SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
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SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
Professional Electronic Component Distributor!
2026/6/24
LMS1587IS-1.5/NOPB is a high-current fixed-output LDO linear regulator manufactured by Texas Instruments. It provides stable 1.5V low-dropout voltage output and reliable power protection for various electronic systems.
Category:Integrated Circuits (ICs),Power Management (PMIC),Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Current - Output:3A
Mfr:Texas Instruments
Current - Quiescent (Iq):7 mA
Packaging:Tube
Current - Supply (Max):13 mA
Part Status:Active
PSRR:60 ~ 72 dB (120Hz)
Output Configuration:Positive
Protection Features:Over Current, Over Temperature
Output Type:Fixed
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Voltage - Input (Max):13V
Package / Case:TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Voltage - Output (Min/Fixed):1.5V
Voltage Dropout (Max):1.3V @ 3A
High Output Current:This LDO regulator supports a maximum continuous output current of 3A, which can meet the high-current power supply demand of core chips and high-power peripheral devices. It maintains stable voltage output without fluctuation under heavy-load operating conditions.
Fixed Voltage Output:The chip features a fixed 1.5V positive voltage output with accurate and stable voltage level. It eliminates the need for external voltage divider circuits, simplifying peripheral circuit design and reducing board layout costs.
Excellent Ripple Rejection:It achieves a PSRR of 60 to 72 dB at 120Hz, effectively suppressing input voltage ripples and high-frequency interference. This performance ensures pure and smooth output power for precision electronic components.
Dual Safety Protection:Equipped with built-in over-current and over-temperature protection functions to cope with circuit overload and abnormal high temperature. It can automatically limit current or shut down to avoid chip burnout and circuit damage during abnormal operation.
Wide Temp Tolerance:Its operating temperature range covers -40°C to 125°C, adapting to extreme low and high temperature working environments. It maintains consistent power supply performance in industrial, automotive and outdoor electronic equipment.
Low Quiescent Power:The chip has a quiescent current of only 7mA and a maximum supply current of 13mA, featuring low power consumption. It effectively reduces system standby power loss and improves the energy efficiency of terminal equipment.
Compact SMD Design:Adopting TO-263AA surface-mount package, it features small size and good heat dissipation performance. The compact package is suitable for miniaturized and highly integrated PCB layout designs.
MCU Power Supply:Provides stable 1.5V core operating voltage for industrial control mainboard microcontroller units. It ensures the MCU operates stably during long-term continuous data processing and signal control tasks.
FPGA Voltage Regulation:Serves as a dedicated power regulator for low-voltage FPGA chips in embedded logic control boards. It filters power ripples to guarantee stable logic operation and signal transmission of FPGA devices.
Automotive ECU Power:Supplies power for vehicle body electronic control unit low-voltage auxiliary circuits. It adapts to the wide temperature variation of automotive working environment and resists vehicle power supply voltage fluctuation interference.
Industrial Sensor:Provides precise 1.5V power supply for high-precision temperature and pressure industrial sensors. It avoids data deviation caused by power instability and ensures accurate sensor signal collection.
Network Module Power:Regulates voltage for wired Ethernet communication modules and IoT signal transmission modules. It maintains stable power output during high-frequency data transceiving to prevent network disconnection and signal loss.
Server Auxiliary Power:Acts as an auxiliary power supply chip for server storage and signal processing sub-boards. It provides reliable low-voltage power support for on-board precision electronic components.
LMS1587IS-1.5/NOPB is a high-performance, high-reliability fixed LDO regulator with large current output and superior anti-interference capability. It is a cost-effective and stable power management solution widely applicable to industrial, automotive and embedded electronic systems.