MFG:STMicroelectronics Category:Integrated Circuits (ICs) Package Cooled:STM D/C:05+
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L4972A, L4972AD, L4972APULLS Datasheet download
Category: Integrated Circuits (ICs)
MFG: STMicroelectronics
Package Cooled: STM
D/C: 05+
Description: IC REG SW 2A 5.1-40V STDN 20SOIC
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PDF/DataSheet Download
Datasheet: L4972A
File Size: 347143 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: L4972AD
File Size: 347143 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: L4901
File Size: 137029 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
| Technical/Catalog Information | L4972A |
| Vendor | STMicroelectronics |
| Category | Integrated Circuits (ICs) |
| Type | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Input | 15 ~ 50 V |
| Voltage - Output | 5.1 ~ 40 V |
| Current - Output | 2A |
| Power - Output | 5W |
| Package / Case | 20-DIP |
| Packaging | Tube |
| Internal Switch(s) | Yes |
| Synchronous | No |
| Rds (On) | - |
| Operating Temperature | -40°C ~ 150°C |
| Frequency - Switching | 100kHz |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | L4972A L4972A 497 6698 5 ND 49766985ND 497-6698-5 |
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. The device 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.
| 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 |
| Technical/Catalog Information | L4972AD |
| Vendor | STMicroelectronics |
| Category | Integrated Circuits (ICs) |
| Type | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Input | 15 ~ 50 V |
| Voltage - Output | 5.1 ~ 40 V |
| Current - Output | 2A |
| Power - Output | 3.75W |
| Package / Case | 20-SOIC (7.5mm Width) |
| Packaging | Tube |
| Internal Switch(s) | Yes |
| Synchronous | No |
| Rds (On) | - |
| Operating Temperature | -40°C ~ 150°C |
| Frequency - Switching | 100kHz |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | L4972AD L4972AD 497 4207 5 ND 49742075ND 497-4207-5 |
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. The device 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.
| 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 |
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