L5970AD - ST Microelectronics

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

Part No

L5970AD
Manufacturer

ST Microelectronics
ChipWorker Part#

CW5355250
Category

DC to DC Converter
Package

SOIC-8
Description

Conv DC-DC 4.4V to 36V Step Down Single-Out 1.235V to 35V 1A 8Pin SO N Tube
Documentation

Datasheet

L5970AD Global Supplier

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L5970AD Specifications

Attribute	Attribute Value

Part Number	L5970AD
Manufacturer	ST Microelectronics
ChipWorker Part#	CW5355250
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Number of Outputs	1 Output
Output Voltage	1.235V ~ 35V
Output Current	1.5 A
Number of Positions	8 Position
Quiescent Current	2.7 mA
Switching Frequency	500 kHz
Input Voltage (Max)	36 V
Input Voltage (Min)	4.4 V
Output Voltage (Max)	35 V
Output Voltage (Min)	1.235 V
Output Current (Max)	1 A
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	4.4 V
Input Voltage	4.4V ~ 36V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.25 mm
Operating Temperature	-40℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17

Product Description

The L5970AD is a step-down monolithic power Switching Regulator with a switch current limit of 1.5A so it is able to deliver more than 1A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 to 35V. The device uses an internal P-channel D-MOS transistor (with a typical RDSON of 200mR) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency. An internal oscillator fixes the switching frequency at 500kHz to minimize the size of external components. Having a minimum input voltage of 4.4V only, it is particularly suitable for 5V bus. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.
Inhibit for zero current consumption
Internal current limiting
Protection against feedback disconnection
Synchronization
Thermal shutdown
Voltage feed-forward
Zero load current operation
Low dropout operation - 100% duty cycle
3.3V (±2%) Reference voltage

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