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L4972A

Switching Converters, Regulators & Controllers 5.1 to 40V 2.0 Amp

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SeekIC No. : 00585816 Detail

L4972A: Switching Converters, Regulators & Controllers 5.1 to 40V 2.0 Amp

L4972A Data Sheet

floor Price/Ceiling Price

US $ 1.73~1.83 / Piece | Get Latest Price
Part Number:
L4972A
Mfg:
STMicroelectronics
Supply Ability:
5000

Price Break

  • Qty
  • 0~390
  • 390~500
  • Unit Price
  • $1.83
  • $1.73
  • Processing time
  • 15 Days
  • 15 Days
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Total Cost: $ 0.00

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Product Details

Quick Details

Output Voltage : 50 V Mounting Style : Through Hole
Package / Case : PDIP-20 Packaging : Tube    

Description

Output Current :
Output Power :
Input Voltage :
Switching Frequency :
Operating Temperature Range :
Packaging : Tube
Mounting Style : Through Hole
Package / Case : PDIP-20
Output Voltage : 50 V


Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
V11 Input voltage 55 V
V11 Input to output voltage difference 50 V
V20 Negative output DC voltage -1
-5		 V
I20 Negative output peak voltage at t = 0.1ms; f = 100KHz Internally Limited V
V1 Voltage at pin 3 and 6 65
V11 + 15		 V
V4,V8 Voltage at pin 2 12 V
V3 Pin 3 sink current 50 mA
I3 Pin 5 source current 50 mA
PTOT Power dissipation at Tcase 90°C 5 / 3.75(*)
1.3/1 (*)		 W
W
Tj, Tstg Junction and storage temperature -40 to 150 °C



Description

The L4972Aisa stepdownmonolithicpowerswitching regulatordelivering2Aat avoltagevariable from 5.1 to 40V.

Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiencyand very fast switching times. Featuresofthe L4972A include reset and power fail for microprocessors,
feed forward line regulation, soft start ,limiting current and thermal protection. L4972A is mountedin a Powerdip16 + 2 + 2and SO20large plastic packages and requires few external components. Efficient operation at switching frequencies up to 200KHz allows reduction in the size and cost of external filter component.




Parameters:

Technical/Catalog InformationL4972A
VendorSTMicroelectronics
CategoryIntegrated Circuits (ICs)
TypeStep-Down (Buck)
Number of Outputs1
Voltage - Input15 ~ 50 V
Voltage - Output5.1 ~ 40 V
Current - Output2A
Power - Output5W
Package / Case20-DIP
PackagingTube
Internal Switch(s)Yes
SynchronousNo
Rds (On)-
Operating Temperature-40°C ~ 150°C
Frequency - Switching100kHz
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names L4972A
L4972A
497 6698 5 ND
49766985ND
497-6698-5



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