ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR -5V 1.5A D2PAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-35V
- Voltage - Output (Min/Fixed)：-5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.4V @ 1A (Typ)
- Current - Output：1.5A
- Current - Quiescent (Iq)：3 mA
- Current - Supply (Max)：-
- PSRR：60dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：D2PAK
- Grade：-
- Qualification：-
Download product information
Overview
The L7905CD2T-TR is a three-terminal fixed negative voltage regulator from the L79xxC series by STMicroelectronics. It provides a nominal output voltage of -5 V with a maximum output current capability of 1.5 A. The device operates within an input voltage range of -8 V to -20 V and features thermal overload protection, short circuit protection, and output transition SOA protection. It is housed in a D²PAK surface-mount package.
Feature Summary
- Provides local on-card regulation for stable negative power supplies
- Includes built-in thermal overload and short circuit protection mechanisms
- Compatible with standard positive regulator voltage options for split supply designs
Applications
- Split power supply systems requiring negative rails
- Local on-card voltage regulation
- Negative power distribution networks
Procurement Notes
Verify the specific ordering code against official manufacturer documentation to confirm package type and electrical characteristics. Ensure that the procurement channel sources genuine components directly from authorized distributors or the manufacturer to avoid counterfeit products. Cross-reference the part number with the latest datasheet revision history to confirm current production status and any potential design changes.
Selection Notes
Select this component when a fixed -5 V negative rail is required with up to 1.5 A load capacity. Consider the D²PAK package for surface-mount assembly requirements. Evaluate thermal management needs based on the junction-to-ambient thermal resistance, as adequate heat sinking may be necessary to sustain maximum output currents without triggering thermal protection.
Part Context
This component belongs to the L79xxC series of three-terminal negative regulators. The series offers multiple fixed output voltages including -5 V, -8 V, -12 V, and -15 V. These devices are designed to complement the L78xx positive regulator series, facilitating the creation of dual-polarity power supplies in electronic circuits.
Replacement Considerations
MC7905ACD2TG (onsemi)
FAQ
What protection features are integrated into the L7905CD2T-TR?
The device includes thermal overload protection, short circuit protection, and output transition safe operating area (SOA) protection.
Can the L7905CD2T-TR be used to create adjustable voltage outputs?
Yes, although designed primarily as a fixed voltage regulator, it can be used with external components to obtain adjustable voltages and currents.
