L5973D
| Parameters | |
|---|---|
| Height | 1.25mm |
| Length | 5mm |
| Width | 4mm |
| REACH SVHC | No SVHC |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Lead Free |
| Factory Lead Time | 1 Week |
| Lifecycle Status | ACTIVE (Last Updated: 7 months ago) |
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) Exposed Pad |
| Number of Pins | 8 |
| Weight | 70.590313mg |
| Operating Temperature | -40°C~150°C TJ |
| Packaging | Tube |
| JESD-609 Code | e3 |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Number of Terminations | 8 |
| ECCN Code | EAR99 |
| Terminal Finish | Matte Tin (Sn) |
| Subcategory | Switching Regulator or Controllers |
| Technology | MOS |
| Terminal Position | DUAL |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 260 |
| Frequency | 250kHz |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Base Part Number | L5973 |
| Function | Step-Down |
| Number of Outputs | 1 |
| Efficiency | 90 % |
| Voltage - Input (Max) | 36V |
| Output Voltage | 35V |
| Output Type | Adjustable |
| Max Output Current | 2A |
| Operating Supply Voltage | 25V |
| Voltage - Input (Min) | 4V |
| Input Voltage-Nom | 12V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Output Configuration | Positive |
| Current - Output | 2.5A |
| Max Output Voltage | 35V |
| Voltage - Output (Min/Fixed) | 1.235V |
| Topology | Buck |
| Control Mode | VOLTAGE-MODE |
| Reference Voltage | 3.3V |
| Synchronous Rectifier | No |
| Min Output Voltage | 1.235V |
L5973D Description
The STMicroelectronics L5973D is a step-down monolithic power switching regulator with a minimum switch current limit of 2.5 A, allowing it to provide more than 2 A DC current to the load depending on the application conditions. The L5973D uses an internal P-Channel D-MOS transistor (with a type of 200 m?) as a switching element to avoid the use of a bootstrap capacitor and guarantee high efficiency.
L5973D Features
Zero loads current operation
Internal current limiting
Inhibit for zero current consumption
Output voltage adjustable from 1.235 V to 35 V
Low dropout operation: 100 % duty cycle
250 kHz internally fixed frequency
Voltage feedforwardSynchronization
2.5 A internal switch
Operating input voltage from 4 V to 36 V
3.3 V / (±2%) reference voltage
Synchronization
Protection against feedback disconnection
Thermal shutdown
L5973D Applications
Networking: XDSL, modems, DC-DC modules
Computer: printers, audio/graphic cards, optical storage, hard disk drive
Consumer: STB, DVD, TV, VCR, car radio, LCD monitors
Industrial: changers, car battery, DC-DC converters
