IC-Hersteller Texas Instruments

IC-Hersteller (99)

Texas Instruments LM5018 | Demoboard TIDA-00913

7.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator

Details

TopologieAbwärtswandler
Eingangsspannung7.5-100 V
Schaltfrequenz1000 kHz
Ausgang 11.23 V / 0.3 A
IC-RevisionE1

Beschreibung

The LM5018 is a 100-V, 300-mA synchronous step-down regulator with integrated high-side and low-side MOSFETs. The constant-on-time (COT) control scheme employed in the LM5018 device requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high-voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers.A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias supply undervoltage lockout.

Eigenschaften

  • Wide 7.5- to 100-V Input Range
  • Integrated 300-mA High-Side andLow-Side Switches
  • No Schottky Required
  • Constant On-time Control
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency
  • Intelligent Peak Current Limit
  • Adjustable Output Voltage From 1.225 V
  • Precision 2% Feedback Reference
  • Frequency Adjustable to 1 MHz
  • Adjustable Undervoltage Lockout
  • Remote Shutdown
  • Thermal Shutdown
  • Packages:
  • WSON-8
  • SO PowerPAD™-8

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieλDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
L
(µH)
ISAT1
(A)
ISAT,30%
(A)
IR,40K
(A)
IRP,40K
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersionPins (Value)
(pcs)
AnwendungPCB/Kabel/PanelModularityTypWire Section Muster
150060GS75000SPEC
25 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WL-SMCW SMT Mono-color Chip LED Waterclear 525 Grün 515 430 3.2 InGaN 140 0603
7447709471SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-PD Speicherdrossel 470 1.5 1.85 1.4 1.45 560 1.8 1210 Standard 2
691352510002SPEC
3 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WR-TBL Serie 352 - 5.08 mm Horizontal with Hook on Wire Side 2 Pluggable Kabel Nein Horizontal 12 to 24 (AWG) 3.31 to 0.205 (mm²)
Artikel Nr. Daten­blatt Simu­lation
150060GS75000SPEC
7447709471SPEC
691352510002SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieλDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
L
(µH)
ISAT1
(A)
ISAT,30%
(A)
IR,40K
(A)
IRP,40K
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersionPins (Value)
(pcs)
AnwendungPCB/Kabel/PanelModularityTypWire Section Muster