L4970A - ST Microelectronics

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

L4970A
Manufacturer

ST Microelectronics
ChipWorker Part#

CW2386764
Category

DC to DC Converter
Package

Multiwatt-15
Description

Conv DC-DC 15V to 50V Step Down Single-Out 5.1V to 40V 10A 15Pin(15+Tab) MULTIWATT V
Documentation

Datasheet

L4970A Global Supplier

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L4970A Specifications

Attribute	Attribute Value

Part Number	L4970A
Manufacturer	ST Microelectronics
ChipWorker Part#	CW2386764
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	15 Pin
Case/Package	Multiwatt-15
Frequency	500 kHz
Supply Voltage (DC)	50.0V (max)
Number of Outputs	1 Output
Input Voltage (DC)	50.0 V
Output Voltage	5.1V ~ 40V
Output Current	10 A
Number of Channels	1 Channel
Number of Positions	15 Position
Quiescent Current	19 mA
voltage rating	1.10 V
Switching Frequency	500 kHz
Topology	Buck
Input Voltage (Max)	50 V
Input Voltage (Min)	15 V
Output Voltage (Max)	40 V
Output Voltage (Min)	5.1 V
Output Current (Max)	10 A
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	15 V
Input Voltage	15V ~ 50V
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Size-Length	19.6 mm
Size-Width	5 mm
Size-Height	10.7 mm
Operating Temperature	-40℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

The L4970A is a Step-down Monolithic Power Switching Regulator IC delivering 10A at a voltage variable from 5.1 to 40V. This device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of this 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 multi-watt 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.
0 to 90% Duty cycle range
Internal feed-forward line regulation
Internal current limiting
Precise 5.1V ±2% on-chip reference
Reset and power fail functions
Input/output sync pin
Under voltage lock out with hysteretic turn-on
PWM latch for single pulse per period
Very high efficiency
Continuous mode operation

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