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

ParametricTLF51801ELV
Comments10 A synchronous DC/DC Step-Down Controller; Adj Vout; f = 100 - 700 kHz; EN
VQ (multiple)1.2 V - Dmax * Vs
IQ  max10.0A
Regulator TypeDC/DC->Buck
Tolerance2%
Watchdogno
ProtectY
Resetno
InhibitY
Operating Temperature  min  max-40.0°C  150.0°C
MountingSMT
Sales Product NameTLF51801ELV
OPNTLF51801ELVXUMA1
Product Statusactive and preferred
Package NamePG-SSOP-14
Completely lead freeyes
Halogen freeyes
RoHS compliantyes
Packing Size2500
Packing TypeTAPE & REEL
Moisture Level3
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
Target Applications:
  • General purpose
  • Pre-regulator
Data Sheet
TitleSizeDateVersion
TLF51801ELV Data Sheet,EN1.7 MB04 Jul 2013
Product Brief
TitleSizeDateVersion
TLF51801ELV Product Brief849 KB17 Sep 2013
Product Selection Guide
TitleSizeDateVersion
Automotive Power Selection GuideEN10.6 MB19 Jan 201601_01
Material Content SheetInfo
TitleSizeDateVersion
MCDS_2013-08-28_23-00-02_MA001033152_PG-SSOP-14-3.pdf23 KB31 Oct 201301_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - DCDC-Converter - Altium - v1.02.9 MB21 Oct 201301_00
PCB Footprints & Symbols - DCDC-Converter - Cadence - v1.0352 KB21 Oct 201301_00
PCB Footprints & Symbols - DCDC-Converter - Eagle - v1.069 KB21 Oct 201301_00
PCB Footprints & Symbols - DCDC-Converter - Mentor - v1.0419 KB21 Oct 201301_00
Evaluation Boards
BoardFamilyDescriptionStatus
DEMOBOARD TLF51801ELVon request
Package Data
TitleSizeDateVersion
PG-SSOP-14-3 | TLF51801ELVXUMA1EN661 KB11 Apr 201601_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - DCDC-Converter - Altium - v1.02.9 MB21 Oct 201301_00
PCB Footprints & Symbols - DCDC-Converter - Cadence - v1.0352 KB21 Oct 201301_00
PCB Footprints & Symbols - DCDC-Converter - Eagle - v1.069 KB21 Oct 201301_00
PCB Footprints & Symbols - DCDC-Converter - Mentor - v1.0419 KB21 Oct 201301_00
EN TLF51801ELV
TLF51801ELV Product Brief TLF51801ELV
EN TLE8203E
MCDS_2013-08-28_23-00-02_MA001033152_PG-SSOP-14-3.pdf TLF51801ELV
EN TLF51801ELV
PCB Footprints & Symbols - DCDC-Converter - Altium - v1.0 TLE8386-2EL
PCB Footprints & Symbols - DCDC-Converter - Cadence - v1.0 TLE8386-2EL
PCB Footprints & Symbols - DCDC-Converter - Eagle - v1.0 TLE8386-2EL
PCB Footprints & Symbols - DCDC-Converter - Mentor - v1.0 TLE8386-2EL