Name: L4973D33013TR IC REG BUCK ADJ33V 35A 20SO STMicroelectronics
Brand: STMicroelectronics
Price: 1 USD

L4973D3.3-013TR IC REG BUCK ADJ/3.3V 3.5A 20SO STMicroelectronics

Categories	Power Management ICs
Brand Name:	STMicroelectronics
Model Number:	L4973D3.3-013TR
MOQ:	1
Price:	Based on current price
Payment Terms:	T/T
Supply Ability:	In stock
Delivery Time:	3-5 work days
Packaging Details:	anti-static bag & cardboard box
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable (Fixed)
Number of Outputs:	1
Voltage - Input (Min):	8V
Voltage - Input (Max):	55V
Voltage - Output (Min/Fixed):	0.5V (3.3V)
Voltage - Output (Max):	50V
Current - Output:	3.5A
Frequency - Switching:	100kHz ~ 300kHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SO

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Sanhuang electronics (Hong Kong) Co., Limited

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Product Details
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L4973D3.3-013TR IC REG BUCK ADJ/3.3V 3.5A 20SO STMicroelectronics

Product Details

Description

The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15Ω) to obtain very high efficiency and very fast switching times. Switching frequency up to 300KHz are achievable (the maximum power dissipation of the packages must be observed).

Features

■ Up to 3.5A step down converter
■ Operating input voltage from 8V to 55V
■ 3.3V and 5.1V (±1%) fixed output, and adjustable outputs from:
– 0.5V to 50V (3.3 type)
– 5.1V to 50V (5.1 type)
■ Frequency adjustable up to 300kHz
■ Voltage feed forward
■ Zero load current operation (min 1mA)
■ Internal current limiting (pulse by pulse and HICCUP mode)
■ Precise 5.1V (1.5%) reference voltage externally available
■ Input/output synchronization function
■ Inhibit for zero current consumption (100mA typ. at VCC = 24V)
■ Protection against feedback disconnection
■ Thermal shutdown
■ Output over voltage protection
■ Soft start function

Specifications

Attribute	Attribute Value
Manufacturer	STMicroelectronics
Product Category	DC Switching Regulators
Series	L4973
Type	Charge Pump
Packaging	Cut Tape (CT) Alternate Packaging
Unit-Weight	0.009408 oz
Mounting-Style	SMD/SMT
Package-Case	20-SOIC (0.295", 7.50mm Width)
Operating-Temperature	-40°C ~ 150°C (TJ)
Mounting-Type	Surface Mount
Output-Type	Adjustable (Fixed)
Function	Step-Down
Supplier-Device-Package	20-SO
Number-of-Outputs	1 Output
Topology	Buck
Frequency-Switching	100kHz ~ 300kHz
Current-Output	3.5A
Output-Configuration	Positive
Output Voltage	0.5V (3.3V)
Voltage-Output-Max	50V
Synchronous-Rectifier	No
Voltage-Input-Min	8V
Voltage-Input-Max	55V
Output-Voltage	5.1 V
Input-Voltage-MAX	55 V
Output-Current	3.5 A
Switching-Frequency	90 kHz to 110 kHz
Package-Case	SO-20

Functional compatible component

Form,Package,Functional compatible component

Manufacturer Part#	Description	Manufacturer	Compare
L4972AD Power Circuits	2 A SWITCHING REGULATOR	STMicroelectronics	L4973D3.3-013TR vs L4972AD
L4973D3.3 Power Circuits	3.5 A Switching Regulator	STMicroelectronics	L4973D3.3-013TR vs L4973D3.3
IRU3011CWPBF Power Circuits	SWITCHING CONTROLLER, 250kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, SOIC-20	Infineon Technologies AG	L4973D3.3-013TR vs IRU3011CWPBF
LM2636M Power Circuits	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, SO-20	Rochester Electronics LLC	L4973D3.3-013TR vs LM2636M
HIP6004ACB Power Circuits	Switching Controller	Renesas Electronics Corporation	L4973D3.3-013TR vs HIP6004ACB
LM2636M/NOPB Power Circuits	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, SO-20	Rochester Electronics LLC	L4973D3.3-013TR vs LM2636M/NOPB
L4973D5.1 Power Circuits	3.5 A Switching Regulator	STMicroelectronics	L4973D3.3-013TR vs L4973D5.1
IRU3011CW Power Circuits	Switching Controller, 250kHz Switching Freq-Max, PDSO20, PLASTIC, SOIC-20	Infineon Technologies AG	L4973D3.3-013TR vs IRU3011CW
L4973D5.1-013TR Power Circuits	3.5 A Switching Regulator	STMicroelectronics	L4973D3.3-013TR vs L4973D5.1-013TR
L4972AD013TR Power Circuits	2 A SWITCHING REGULATOR	STMicroelectronics	L4973D3.3-013TR vs L4972AD013TR

Descriptions

Buck Switching Regulator IC Positive Adjustable (Fixed) 0.5V (3.3V) 1 Output 3.5A 20-SOIC (0.295", 7.50mm Width)

Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO T/R

Voltage Regulators - Switching Regulators 3.3V 3.5A Step-Down

L4973D3.3-013TR IC REG BUCK ADJ/3.3V 3.5A 20SO STMicroelectronics

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