Switching Converters, Regulators & Controllers 5.1 to 28V 4.0 Amp
L4964: Switching Converters, Regulators & Controllers 5.1 to 28V 4.0 Amp
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.
| Output Voltage : | 38 V | Mounting Style : | Through Hole | ||
| Package / Case : | Multiwatt-15 | Packaging : | Tube |

| Symbol | Parameter | Value | Unit |
| Vi | Input voltage | 36 | V |
| Vi - V2 | Input to output voltage difference | 38 | V |
| V2 | Negative output DC voltage | -1 -7 |
V |
| V12 | Negative output peak voltage at t = 0.1ms; f = 100KHz | 10 | V |
| V5,V7,V9 | Voltage at pin 3 and 6 | Vi | V |
| V10,V6,V13 | Voltage at pin 2 | 1 | V |
| V14 | Pin 3 sink current | 20 | mA |
| I9 | Pin 5 source current | 50 | mA |
| I11 | Power dissipation at Tcase 90°C | 20 | W |
| Tj, Tstg | Junction and storage temperature | -40 to 150 | °C |
The L4964 is a stepdownpower switching regulator delivering4A at a voltage variable from 5.1V to 28V.
Features of the device include overload protection, soft start, remote inhibit, thermal protection, a reset output for microprocessors and a PWMcomparator input for synchronization in multichipconfigurations.
The L4964 is mounted in a 15-leadMultiwatt) plastic power package and requires very few external components.
Efficient operation at switching frequencies up to 120kHz allowsa reductionin the size and cost ofexternal filter components.
| Technical/Catalog Information | L4964 |
| Vendor | STMicroelectronics |
| Category | Integrated Circuits (ICs) |
| Type | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Input | 9 ~ 36 V |
| Voltage - Output | 5.1 ~ 28 V |
| Current - Output | 4A |
| Power - Output | 20W |
| Package / Case | Multiwatt-15 (Vertical, Bent and Staggered Leads) |
| Packaging | Tube |
| Internal Switch(s) | Yes |
| Synchronous | Yes |
| Rds (On) | - |
| Operating Temperature | 0°C ~ 125°C |
| Frequency - Switching | 50kHz |
| Drawing Number | * |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | L4964 L4964 497 1409 5 ND 49714095ND 497-1409-5 |