My Inquiry
My Account
NXP Semiconductors LD6836TD/12P,125
- Part No.:
- LD6836TD/12P,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6836TD/12P,125.pdf
- Description:
- IC REG LINEAR 1.2V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,054
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LD6836TD/12P,125 from NXP Semiconductors is a 1.2 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 baseband ICs and camera sensor interfaces.
For engineers reviewing the LD6836TD/12P,125 datasheet, LD6836TD/12P,125 pinout, LD6836TD/12P,125 application, or LD6836TD/12P,125 equivalent, this page delivers verified electrical specs, SOT753 terminal mapping, real-world use cases in battery-powered devices, and validated alternative LDOs with documented functional trade-offs.
Technical Context
The LD6836TD/12P,125 integrates a PMOS pass transistor enabling 100 mV dropout at 300 mA, active-high enable logic with 1.1 V VIH threshold, and internal pull-down transistor (Rpd = 100 Ω) for rapid output discharge during shutdown. Its low-noise bandgap reference and feedback loop deliver ±0.5% output accuracy at 25 °C.
Thermal design relies on Rth(j-a) = 125 K/W (JEDEC 2-layer PCB), supported by over-temperature shutdown at 160 °C with 20 K hysteresis and current limiting at 600 mA short-circuit. Input voltage range is 2.3 V to 5.5 V, compatible with single-cell Li-ion and dual-cell alkaline supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.2 V ±3% over −40 °C to +85 °C - powers core logic of ARM Cortex-M microcontrollers and LPDDR memory I/O. |
| Dropout voltage | 100 mV typical at 300 mA - enables regulation from 1.3 V input, critical for extending battery runtime in deep-discharge states. |
| Quiescent current | 0.1 µA typical in shutdown mode - minimizes leakage in always-on subsystems like RTC or wake-up controllers. |
| PSRR | 55 dB at 1 kHz - suppresses switching noise from DC-DC converters feeding adjacent analog circuits. |
| Output noise | 30 µV RMS (10 Hz–100 kHz) - meets low-noise requirements for RF transceiver LDO rails and high-resolution ADC references. |
| Enable threshold | VIH = 1.1 V min, VIL = 0.4 V max - ensures reliable activation from 1.8 V GPIOs without level-shifting. |
| Start-up time | 150 µs to 95% VOUT - supports fast wake-up sequences in power-gated SoC domains. |
Pinout & Package
SOT753 plastic surface-mount package (3.1 mm × 2.7 mm × 1.1 mm), RoHS-compliant, lead-free, compatible with standard SC-74A footprints and reflow soldering profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Regulator input voltage | Accepts 2.3 V–5.5 V supply; requires ≥0.7 µF ceramic input capacitor for stability and transient response. |
| 2 - GND | Supply ground | Common return path for input, output, and enable; must connect to low-impedance ground plane to minimize noise coupling. |
| 3 - EN | Device enable input (active HIGH) | Drives internal bias circuitry; 1.1 V minimum to activate; pulls output to 1.2 V when asserted. |
| 4 - n.c. | Not connected | No internal connection; must remain unconnected and unbonded on PCB to avoid parasitic coupling or ESD paths. |
| 5 - OUT | Regulator output voltage | Delivers regulated 1.2 V; includes integrated 100 Ω pull-down transistor activated during EN = LOW for auto-discharge. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Integrated 100 Ω pull-down transistor discharges output to <5% VOUT within 300 µs after EN deactivation - prevents floating states in multi-rail systems. |
| Low-noise regulation | 30 µV RMS output noise enables clean power for RF front-ends and precision analog sensors without external filtering. |
| High PSRR at audio frequencies | 55 dB rejection at 1 kHz suppresses ripple from buck converters operating near audio bands, reducing audible noise in speaker amplifiers. |
| Robust thermal protection | 160 °C junction shutdown with 20 K hysteresis prevents latch-up during sustained overload or poor heatsinking in compact enclosures. |
| ESD resilience | 10 kV HBM rating allows direct handling and board-level integration without additional protection components. |
Applications
| Smartphone Baseband Power | Digital Camera Sensor Rail |
|---|---|
Use Scenario: Powers ARM-based application processor cores requiring stable 1.2 V at up to 300 mA during burst-mode video capture. IC Role / Device Role / Timing Role: Primary LDO for CPU/GPU core domain, activated synchronously with SoC power management unit via EN signal. Use Value: 100 mV dropout extends usable battery range by 80–120 mV below conventional LDOs, directly increasing talk time. | Use Scenario: Supplies image sensor analog front-end (AFE) and column ADC in compact digital still cameras. IC Role / Device Role / Timing Role: Low-noise post-regulator downstream of a switching DC-DC converter, decoupling high-frequency switching artifacts. Use Value: 30 µV RMS noise prevents fixed-pattern noise in captured images, eliminating need for additional LC filtering. |
| Portable Media Player Audio Codec | Wearable Health Monitor MCU Core |
Use Scenario: Provides clean 1.2 V bias to stereo audio codec DSP and DAC sections in battery-operated media players. IC Role / Device Role / Timing Role: Dedicated LDO for audio signal chain, enabled only during playback to minimize system quiescent current. Use Value: 55 dB PSRR at 1 kHz eliminates audible switching tones from shared power rails, meeting consumer audio SNR requirements. | Use Scenario: Powers ultra-low-power MCU core (e.g., Nordic nRF52) in continuous-sensing wearable devices. IC Role / Device Role / Timing Role: Always-on LDO with 0.1 µA shutdown current, activated by motion-detection interrupt to wake main processor. Use Value: Auto-discharge ensures rapid rail collapse during sleep, preventing leakage through peripheral I/O pins and extending battery life >6 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1202E/TT | 250 mA output, 170 mV dropout at 250 mA, no auto-discharge, 1.2 V ±2% accuracy | Lacks pull-down transistor; requires external discharge circuit for same shutdown behavior | Select when lower cost and simpler BOM outweigh need for integrated auto-discharge. |
| Torex XC6206P122MR-G | 300 mA output, 150 mV dropout at 300 mA, no enable pin, fixed 1.2 V, no auto-discharge | Always-on operation only; incompatible with sequenced power architectures requiring EN control | Select for space-constrained designs where enable functionality is unnecessary and footprint is priority. |
Compared with MCP1700T-1202E/TT and XC6206P122MR-G, LD6836TD/12P,125 uniquely combines 300 mA capability, sub-150 mV dropout, integrated auto-discharge, and active-HIGH enable - making it optimal for battery-powered systems demanding fast, controlled power sequencing and minimal leakage.
Availability
LD6836TD/12P,125 is available at Aetrix Electronics and suitable for smartphone baseband power, digital camera sensor rails, portable media player audio codecs, and wearable health monitor MCU cores requiring stable component supply across production lifecycles.
Supply support for LD6836TD/12P,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 specializing in secure connectivity solutions for automotive, industrial, and consumer electronics, with leadership in power management and RF technologies.
The LD6836 series was designed specifically for ultra-low-noise, high-efficiency power delivery in space-constrained portable devices - emphasizing miniaturization (WLCSP and SOT753), fast transient response, and robust protection features for battery-powered applications.
FAQ
What is the maximum input voltage rating for LD6836TD/12P,125?
The LD6836TD/12P,125 has an absolute maximum input voltage of +6.0 V for transient conditions up to 4 ms, with recommended operating range from 2.3 V to 5.5 V. Exceeding 6.0 V risks permanent damage to the internal PMOS pass device and bandgap reference circuitry. For long-term reliability, maintain VIN ≤5.5 V under all steady-state conditions.
Does LD6836TD/12P,125 require an external output capacitor, and what value is recommended?
Yes, LD6836TD/12P,125 requires an external output capacitor for stability. The datasheet specifies a minimum of 0.7 µF with ±30% tolerance and ESR between 5 mΩ and 500 mΩ. A 1.0 µF X7R ceramic capacitor is recommended to ensure stable operation across −40 °C to +85 °C and meet the 150 µs start-up time specification.
How does the auto-discharge function operate in LD6836TD/12P,125?
When the EN pin is driven LOW, LD6836TD/12P,125 activates an internal 100 Ω pull-down transistor between OUT and GND, discharging the output capacitance to <5% of 1.2 V within 300 µs. This prevents floating voltages that could cause unintended logic states in downstream circuits during power-down sequences.
What is the thermal resistance (Rth(j-a)) of LD6836TD/12P,125 under standard JEDEC 2-layer PCB conditions?
The LD6836TD/12P,125 has a typical junction-to-ambient thermal resistance of 125 K/W when mounted on a standard 2-layer PCB per JEDEC JESD51-7. This value assumes solid copper connections on both top and bottom layers with adequate thermal vias - exceeding this Rth(j-a) in layout increases risk of thermal shutdown above 160 °C junction temperature.
Is LD6836TD/12P,125 compatible with lead-free reflow soldering processes?
Yes, LD6836TD/12P,125 is qualified for lead-free reflow soldering per J-STD-020C. Its package thickness (1.1 mm) and volume place it in the "<2.5 mm thickness, <350 mm³" category, requiring a peak reflow temperature of 235 °C. The device meets RoHS and halogen-free compliance standards without derating.
LD6836TD/12P,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):
- 1.2V
- 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/12P,125 FAQ
1.How can I place an order for LD6836TD/12P,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836TD/12P,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/12P,125 reliable?
The price and inventory of LD6836TD/12P,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/12P,125 is usually 5 days.
3.What payment methods are accepted for LD6836TD/12P,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836TD/12P,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836TD/12P,125?
LD6836TD/12P,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836TD/12P,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/12P,125?
For technical support, including LD6836TD/12P,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836TD/12P,125 requirements.
6.How does Aetrix verify that LD6836TD/12P,125 is sourced from the original manufacturer or authorized distributors?
All LD6836TD/12P,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/12P,125 meets industry standards.
7.What is the process for return or replacement of LD6836TD/12P,125?
All LD6836TD/12P,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836TD/12P,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/12P,125 part is unused and in its original packaging.
Return procedure for LD6836TD/12P,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LD6836TD/12P,125 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
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.
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…
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…
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…
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 …
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…
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…
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…
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…
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…
