board space High duty cycle allows low drop-out operation Integrated soft- start function saves external components and board space Potential Applications General purpose Pre-regulator Designers who used this product also designed with BSC123N08NS3 G | N-Channel Power MOSFET TLE7259-3GE | Automotive LIN Transceivers TLF35584QVVS1 | OPTIREG™ PMIC (Automotive) BSZ215C H | Dual MOSFET TLE4250-2G | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear ITS4090Q-EP-D | PROFET™ | Industrial Smart High-Side Switch IPG20N06S4L-26 | Automotive MOSFET BSC039N06NS | N-Channel Power MOSFET TLE4284D V33 | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear ITS5215L | PROFET™ | Industrial Smart High-Side Switch IPG20N04S4L-08A | Automotive MOSFET BSC065N06LS5 | N-Channel Power MOSFET TLE4285G | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear BTS134D | Classic HITFET™ 12V | Automotive Low-Side Switch IRS2005S | Gate Driver ICs BSC123N08NS3 G | N-Channel Power MOSFET TLE7259-3GE | Automotive LIN Transceivers TLF35584QVVS1 | OPTIREG™ PMIC (Automotive) BSZ215C H | Dual MOSFET TLE4250-2G | Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear ITS4090Q-EP-D | PROFET™ | Industrial Smart High-Side Switch IPG20N06S4L-26 | Automotive MOSFET BSC039N06NS | N-Channel Power MOSFET 1 2 3 4

The TLF51801ELV is a PWM step-down DC/DC controller with external power switches, packaged in a small, thermal enhanced PG-SSOP-14 with exposed pad.

The regulator is capable to drive external power-stages (n/n-MOS) for loads up to 10 A. The current limitation function is using either the Rdson of the HS-switch or a external shunt resistor. The output voltage with a 2% tolerance is adjustable. The device can run with a duty cycle larger than 99%. The bootstrap diode is integrated to save external components. The switching frequency can be set between 100 kHz and 700 kHz or can be synchronized to an external clock. During start-up the integrated soft-start limits the in rush current peak and prevents from an output voltage overshoot. The enable function, in shutdown mode with less than 2 μA current consumption, enables easy power management in battery-powered systems. The TLF51801ELV includes protection features such as a cycle-by-cycle current limitation, over-temperature shutdown and input under voltage lockout. With a temperature range Tj from -40°C to 150°C the device is suitable for harsh environment of automotive applications


Summary of Features

  • Controller for loads up to 10A
  • Driving external power-stage (n/n-MOS)
  • Current limitation using the Rdson of the HS-switch or via shunt-resistor
  • Adjustable output voltage: 1.2V up to Dmax*Vs
  • ± 2% output voltage tolerance
  • Duty cycle > 99%
  • Integrated bootstrap diode
  • Input voltage range from 4.75V to 45V
  • Adjustable switching frequency: 100 kHz up to 700 kHz
  • Syncronization input
  • EN for ultra-low shut-down current (< 2 µA)
  • Integrated soft-start function
  • Suited for automotive applications: Tj = -40 °C to +150 °C
  • Green Product (RoHS compliant)
  • AEC Qualified

Benefits

  • Rdson-current limitation saves external shunt resisitor and board space
  • Integrated bootstrap diode saves external components and board space
  • High duty cycle allows low drop-out operation
  • Integrated soft- start function saves external components and board space

Potential Applications

  • General purpose
  • Pre-regulator

Designers who used this product also designed with


  • BSC123N08NS3 G |
    N-Channel Power MOSFET
  • TLE7259-3GE |
    Automotive LIN Transceivers
  • TLF35584QVVS1 |
    OPTIREG™ PMIC (Automotive)
  • BSZ215C H |
    Dual MOSFET
  • TLE4250-2G |
    Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear
  • ITS4090Q-EP-D |
    PROFET™ | Industrial Smart High-Side Switch
  • IPG20N06S4L-26 |
    Automotive MOSFET
  • BSC039N06NS |
    N-Channel Power MOSFET
  • TLE4284D V33 |
    Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear
  • ITS5215L |
    PROFET™ | Industrial Smart High-Side Switch
  • IPG20N04S4L-08A |
    Automotive MOSFET
  • BSC065N06LS5 |
    N-Channel Power MOSFET
  • TLE4285G |
    Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear
  • BTS134D |
    Classic HITFET™ 12V | Automotive Low-Side Switch
  • IRS2005S |
    Gate Driver ICs
  • BSC123N08NS3 G |
    N-Channel Power MOSFET
  • TLE7259-3GE |
    Automotive LIN Transceivers
  • TLF35584QVVS1 |
    OPTIREG™ PMIC (Automotive)
  • BSZ215C H |
    Dual MOSFET
  • TLE4250-2G |
    Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear
  • ITS4090Q-EP-D |
    PROFET™ | Industrial Smart High-Side Switch
  • IPG20N06S4L-26 |
    Automotive MOSFET
  • BSC039N06NS |
    N-Channel Power MOSFET

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Supplier's Site Datasheet

Technical Specifications

  Infineon Technologies AG
Product Category IC Switching Voltage Regulators
Product Number TLF51801ELV
Product Name DC-DC Converters, Switching Regulators
Configuration / Function Buck
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