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LDLN025M45R The STMicroelectronics LDLN025M45R is an ultra-low noise LDO voltage regulator with a fixed 4.5V output and 250mA current capability. It is supplied in a compact SOT-23-5 package.
Mfr Part #:

LDLN025M45R

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics LDLN025M45R is an ultra-low noise LDO voltage regulator with a fixed 4.5V output and 250mA current capability. It is supplied in a compact SOT-23-5 package.
✓ Total Stock: 17,000 pcs
$ Price Range: $0.28

LDLN025M45R Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
12,000 pcs
On Request
12000 pcs On Request 1 On Request On Request On Request On Request On Request
Risen Electronics ✓
Non-Authorised Inventory information
5,000 pcs
On Request
5000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LDLN025M45R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Failure Rate
Mounting Style
Mounting Type
Number of Outputs
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
PSRR
Protection Features
Quiescent Current
Supplier Device Package
Type
Voltage
Voltage Dropout (Max)
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LDLN025M45R Description

Short technical summary and product information.

The STMicroelectronics LDLN025M45R is a high-performance, ultra-low noise LDO (Low Dropout) voltage regulator designed for efficient power management. It provides a stable fixed output voltage of 4.5V and can deliver up to 250mA of current.

 

Key electrical characteristics include a wide input voltage range from 1.5V to 5.5V, a low quiescent current of 12 uA, and excellent PSRR of 80dB. The dropout voltage is 50mV at 100mA and 120mV at 250mA, making it suitable for battery-powered applications.

 

This regulator features protection mechanisms such as over current, over temperature, and short circuit protection, along with a soft start feature. It operates across a wide temperature range of -40°C to 125°C.

 

The LDLN025M45R is available in a surface-mount SOT-23-5 package, facilitating integration into compact electronic designs.

LDLN025M45R Quick Information

Product Type: LDO Voltage Regulator
Series: LDLN025
Canonical Name: LDLN025M45R Ultra-low noise LDO Voltage Regulator
Subcategory: PMIC - Power Management ICs

LDLN025M45R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LDLN025M45R Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

LDLN025M45R Features

  • Ultra low noise LDO voltage regulator.
  • Fixed 4.5V output voltage.
  • 250mA maximum output current.
  • 12µA typical quiescent current.
  • 80dB PSRR at low frequencies.

LDLN025M45R Applications

  • Ideal for low power applications.
  • Suitable for battery powered devices.
  • Used in portable electronic equipment.
  • Power supply for sensitive circuits.
  • General purpose voltage regulation.

LDLN025M45R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the LDLN025M45R?

1.5V to 5.5V.

What package does the LDLN025M45R come in?

SOT-23-5 surface mount package.

What is the operating temperature range of the LDLN025M45R?

-40°C to +125°C.

What is the output voltage of the LDLN025M45R?

4.5V fixed.

What is the typical dropout voltage?

50mV at 100mA load, 120mV at 250mA load.

What is the quiescent current?

12µA.

What protection features are included?

Over current, over temperature, short circuit, and soft start.

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