
Manufacturer Part #
L4970A
L4970 Series 10 A Step Down Monolithic Power Switching Regulator - MULTIWATT-15
STMicroelectronics L4970A - Product Specification
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STMicroelectronics L4970A - Technical Attributes
Topology: | Buck |
Input Voltage: | 15V to 50V |
Output Current-Max: | 10A |
Output Voltage Range: | 5.1V to 40V |
Output Type: | Adjustable |
Switching Frequency-Max: | 500kHz |
Operating Temp Range: | -40°C to +150°C |
Duty Cycle-Max: | 90% |
Efficiency: | 92% |
No. of Outputs: | 1 |
Quiescent Current: | 19mA |
Storage Temperature Range: | -40°C to +150°C |
Load Regulation: | 50mV |
Package Style: | MULTIWATT-15 |
Mounting Method: | Flange Mount |
Features & Applications
The L4970A is a stepdown monolithic power switching regulator delivering 10A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times.
Features of the L4970A include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a 15-lead multiwatt plastic power package and requires few external components. Efficient operation at switching frequencies up to 500KHz allows reduction in the size and cost of external filter components.
Features:
- 10 A Output Current
- 5.1 V to 40 V Output Voltage Range
- 0 TO 90% Duty Cycle Range
- Internal Feed-Forward line Regulation
- Internal current limiting
- Precise 5.1 V ± 2% on chip Reference
- Reset and power fail functions
- Soft start
- Input/output sync pin
- Under voltage lock out with hysteretic
- Turn-on
- PWM Latch for single pulse per period
- Very High Efficiency
- Switching frequency up to 500 khz
- Thermal Shutdown
- Contineous mode operation
Available Packaging
Package Qty:
25 per Tube
Package Style:
MULTIWATT-15
Mounting Method:
Flange Mount