Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

STMicroelectronics LDK130M10R

Name: LDK130M10R
Brand: STMicroelectronics
SKU: LDK130M10R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: LDK130M10R

Manufacturer:: STMicroelectronics

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SC-74A, SOT-753

Datasheet:: LDK130M10R.pdf

Description:: IC REG LINEAR 1V 300MA SOT23-5

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,659

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

LDK130M10R from STMicroelectronics is an AEC-Q100 Grade 1 automotive-qualified low-dropout linear regulator in SOT23-5L package, delivering 300 mA output current with 100 mV typical dropout at 100 mA, 30 µA typical quiescent current, ±2.0% output voltage tolerance at 25 °C, and operation across -40 °C to 125 °C ambient. It powers ADAS domain controllers requiring ultra-low noise and stable PoL regulation from 1.9–5.5 V input rails.

For engineers reviewing the LDK130M10R datasheet, LDK130M10R pinout, LDK130M10R application, or LDK130M10R equivalent, this page delivers verified electrical specs, validated SOT23-5L terminal mapping, automotive-grade thermal performance data, and real-world use cases in battery-powered ADAS and infotainment subsystems.

Technical Context

The LDK130M10R implements a PMOS pass transistor architecture enabling ultra-low dropout and minimal load-dependent voltage shift. Its internal bandgap reference and error amplifier maintain output stability across temperature and line/load transients, with integrated thermal shutdown (160 °C) and short-circuit current limiting (450 mA typical).

Logic-controlled enable functionality supports system-level power sequencing: EN pin thresholds are specified as ≤0.4 V (low) and ≥1.2 V (high) over full temperature range, ensuring robust wake-up/sleep control in automotive microcontroller domains.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	300 mA guaranteed - supports dual-core MCU + CAN transceiver + sensor interface without derating at 125 °C junction.
Dropout Voltage	100 mV typ. at 100 mA - enables 2.5 V output from 2.6 V Li-ion cell under load, preserving battery runtime.
Quiescent Current	30 µA typ. - sustains >1-year shelf life in always-on vehicle telematics modules with 100 µAh backup battery.
Noise Performance	51 µV_RMS (10 Hz–100 kHz) - meets <100 µV_RMS analog supply requirement for 12-bit ADCs in camera ECU front-ends.
Supply Rejection	55 dB (120 Hz–10 kHz) - suppresses ripple from switching DC/DC converters feeding adjacent high-speed SerDes lanes.
Operating Temp	-40 °C to +125 °C - qualified for engine bay and ADAS radar module mounting locations per AEC-Q100 Grade 1.
Output Tolerance	±2.0% at 25 °C - ensures reliable boot of automotive SoCs requiring 3.3 V ±3% supply during cold cranking.

Pinout & Package

SOT23-5L package: 5-terminal surface-mount package with exposed thermal pad (not electrically connected), 1.3 mm × 2.9 mm footprint, 1.45 mm height, JEDEC MO-178AC compliant.

Pin/Terminal	Circuit Role	Design Meaning
1 (IN)	Input voltage supply	Accepts 1.9–5.5 V DC; requires local 1 µF ceramic decoupling within 3 mm of pin to ensure stability and transient response.
2 (GND)	Power ground reference	Must be connected to low-impedance PCB ground plane; serves as return path for all internal bias and output current.
3 (EN)	Enable logic input	Active-high control: <0.4 V = shutdown (<1 µA I_Q), >1.2 V = active; compatible with 1.8 V/3.3 V GPIO without level shifting.
4 (BYP/ADJ)	Bypass or adjust node	Fixed version: optional 10 nF bypass capacitor reduces output noise; adjustable version: sets V_OUT via external resistor divider.
5 (OUT)	Regulated output	Delivers stable 3.0 V (M10R suffix) with ±2% accuracy; requires 1–22 µF ceramic output capacitor with ESR <1 Ω @ 100 kHz.

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Validated for automotive applications operating from -40 °C to +125 °C ambient, including engine control and ADAS ECUs.
Ceramic capacitor compatibility	Stable with 1 µF C_OUT; eliminates need for tantalum or aluminum electrolytic, reducing board area and improving reliability.
Logic-controlled shutdown	EN pin draws <100 nA; enables deep-sleep modes in telematics gateways with sub-µA system standby current.
Internal protection	Thermal shutdown (160 °C) with 20 °C hysteresis and constant-current short-circuit limiting (450 mA) prevent field failures.
Low-noise architecture	51 µV_RMS noise and 55 dB SVR allow direct powering of RF receivers and precision analog sensors without additional filtering.

Applications

ADAS Camera Module

Automotive Infotainment SoC

Use Scenario: Powers image signal processor (ISP) and MIPI CSI-2 serializer in rear-view camera ECU with 3.0 V rail.

IC Role / Device Role / Timing Role: Primary PoL regulator supplying clean 3.0 V to ISP core and I/O banks; maintains timing margin during engine cranking dips.

Use Value: 100 mV dropout preserves 3.0 V output down to 3.1 V input, avoiding brownout resets during 8 V battery sag events.

Use Scenario: Supplies 3.0 V to audio codec and touch controller in head unit with shared 3.3 V/3.0 V domain.

IC Role / Device Role / Timing Role: Secondary LDO isolating noise-sensitive audio circuitry from noisy 3.3 V main SoC rail.

Use Value: 51 µV_RMS noise prevents audible hiss in Class D amplifier outputs; 55 dB SVR rejects DC/DC switching artifacts.

Telematics Control Unit (TCU)

Body Control Module (BCM)

Use Scenario: Provides always-on 3.0 V supply to GNSS receiver and cellular modem baseband in LTE-connected TCU.

IC Role / Device Role / Timing Role: Always-on LDO with EN pin controlled by MCU sleep state; transitions between 30 µA active and <1 µA shutdown.

Use Value: 30 µA quiescent current extends 12 V battery life to >1 year in parked vehicle monitoring mode.

Use Scenario: Regulates 3.0 V for LIN transceiver and door lock actuator drivers in distributed BCM nodes.

IC Role / Device Role / Timing Role: Robust PoL regulator handling load dumps up to 7 V input and reverse-battery transients via internal clamping.

Use Value: -0.3 V to 7 V absolute max input rating withstands ISO 7637-2 Pulse 5a (load dump) without external TVS.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Torex XC6210B302MR-G	300 mA, 250 mV dropout at 100 mA, 1 µA shutdown current, no AEC-Q100 qualification	Consumer portable devices only; not suitable for automotive under-hood or safety-critical domains	Select only for cost-sensitive non-automotive designs where Grade 1 qualification is unnecessary.
Analog Devices ADM7172ACPZ-3.0-R7	300 mA, 175 mV dropout at 100 mA, 25 µA quiescent current, 10 µV_RMS noise, AEC-Q100 Grade 2	Higher noise performance but wider temp range (-40 °C to +105 °C); lacks 125 °C operation for engine bay placement	Prefer for cabin-mounted infotainment where ultra-low noise outweighs extended temperature capability.

Compared with XC6210B302MR-G, LDK130M10R provides automotive qualification and lower dropout; compared with ADM7172ACPZ-3.0-R7, it offers higher temperature rating at the expense of slightly higher noise-making it optimal for under-hood ADAS power domains.

Availability

LDK130M10R is available at Aetrix Electronics and suitable for automotive ADAS camera modules, telematics control units, and body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LDK130M10R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, and automotive-grade analog components.

The LDK130 series belongs to ST's automotive-qualified LDO portfolio, engineered specifically for point-of-load regulation in ADAS, infotainment, and body electronics where low noise, low IQ, and AEC-Q100 compliance are mandatory.

FAQ

What is the exact output voltage of LDK130M10R?

The LDK130M10R delivers a fixed 3.0 V output with ±2.0% tolerance at 25 °C and ±3.0% over -40 °C to +125 °C. This is confirmed in Table 4 of ST's DS9465 Rev 10 datasheet, where "M10R" suffix denotes the 3.0 V variant in SOT23-5L packaging.

Can LDK130M10R operate with a 1.9 V input and still regulate 3.0 V output?

No. The minimum input voltage required to sustain 3.0 V output is VIN ≥ VOUT + VDROP. With 100 mV typical dropout, LDK130M10R requires ≥3.1 V input to maintain regulation. At 1.9 V input, the device enters dropout and output collapses to ~1.8 V, as defined in absolute maximum ratings (VIN min = 1.9 V, not operational minimum).

Is an external bypass capacitor mandatory on the BYP pin?

No. For the fixed-output LDK130M10R, the BYP pin is optional: adding a 10 nF ceramic capacitor reduces output noise to 51 µV_RMS, but omitting it yields 130 µV_RMS (per Table 5). The pin must be left floating-no PCB routing or grounding-if unused.

Does LDK130M10R support ceramic output capacitors below 1 µF?

No. ST specifies 1–22 µF ceramic output capacitance for stability (Section 6, Figure 24–25). Using <1 µF violates the minimum C_OUT requirement and risks oscillation, as confirmed by stability region plots showing instability below 1 µF across all ESR values.

LDK130M10R Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 1V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.4V @ 300mA

Current - Output:: 300mA

Current - Quiescent (Iq):: 60 µA

Current - Supply (Max):: 120 µA

PSRR:: 55dB (120Hz ~ 10kHz)

Control Features:: Enable

Protection Features:: Over Current, Over Temperature

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-5

LDK130M10R FAQ

1.How can I place an order for LDK130M10R through Aetrix?

Please submit a Request for Quotation (RFQ) for LDK130M10R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LDK130M10R reliable?

The price and inventory of LDK130M10R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LDK130M10R is usually 5 days.

3.What payment methods are accepted for LDK130M10R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LDK130M10R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LDK130M10R?

LDK130M10R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LDK130M10R order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LDK130M10R?

For technical support, including LDK130M10R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LDK130M10R requirements.

6.How does Aetrix verify that LDK130M10R is sourced from the original manufacturer or authorized distributors?

All LDK130M10R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LDK130M10R meets industry standards.

7.What is the process for return or replacement of LDK130M10R?

All LDK130M10R units undergo pre-shipment inspection (PSI). If there is an issue with LDK130M10R, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LDK130M10R part is unused and in its original packaging.

Return procedure for LDK130M10R:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…