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Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 3-5.5 V |
| Ausgang 1 | 5.5 V / 5 A |
| IC-Revision | 0.1 |
Beschreibung
The LX7219 is a digitally controlled step-down regulator IC with an integrated 22mΩ high-side P-channel MOSFET and a 13mΩ low-side N-channel MOSFET. It features Microsemi’s proprietary constant-frequency hysteretic control engine for near-instantaneous correction to sudden line/load transients. It does not require high-ESR output capacitors and incorporates energy-saving “PSM” (Power Saving or Pulse Skip Mode) at light loads, to extend battery life in mobile applications.The LX7219 has an I2C serial interface port for output voltage margining and monitoring if required (it can operate in default mode too). It includes robust fault monitoring functions.The LX7219 will operate from 2.7V to 5.5V, and is available in several fixed output voltage options from 0.9V to 0.8V (no voltage divider is necessary). Each version’s output voltage can also be made adjustable with use of an external voltage divider.
Eigenschaften
- Constant Frequency Hysteretic Control
- Extremely Fast Line/Load Transient Response
- I2C for Output Adjustment (3.4Mbps)
- 1.2MHz Switching Frequency
- Extremely Low-RDSON MOSFETS
- Input Voltage Rail 2.6V to 5.5V, Current 6A
- Programmable Power Save Mode for Light-Load Efficiency
- UVLO, OVP, OCP
- 0°C to +85°C Ambient Temperature
- Available in WLCSP-20 (0.4mm pitch)
- RoHS Compliant
Typische Anwendungen
- Notebook/ Netbook
- High Performance HDD/Server and Workstations/Video Cards
- PoE Powered Devices
- LCD TV's
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT1 (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Montageart | Endurance (h) | Betriebstemperatur | IRIPPLE (mA) | RESR (mΩ) | ILeak (µA) | Raster (mm) | Ø D (mm) | Pins | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012107005 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 6.3 V(DC) | 22 µF | ±20% | 6.3 | 0805 | -55 °C up to +85 °C | 10 | 0.005 GΩ | X5R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
 | 870055674005 | SPEC | 7 Dateien | WCAP-PTHR Aluminium-Polymer-Kondensatoren | 47 µF | ±20% | 35 | – | – | 12 | – | – | 11.5 | – | – | – | – | – | – | – | – | Radial THT | 2000 | -55 °C bis zu +105 °C | 2890 | 25 | 329 | 3.5 | 8 | – | – | – | – | – | – | Ammopack | ||
 | 744373460033 | SPEC | 8 Dateien | WE-LHMI SMT Speicherdrossel | – | – | – | 7030 | -40 °C up to +125 °C | – | – | – | 7.3 | 6.6 | – | 0.33 | 17.8 | 27.1 | 47 | 3.9 | 124 | SMT | – | – | – | – | – | – | – | 2 | – | 2.8 | – | – | – | – | ||
 | 61300311121 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 7.62 | – | – | – | – | – | – | – | – | THT | – | – | – | – | – | 2.54 | – | 3 | Single | – | Pin Header | Gerade | 3 | Beutel | |
| 61300411121 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 10.16 | – | – | – | – | – | – | – | – | THT | – | – | – | – | – | 2.54 | – | 4 | Single | – | Pin Header | Gerade | 3 | Beutel |
| Artikel Nr. | Datenblatt | Simulation | |
|---|---|---|---|
| 885012107005 | SPEC | |
| 870055674005 | SPEC | |
| 744373460033 | SPEC | |
| 61300311121 | SPEC | – |
| 61300411121 | SPEC | – |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT1 (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Montageart | Endurance (h) | Betriebstemperatur | IRIPPLE (mA) | RESR (mΩ) | ILeak (µA) | Raster (mm) | Ø D (mm) | Pins | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster |
|---|