Product Information

L4972AD

L4972AD electronic component of STMicroelectronics

Datasheet
Buck Switching Regulator IC Positive Adjustable 5.1V 1 Output 2A 20-SOIC (0.295", 7.50mm Width)
Manufacturer: STMicroelectronics
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

40: USD 4.203 ea
Line Total: USD 168.12

465 - Global Stock
Ships to you between
Mon. 06 May to Fri. 10 May
MOQ: 40  Multiples: 40
Pack Size: 40

 More Buying Options & Price Grid(s)

Availability Price Quantity
465 - Warehouse 1


Ships to you between Mon. 06 May to Fri. 10 May

MOQ : 40
Multiples : 40

Stock Image

L4972AD
STMicroelectronics

40 : USD 4.203

Read More Specifications

     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Mounting Style
Package / Case
Output Voltage
Output Current
Number of Outputs
Input Voltage MAX
Topology
Switching Frequency
Series
Packaging
Type
Brand
Factory Pack Quantity :
Cnhts
Hts Code
Mxhts
Product Type
Subcategory
Taric
LoadingGif

Notes:- Show Stocked Products With Similar Attributes.

More Products By Manufacturer "Stmicroelectronics"

Image Description
L4973D3.3 electronic component of STMicroelectronics L4973D3.3

Driver; DC/DC converter; 3.5A; 0.5÷50V; Channels:1; Uoper:8÷55V
Stock : 71

L4973V3.3 electronic component of STMicroelectronics L4973V3.3

Driver; DC/DC converter; 3.5A; 0.5÷50V; Channels:1; Uoper:8÷55V
Stock : 10

L4973D5.1 electronic component of STMicroelectronics L4973D5.1

Driver; DC/DC converter; 3.5A; 5.1÷50V; Channels:1; Uoper:8÷55V
Stock : 191

L4973V5.1 electronic component of STMicroelectronics L4973V5.1

Driver; DC/DC converter; 3.5A; 5.1÷50V; Channels:1; Uoper:8÷55V
Stock : 10

L4974A electronic component of STMicroelectronics L4974A

Buck Switching Regulator IC Positive Adjustable 5.1V 1 Output 3.5A 20-DIP (0.300", 7.62mm)
Stock : 0

L4976 electronic component of STMicroelectronics L4976

Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 1A 8-Pin PDIP Tube
Stock : 130

L4972AD013TR electronic component of STMicroelectronics L4972AD013TR

Buck Switching Regulator IC Positive Adjustable 5.1V 1 Output 2A 20-SOIC (0.295", 7.50mm Width)
Stock : 0

L4973D3.3-013TR electronic component of STMicroelectronics L4973D3.3-013TR

Voltage Regulators - Switching Regulators 3.3V 3.5A Step-Down
Stock : 2000

L4973D5.1-013TR electronic component of STMicroelectronics L4973D5.1-013TR

Driver; DC/DC converter; 3.5A; 5.1÷50V; Channels:1; Uoper:8÷55V
Stock : 0

L4975A electronic component of STMicroelectronics L4975A

Driver; DC/DC converter; 5A; 5.1÷40V; Channels:1; Uoper:15÷50V
Stock : 125

More Products By Category "Switching Voltage Regulators"

Image Description
L4976 electronic component of STMicroelectronics L4976

Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 1A 8-Pin PDIP Tube
Stock : 130

L4976D electronic component of STMicroelectronics L4976D

Voltage Regulators - Switching Regulators 3.3 to 50V Step-Down
Stock : 0

L4978D electronic component of STMicroelectronics L4978D

Buck Switching Regulator IC Positive Adjustable 3.3V 1 Output 2A 16-SOIC (0.295", 7.50mm Width)
Stock : 66

L5970ADTR electronic component of STMicroelectronics L5970ADTR

Voltage Regulators - Switching Regulators STEP DOWN MONOLITHIC SWITCH REG 1.5A
Stock : 2500

L5985TR electronic component of STMicroelectronics L5985TR

Voltage Regulators - Switching Regulators 2a Step-Down Switching Reg
Stock : 8000

L5988DTR electronic component of STMicroelectronics L5988DTR

Voltage Regulators - Switching Regulators 4A Step Down Reg 2.9V to 18V 200ns
Stock : 914

L6712AQTR electronic component of STMicroelectronics L6712AQTR

Buck Regulator Positive Output Step-Down DC-DC Controller IC 36-VFQFPN (6x6)
Stock : 0

L6712QTR electronic component of STMicroelectronics L6712QTR

Voltage Regulators - Switching Regulators 2-Ph Interleaved
Stock : 0

L6902D013TR electronic component of STMicroelectronics L6902D013TR

Buck Switching Regulator IC Positive Adjustable 1.235V 1 Output 1A 8-SOIC (0.154", 3.90mm Width)
Stock : 2500

L6920DBTR electronic component of STMicroelectronics L6920DBTR

Voltage Regulators - Switching Regulators SYNCRONOUS RECT. STEP UP CONVERTER
Stock : 0

Additional Infomation About Product

L4972A 2A SWITCHING REGULATOR 1 Features Figure 1. Packages 2A OUTPUT CURRENT 5.1V TO 40V OUTPUT VOLTAGE RANGE 0 TO 90% DUTY CYCLE RANGE INTERNAL FEED-FORWARD LINE REG. PowerDIP20 (16+2+2) SO20 INTERNAL CURRENT LIMITING PRECISE 5.1V 2% ON CHIP REFERENCE Table 1. Order Codes RESET AND POWER FAIL FUNCTIONS Part Number Package INPUT/OUTPUT SYNC PIN L4972A DIP20 (16+2+20) UNDER VOLTAGE LOCK OUT WITH L4972AD SO20 HYSTERETIC TURN-ON L4972AD013TR SO20 in Tape & Reel PWM LATCH FOR SINGLE PULSE PER PERIOD VERY HIGH EFFICIENCY uses a DMOS output transistor to obtain very high SWITCHING FREQUENCY UP TO 200KHz efficiency and very fast switching times. Features THERMAL SHUTDOWN of the L4972 include reset and power fail for micro- CONTINUOUS MODE OPERATION processors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a Powerdip 16 + 2 + 2 and SO20 2 Description large plastic packages and requires few external The L4972A is a stepdown monolithic power components. Efficient operation at switching fre- switching regulator delivering 2A at a voltage vari- quencies up to 200KHz allows reduction in the able from 5.1 to 40V. size and cost of external filter component. Realized with BCD mixed technology, the device Figure 2. Block Diagram Rev. 3 May 2005 1/22L4972A Table 2. Pin Description N Pin Function 1 BOOTSTRAP A C capacitor connected between this terminal and the output allows to drive boot properly the internal D-MOS transistor. 2 RESET DELAY A C capacitor connected between this terminal and ground determines the reset d signal delay time. 3 RESET OUT Open Collector Reset/power Failand the output voltages are safe. Signal Output. This output is high when the supply 4 RESET INPUT Input of Power Fail Circuit. The threshold is 5.1V. It may be connected via a divider to the input for power fail function. It must be connected to the pin 14 an external 30K resistor when power fail signal not required. 5, 6 15, GROUND Common Ground Terminal 16 7 FREQUENCY A series RC network connected between this terminal and ground determines the COMPENSATION regulation loop gain characteristics. 8 SOFT START Soft Start Time Constant. A capacitor is connected between the sterminal and ground to define the soft start time constant. 9 FEEDBACK INPUT The Feedback Terminal of the Regulation Loop. The output is connected directly to this terminal for 5.1V operation It is connected via a divider for higher voltages. 10 SYNC INPUT Multiple L4972As are synchronized by connecting pin 10 inputs together or via an external syncr. pulse. 11 SUPPLY VOLTAGE Unregulated Input Voltage. 12, 19 N.C. Not Connected. 13 V 5.1V V Device Reference Voltage. ref ref 14 V Internal Start-up Circuit to Drive the Power Stage. start 17 OSCILLATOR R . External resistor connected to ground determines the constant charging osc current of C . osc 18 OSCILLATOR C . External capacitor connected to ground determines (with R ) the switching osc osc frequency. 20 OUTPUT Regulator Output. Figure 3. Pin Connection (Top view) BOOTSTRAP 1 20 OUTPUT RESET DELAY 2 19 N.C. RESET OUT 3 18 C OSC P. FAIL INPUT 4 17 R OSC GND 5 16 GND GND 6 15 GND FREQ. COMP. 7 14 Vstart SOFT START 8 13 Vref FEEDBACK IN. 9 12 N.C. SYNC INPUT 10 11 Vi DIP20 2/22

HS Compliance

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:

Stmicroelectronics may also be referenced as

C-Max
C-Max (VA)
SG3
ST
ST MICROELECTRONICS
ST2
ST7
STM
STMICRELECTRONICS
STN

Looking for help? Visit our FAQ's Section to answer to all your questions

Resources

Company

Support

 

X-ON Worldwide Electronics

Welcome To X-ON ELECTRONICS
For over three decades, we have been advocating and shaping the electronic components industry. Our management complements our worldwide business scope and focus. We are committed to innovation, backed by a strong business foundation. If you need a trustworthy supplier of electronic components for your business – look no further.
  +61 8 9358 9358 |   sales@x-on.com.au |   Chat
 
Policies | Terms and Conditions | Sitemap

Copyright ©2024  X-ON Electronic Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing.
All prices exclude GST.

Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted