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Manufacturer Part #
L5970D
L5970D Series 36 V 1 A Step Down Monolithic Power Switching Regulator - SOIC-8
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| Mfr. Name: | STMicroelectronics | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:100 per Tube Package Style:SOIC-8 Mounting Method:Surface Mount | ||||||||||
| Date Code: | 2425 | ||||||||||
STMicroelectronics L5970D - Product Specification
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STMicroelectronics L5970D - Technical Attributes
| Topology: | Buck |
| Input Voltage: | 4.4V to 36V |
| Output Current-Max: | 1A |
| Output Voltage Range: | 1.2V to 35V |
| Output Type: | Adjustable |
| Switching Frequency-Max: | 280kHz |
| Operating Temp Range: | -40°C to +150°C |
| Duty Cycle-Max: | 100% |
| Efficiency: | 90% |
| No. of Outputs: | 1 |
| Quiescent Current: | 2.5mA |
| Storage Temperature Range: | -55°C to +150°C |
| Load Regulation: | 15mV |
| Package Style: | SOIC-8 |
| Mounting Method: | Surface Mount |
Features & Applications
The L5970D is a step down monolithic power switching regulator capable to deliver up to 1 A at output voltages from 1.2 V to 35 V. The device uses an internal P-Channel D-MOS transistor (with a typical Rdson of 250 mΩ) as switching element to minimize the size of the external components.
An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4.4 V only, it is particularly suitable for 5 V bus, available in all computer related applications. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.
Features:
- Up to 1 A output current
- Operating input voltage from 4.4 V to 36 V
- 3.3 V / (±2%) reference voltage
- Output voltage adjustable from 1.2 V to 35 V
- Low dropout operation: 100% duty cycle
- 250 kHz Internally fixed frequency
- Voltage feedforward
- Zero load current operation
- Internal current limiting
- Inhibit for zero current consumption
- Synchronization
- Protection against feedback disconnection
- Thermal shutdown
Applications:
- Consumer: STB, DVD, TV, VCR, car radio, LCD monitors
- Networking: XDSL, modems, DC-DC modules
- Computer: printers, audio/graphic cards, optical storage, hard disk drive
- Industrial: changers, car battery, DC-DC converters
Available Packaging
Package Qty:
100 per Tube
Package Style:
SOIC-8
Mounting Method:
Surface Mount
