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Référence fabricant
L4978D
L4978 Series 55 V 220 uA 300 kHz Buck Through Hole Switching Regulator - SOIC-16
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| Nom du fabricant: | STMicroelectronics | ||||||||||
| Emballage standard: | Product Variant Information section Emballages disponiblesQté d'emballage(s) :49 par Tube Style d'emballage :SOIC-16 Méthode de montage :Through Hole | ||||||||||
| Code de date: | |||||||||||
STMicroelectronics L4978D - Spécifications du produit
Informations de livraison:
ECCN:
Informations PCN:
Statut du produit:
- https://futureelec.wufoo.com/forms/?formname=r8bzou01ws8brs&field12=NA&field16=fr&field2=L4978D&field4=STMicroelectronics&field18=https://p1na.futureelectronics.com/fr/p/semiconductors--analog--regulators-reference--switching-regulators/l4978d-stmicroelectronics-5100148
- https://futureelec.wufoo.com/forms/?formname=r8bzou01ws8brs&field12=NA&field16=fr&field2=L4978D&field4=STMicroelectronics&field18=https://p1na.futureelectronics.com/fr/p/semiconductors--analog--regulators-reference--switching-regulators/l4978d-stmicroelectronics-5100148
STMicroelectronics L4978D - Caractéristiques techniques
| Topology: | Buck |
| Input Voltage: | 8V to 55V |
| Output Current-Max: | 2µA |
| Output Voltage Range: | 3.3V to 50V |
| Output Type: | Adjustable |
| Switching Frequency-Max: | 300kHz |
| Operating Temp Range: | -40°C to +150°C |
| Duty Cycle-Max: | 97% |
| Efficiency: | 87% |
| No. of Outputs: | 1 |
| Quiescent Current: | 2.5mA |
| Storage Temperature Range: | -40°C to +150°C |
| Moisture Sensitivity Level: | 3 |
| Style d'emballage : | SOIC-16 |
| Méthode de montage : | Through Hole |
Fonctionnalités et applications
The L4978D is a step down monolithic power switching regulator delivering 2A at a voltage between 3.3 V and 50 V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25O) to obtain very high efficency and high switching speed.
Switching frequency up to 300 KHz is achievable (the maximum power dissipation of the packages must be observed). A wide input voltage range between 8 V to 55 V and output voltages regulated from 3.3 V to 50 V cover the majority of today’s applications.
Features:
- Up to 2 A Stepdown Converter
- Operating input voltage from 8 V TO 55 V
- Precise 3.3 V (±1%) Internal Reference voltage
- Output voltage adjustable from 3.3 V to 50 V
- Switching frequency adjustable up to 300 KHz
- Voltage feedforward
- Zero load current operation
- Internal current limiting (Pulsebypulse and hiccup mode)
- Inhibit for zero current consuption
- Protection against feedback disconnection
- Thermal Shutdown
- Soft start function
View the Complete family of L497 Switching Regulators
Emballages disponibles
Qté d'emballage(s) :
49 par Tube
Style d'emballage :
SOIC-16
Méthode de montage :
Through Hole