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Texas Instruments LM5018 | Demoboard TIDA-00210
LM5018 100-V, 300-mA Constant On-Time Synchronous Buck Regulator
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 12-95 V |
| Ausgang 1 | 12 V / 0.05 A |
| IC-Revision | E1 |
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.
The LM5018 device is available in WSON-8 and SO PowerPAD-8 plastic packages.
Eigenschaften
- Wide 7.5 V to 100 V Input Range
- Integrated 100 V, High and Low 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
Typische Anwendungen
- Telecommunication Systems
- Isolated Bias Supply
- Brush DC Motors
- Bipolar Stepper Motors
- Brush DC Motors
- Automotive Electronics
- Bipolar Stepper Motors
- Smart Power Meters
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | Anwendung | PCB/Kabel/Panel | Modularity | λDom typ. (nm) | Farbe | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chiptechnologie | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | Q | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IR 1 (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | fres (MHz) | Endurance (h) | Betriebstemperatur | IRIPPLE (mA) | ILeak (µA) | Raster (mm) | Ø D (mm) | Pins (Value) (pcs) | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691311500002 | SPEC | – | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-TBL Serie 311 - 5.08 mm Open Vertical PCB Header | Pluggable | PCB | Nein | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | – | – | 10.16 | – | – | – | – | – | – | – | – | – | -40 °C bis zu +105 °C | – | – | 5.08 | – | 2 | – | – | – | Vertikal | 20 | Karton | |
 | 691311500103 | SPEC | – | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-TBL Serie 311 - 5.08 mm Close Vertical PCB Header | Pluggable | PCB | Nein | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | – | – | 17.24 | – | – | – | – | – | – | – | – | – | – | – | – | 5.08 | – | 3 | – | – | – | Vertikal | 20 | Karton | |
 | 74479887310A | SPEC | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-PMI Power-Multilayer-Induktivität | – | – | – | – | – | – | – | – | – | – | – | – | – | 1008 | -40 °C up to +125 °C | 27 | – | – | – | 2.5 | 2 | – | 10 | 600 | 850 | 125 | 300 | 20 | – | -40 °C bis zu +125 °C | – | – | – | – | 2 | – | 0.8 | – | High Saturation Current | – | – | ||
 | 74404041101 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-LQS SMT-Speicherdrossel | – | – | – | – | – | – | – | – | – | – | – | – | – | 4012 | -40 °C up to +125 °C | – | – | – | – | 4 | 4 | – | 100 | – | – | 300 | 1697 | 10 | – | -40 °C bis zu +125 °C | – | – | – | – | – | – | 1.2 | – | – | 0.43 | – | ||
 | 150060RS75000 | SPEC | 25 Dateien Strahldaten
| Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | 625 | Rot | 630 | 250 | 2 | AlInGaP | 140 | – | – | – | 0603 | -40 °C up to +85 °C | – | – | – | – | 1.6 | 0.8 | – | – | – | – | – | – | – | – | -40 °C up to +85 °C | – | – | – | – | – | – | 0.7 | – | – | – | Tape and Reel | ||
| 150060GS75000 | SPEC | 25 Dateien Strahldaten
| 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 | -40 °C up to +85 °C | – | – | – | – | 1.6 | 0.8 | – | – | – | – | – | – | – | – | -40 °C up to +85 °C | – | – | – | – | – | – | 0.7 | – | – | – | Tape and Reel | ||
 | 860040875005 | SPEC | 7 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-ATUL Aluminium-Elektrolytkondensatoren | – | – | – | – | – | – | – | – | – | – | 100 µF | ±20% | 100 | – | – | – | 9 | – | – | 25 | – | – | – | – | – | – | – | – | 7000 | -40 °C bis zu +105 °C | 800 | 100 | 5 | 10 | – | – | – | – | – | – | Ammopack | ||
 | 885012205031 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | 10 nF | ±10% | 16 | 0402 | -55 °C up to +125 °C | – | 3.5 | 10 GΩ | X7R Klasse II | 1 | 0.5 | 0.25 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012205044 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | – | – | – | 1 nF | ±10% | 25 | 0402 | -55 °C up to +125 °C | – | 3.5 | 10 GΩ | X7R Klasse II | 1 | 0.5 | 0.25 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012205055 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | 100 pF | ±10% | 50 | 0402 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Klasse II | 1 | 0.5 | 0.25 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012106017 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | 1 µF | ±20% | 16 | 0603 | -55 °C up to +85 °C | – | 10 | 0.1 GΩ | X5R Klasse II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
 | 61030421121 | SPEC | – | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-PHD 2.54 mm SMT Dual Pin Header | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 5.08 | – | – | – | – | – | – | – | – | – | – | – | – | 2.54 | – | 4 | Dual | – | Pin Header | Gerade | 3 | Tape and Reel with Cap | |
 | 61031221121 | SPEC | – | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-PHD 2.54 mm SMT Dual Pin Header | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 15.24 | – | – | – | – | – | – | – | – | – | – | – | – | 2.54 | – | 12 | Dual | – | Pin Header | Gerade | 3 | Tape and Reel with Cap |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | Anwendung | PCB/Kabel/Panel | Modularity | λDom typ. (nm) | Farbe | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chiptechnologie | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | Q | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IR 1 (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | fres (MHz) | Endurance (h) | Betriebstemperatur | IRIPPLE (mA) | ILeak (µA) | Raster (mm) | Ø D (mm) | Pins (Value) (pcs) | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster |
|---|