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NXP Semiconductors LD6836TD/30P,125
- Part No.:
- LD6836TD/30P,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6836TD/30P,125.pdf
- Description:
- IC REG LINEAR 3V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,632
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Product details
Overview
LD6836TD/30P,125 from NXP Semiconductors is a 3.0 V fixed-output, 300 mA ultra-low-dropout linear regulator in SOT753 package with auto-discharge (pull-down) functionality, 100 mV typical dropout at full load, 30 µV RMS output noise, and 55 dB PSRR at 1 kHz - deployed in portable power rails for mobile phone handsets and digital still cameras.
For engineers reviewing the LD6836TD/30P,125 datasheet, LD6836TD/30P,125 pinout, LD6836TD/30P,125 application, or LD6836TD/30P,125 equivalent, this page delivers verified electrical specs, SOT753 terminal mapping, real-world use cases in battery-powered devices, and validated alternative LDOs with functional and packaging distinctions.
Technical Context
The LD6836TD/30P,125 integrates a PMOS pass transistor enabling 100 mV typical dropout at 300 mA, active-high enable logic (VIH ≥1.1 V), and internal pull-down transistor (Rpd = 100 Ω) for rapid output discharge during shutdown. Its low-noise architecture achieves 30 µV RMS (10 Hz–100 kHz) and maintains ±0.5% output accuracy at 25 °C.
Thermal protection triggers at 160 °C with 20 K hysteresis; overcurrent limiting caps peak output at 350 mA and short-circuit current at 600 mA. Input voltage range is 2.3 V to 5.5 V, supporting single-cell Li-ion and multi-cell alkaline/battery systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±3% over −40 °C to +85 °C ambient - ensures stable core voltage for 3.0 V logic and analog circuitry. |
| Dropout Voltage | 100 mV typical at 300 mA - enables operation down to 3.1 V input, critical for battery-powered systems near end-of-life. |
| Quiescent Current | 0.1 µA typical in shutdown (VEN ≤ 0.4 V) - minimizes battery drain in standby mode of portable devices. |
| PSRR | 55 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Output Noise | 30 µV RMS (10 Hz–100 kHz) - supports noise-sensitive analog blocks like ADCs and RF receivers. |
| Enable Threshold | VIH = 1.1 V min, VIL = 0.4 V max - compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
| Thermal Resistance | Rth(j-a) = 125 K/W - requires minimal PCB copper area for thermal management in compact layouts. |
Pinout & Package
SOT753 plastic surface-mounted package (5-lead, SC-74A compatible), 3.0 mm × 1.7 mm × 1.1 mm body, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator input voltage | Accepts 2.3 V–5.5 V supply; requires ≥0.7 µF input capacitor for stability. |
| 2 (GND) | Supply ground | Common reference for all internal circuits; must connect to low-impedance ground plane. |
| 3 (EN) | Enable input (active HIGH) | Drives regulator ON when ≥1.1 V applied; pulls output to GND via internal transistor when LOW. |
| 4 (n.c.) | No connection | Internally unconnected; must remain floating - no external tie or trace routing. |
| 5 (OUT) | Regulator output voltage | Delivers regulated 3.0 V; requires ≥0.7 µF ceramic output capacitor with ESR 5–500 mΩ. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Integrated 100 Ω pull-down transistor discharges output to <5% VO(nom) in 300 µs - prevents floating voltage on powered-down rails. |
| Low-noise regulation | 30 µV RMS output noise enables clean power for precision analog sensors and RF front-ends. |
| High PSRR at low frequency | 55 dB rejection at 1 kHz mitigates ripple from buck converter switching frequencies and their harmonics. |
| Robust protection suite | Over-temperature shutdown (160 °C), current limiting (350 mA peak), and 10 kV HBM ESD rating ensure field reliability. |
| Miniaturized footprint | SOT753 package matches SOT23-5 layout - allows drop-in replacement in space-constrained mobile PCBs. |
Applications
| Smartphone Baseband Power | Digital Still Camera Sensor Rail |
|---|---|
Use Scenario: Powers baseband processor I/O and memory interface in dual-SIM smartphones operating from single-cell Li-ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Ultra-low-dropout LDO delivering stable 3.0 V with fast enable/disable timing for dynamic power gating. Use Value: 100 mV dropout extends usable battery life by >15 minutes at end-of-discharge; auto-discharge prevents latch-up during sleep/wake transitions. | Use Scenario: Supplies image sensor analog front-end and ADC in compact digital still cameras with tight thermal budgets. IC Role / Device Role / Timing Role: Low-noise, high-PSRR regulator isolating sensitive analog circuitry from noisy digital subsystems. Use Value: 30 µV RMS noise and 55 dB PSRR reduce image sensor noise floor by up to 2 LSB, improving SNR in low-light capture. |
| Portable Media Player Audio Codec | Personal Navigation Device GPS Front-End |
Use Scenario: Provides clean 3.0 V bias to stereo audio codec in flash-based MP3 players with 1.8 V system logic. IC Role / Device Role / Timing Role: Fixed-output LDO with fast 150 µs startup enabling instant audio playback on button press. Use Value: 0.1 µA shutdown current preserves battery charge during weeks of standby; SOT753 footprint fits narrow PCB edge zones. | Use Scenario: Powers GPS RF receiver LNA and mixer stages in handheld navigation units using coin-cell or rechargeable backup. IC Role / Device Role / Timing Role: High-rejection LDO rejecting switching noise from display backlight drivers and MCU clock domains. Use Value: 55 dB PSRR at 1 kHz eliminates spurious tones in GPS IF path, improving time-to-first-fix by up to 20% in urban canyons. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS73630DBVT | 300 mA, 3.0 V fixed, 75 mV dropout (typ), 35 µV RMS noise, SOT23-5 package, no auto-discharge | Lacks pull-down transistor - requires external discharge circuit for rail sequencing | Select when lowest dropout is prioritized and auto-discharge is handled externally. |
| MCP1703T-3002E/MB | 250 mA, 3.0 V fixed, 600 mV dropout (max), 40 µV RMS noise, SOT89-3 package, no enable pin | Higher dropout, no EN control, larger thermal footprint - unsuitable for battery-critical or sequenced systems | Select only for cost-sensitive, non-battery, always-on applications where size and sequencing are secondary. |
Compared with TPS73630DBVT and MCP1703T-3002E/MB, LD6836TD/30P,125 uniquely combines 100 mV dropout, integrated auto-discharge, and 30 µV noise in SOT753 - making it optimal for portable devices requiring fast rail shutdown and extended battery runtime without added BOM components.
Availability
LD6836TD/30P,125 is available at Aetrix Electronics and suitable for smartphone baseband power, digital camera sensor rails, and portable media player audio codecs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for LD6836TD/30P,125 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.
The LD6836 series was designed specifically for ultra-low-power, miniaturized portable electronics - delivering high PSRR, low noise, and auto-discharge functionality in wafer-level and SOT packages for space- and battery-constrained applications.
FAQ
What is the maximum input voltage rating for LD6836TD/30P,125?
The absolute maximum input voltage for LD6836TD/30P,125 is +6.0 V for transient conditions up to 4 ms, per the datasheet limiting values table. For continuous operation, the recommended input range is 2.3 V to 5.5 V. Exceeding 6.0 V risks permanent damage to the internal PMOS pass device and bandgap reference circuitry. Always include input overvoltage protection if the source may exceed this limit.
Does LD6836TD/30P,125 require an external pull-down resistor for auto-discharge?
No, LD6836TD/30P,125 does not require an external pull-down resistor. It integrates an internal 100 Ω pull-down transistor activated automatically when the EN pin is driven LOW, discharging the output to <5% of 3.0 V within 300 µs. This eliminates the need for discrete discharge components and simplifies PCB layout in battery-powered systems.
What is the minimum output capacitance required for stable operation of LD6836TD/30P,125?
The minimum external output capacitance for stable operation of LD6836TD/30P,125 is 0.7 µF, with X7R dielectric recommended to meet the full −40 °C to +125 °C temperature specification. Capacitor tolerance must be ±30% or better. Equivalent Series Resistance (ESR) must be between 5 mΩ and 500 mΩ. Using less than 0.7 µF risks oscillation and poor transient response.
How does the enable threshold voltage of LD6836TD/30P,125 compare with 1.8 V GPIOs?
The LD6836TD/30P,125 has a VIH (HIGH-level input voltage) minimum of 1.1 V and VIL (LOW-level input voltage) maximum of 0.4 V, making it fully compatible with 1.8 V GPIOs. A 1.8 V logic HIGH exceeds the 1.1 V VIH requirement by 0.7 V margin, ensuring robust enable signaling even with PCB trace losses or voltage droop. No level shifter is needed.
Is LD6836TD/30P,125 RoHS-compliant and halogen-free?
Yes, LD6836TD/30P,125 is RoHS-compliant and free of halogen and antimony, meeting NXP's "dark green" compliance standard. The SOT753 package uses lead-free terminations and complies with EU Directive 2011/65/EU and JEDEC J-STD-609A Class 1 moisture sensitivity level. Full compliance documentation is available upon request from NXP.
LD6836TD/30P,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- 250 µA
- PSRR:
- 55dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
LD6836TD/30P,125 FAQ
1.How can I place an order for LD6836TD/30P,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836TD/30P,125 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 LD6836TD/30P,125 reliable?
The price and inventory of LD6836TD/30P,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6836TD/30P,125 is usually 5 days.
3.What payment methods are accepted for LD6836TD/30P,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836TD/30P,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836TD/30P,125?
LD6836TD/30P,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836TD/30P,125 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 LD6836TD/30P,125?
For technical support, including LD6836TD/30P,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836TD/30P,125 requirements.
6.How does Aetrix verify that LD6836TD/30P,125 is sourced from the original manufacturer or authorized distributors?
All LD6836TD/30P,125 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 LD6836TD/30P,125 meets industry standards.
7.What is the process for return or replacement of LD6836TD/30P,125?
All LD6836TD/30P,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836TD/30P,125, 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 LD6836TD/30P,125 part is unused and in its original packaging.
Return procedure for LD6836TD/30P,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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