L5973D013TR
Voltage Regulators - DC DC Switching Regulators
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Voltage | 18.117 V |
| Output Current | 2.5 A |
| Function | Step-down type |
| Working Voltage V | 20 V |
| Switching Freq Hz | 250 kHz |
| Channels | 1 |
| Type | Description |
|---|---|
| Iq A | 0.003 A |
| Switch tube (built-in/external) | Built-in |
| Operating Temp | -40°C ~ +150°C @(TJ) |
| Features | Cycle-by-cycle current limiting;Frequency synchronization;Overcurrent Protection |
| Topology | Buck |
| Package / Case | SOIC-8 |
Product Introduction
The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions.
The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the Rth(j-amb) down to approximately 40 °C/W.
The device uses an internal P-channel D-MOS transistor (with a typical Rdson of 250 mΩ) as switching element to minimize the size of the external components.
An internal oscillator fixes the switching frequency at 250 kHz.
Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus, available in all computer related applications.
Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.
Features
- 2.5 A internal switch
- Operating input voltage from 4 V to 36 V
- 3.3 V/(±2%) reference voltage
- Output voltage adjustable from 1.235 V to 35 V
- Low dropout operation: 100% duty cycle
- 250 kHz internally fixed frequency
- Voltage feedforward
- Zero load current operation
- Internal current limiting
- Inhibit for zero current consumption
- Synchronization
- Protection against feedback disconnection
- Thermal shutdown
Applications
- - Consumer: STB, DVD, TV, VCR, car radio, LCD monitors - Networking: XDSL, modems, DC-DC modules - Computer: printers, audio/graphic cards, optical storage, hard disk drive - Industrial: changers, car battery, DC-DC converters
Datasheet
Alternative Parts
Common L5973D013TR alternatives overseas buyers search for:
- A5975D (request quote)
- A5973D013TR (request quote)
- L5972D (request quote)
- HXL1509-ADJ (request quote)
- SXL1509-ADJE1 (request quote)
- DL1509-ADJE1 (request quote)
- AP1509-SG-13-JSM (request quote)
- XL1509-ADJBS (request quote)
- XXL1509-ADJ (request quote)
- XBL1509-ADJ (request quote)
- A5975ADTR (request quote)
- B5973DTR (request quote)
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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