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NXP Semiconductors LD6836TD/13H,125
- Part No.:
- LD6836TD/13H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6836TD/13H,125.pdf
- Description:
- IC REG LINEAR 1.3V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:33,000
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Product details
Overview
LD6836TD/13H from NXP Semiconductors is a 1.3 V fixed-output, 300 mA ultra-low-dropout linear regulator in SOT753 package, featuring 100 mV typical dropout at full load, 55 dB PSRR at 1 kHz, and 30 µVRMS output noise (10 Hz–100 kHz). It delivers stable low-noise power for voltage-sensitive analog circuitry in space-constrained portable electronics.
For engineers reviewing the LD6836TD/13H datasheet, LD6836TD/13H pinout, LD6836TD/13H application, or LD6836TD/13H equivalent, this page provides verified electrical specifications, SOT753 pin mapping, high-ohmic disable behavior, thermal derating guidance, and validated alternative LDOs for mobile interface supply design.
Technical Context
The LD6836TD/13H implements a PMOS pass transistor architecture enabling ultra-low dropout (100 mV typ. @ 300 mA) and fast 150 µs startup time. Its internal reference and error amplifier maintain ±0.5% output accuracy over temperature (−40 °C to +85 °C) and load (1–300 mA).
It integrates over-temperature shutdown (160 °C trigger, 20 K hysteresis), output current limiting (600 mA short-circuit), and 10 kV HBM ESD protection. The active-HIGH enable pin (VIH ≥ 1.1 V) places the output in high-ohmic (3-state) mode when disabled - no auto-discharge function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.3 V ±3% over −40 °C to +85 °C; enables direct powering of 1.3 V I/O domains without external feedback. |
| Dropout Voltage | 100 mV typical at 300 mA; allows operation with VIN as low as 1.4 V, maximizing battery runtime in single-cell Li-ion or Li-poly systems. |
| PSRR | 55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding noisy system rails. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); meets low-noise requirements for RF front-ends, ADC references, and precision analog sensors. |
| Quiescent Current | 70–100 µA during regulation; <1 µA in shutdown (VEN ≤ 0.4 V); critical for always-on subsystems in battery-powered devices. |
| Enable Threshold | VIL ≤ 0.4 V / VIH ≥ 1.1 V; compatible with 1.8 V and 3.3 V GPIO logic without level-shifting. |
| Thermal Resistance | Rth(j-a) = 125 K/W (SOT753 on 2-layer PCB); supports 300 mA continuous output up to +85 °C ambient with minimal copper area. |
Pinout & Package
SOT753 plastic surface-mounted package (5-lead, SC-74A compatible), dimensions 3.0 mm × 1.7 mm × 1.3 mm, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Regulator input voltage | Accepts 2.3 V to 5.5 V; requires ≥0.7 µF ceramic input capacitor for stability and transient response. |
| 2 - GND | Supply ground | Primary return path for load current and bias; must connect directly to low-impedance ground plane. |
| 3 - EN | Enable input (active HIGH) | Drives regulator ON when ≥1.1 V; pulls output to high-impedance state when ≤0.4 V - no pull-down transistor. |
| 4 - n.c. | No connection | Internally unconnected; must remain floating - no PCB trace or solder mask opening required. |
| 5 - OUT | Regulator output voltage | Delivers regulated 1.3 V; requires ≥0.7 µF X7R ceramic output capacitor (ESR 5–500 mΩ) for loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 100 mV typical @ 300 mA enables use with weak or deeply discharged batteries while maintaining regulation. |
| Low-noise output | 30 µVRMS noise floor ensures clean power for RF ICs, audio codecs, and high-resolution ADCs without added filtering. |
| High PSRR | 55 dB rejection at 1 kHz reduces ripple coupling from noisy switchers, simplifying power domain partitioning. |
| Fast startup | 150 µs turn-on time supports dynamic power sequencing in multi-rail systems with tight timing constraints. |
| Robust protection | Integrated thermal shutdown (160 °C), current limiting (600 mA), and 10 kV HBM ESD protect against real-world stress events. |
Applications
| Smartphone Baseband Power | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Supplying 1.3 V core voltage to baseband processor I/O banks in LTE/5G handsets with aggressive power cycling. IC Role / Device Role / Timing Role: Primary low-noise LDO delivering stable rail during rapid enable/disable transitions triggered by modem sleep states. Use Value: High-ohmic disable prevents back-powering of upstream supplies; 150 µs startup aligns with 3GPP-defined wake-up latency budgets. |
Use Scenario: Providing clean 1.3 V bias to CMOS image sensor analog front-end (AFE) in compact digital still cameras. IC Role / Device Role / Timing Role: Low-noise post-regulator decoupling noisy DC-DC outputs before sensitive pixel readout circuitry. Use Value: 30 µVRMS noise and 55 dB PSRR minimize fixed-pattern noise and improve SNR in low-light imaging. |
| Portable Media Player Audio Codec | Bluetooth LE SoC I/O Domain |
Use Scenario: Powering 1.3 V analog section of stereo audio codec in battery-operated media players with variable playback loads. IC Role / Device Role / Timing Role: Precision LDO supplying reference and bias currents to DAC/ADC stages independent of battery voltage sag. Use Value: ±0.5% output accuracy and <100 mV dropout preserve dynamic range across 3.0–4.2 V Li-ion discharge curve. |
Use Scenario: Regulating 1.3 V I/O supply for Bluetooth 5.x SoCs in wearables where space and quiescent current are critical. IC Role / Device Role / Timing Role: Always-on LDO enabled by host MCU GPIO, supporting low-power advertising and connection intervals. Use Value: 0.1 µA shutdown current extends shelf life; SOT753 footprint fits tight 2.5 mm × 2.5 mm board areas. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0513PDBVR | 1.3 V fixed, 200 mA, 170 mV dropout (typ.), 25 µVRMS noise, SOT-23-5 | Lower max current and higher dropout limit usable headroom in 1.5 V input systems | Select when lower quiescent current (25 µA) and smaller solution size outweigh 300 mA capability. |
| MCP1700T-1302E/TT | 1.3 V fixed, 250 mA, 600 mV dropout (typ.), 30 µVRMS noise, SOT-23-3 | Higher dropout and no enable pin require redesign of input rail and control logic | Choose only if board space is extremely constrained and enable functionality is unnecessary. |
Compared with LD6836TD/13H, the TPS7A0513PDBVR offers lower IQ but reduced current drive, while the MCP1700T-1302E/TT sacrifices enable control and dropout performance for minimal footprint - neither is pin-compatible, requiring layout revision.
Availability
LD6836TD/13H is available at Aetrix Electronics and suitable for smartphone baseband power, digital camera sensor bias, portable media player audio codec, and Bluetooth LE SoC I/O domain applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for LD6836TD/13H 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-noise, high-accuracy power regulation in miniaturized portable electronics - emphasizing dropout minimization, PSRR, and robustness in thermally constrained SMT layouts.
FAQ
What is the maximum input voltage rating for LD6836TD/13H?
The absolute maximum input voltage for LD6836TD/13H is +6.0 V for 4 ms transients, with recommended operating range from 2.3 V to 5.5 V. Exceeding 6.0 V risks permanent damage; sustained operation above 5.5 V violates specification limits and may degrade long-term reliability. Always include transient suppression if input rails are exposed to surge events.
Does LD6836TD/13H support automatic output discharge when disabled?
No, LD6836TD/13H does not provide auto-discharge. As a "H" variant, it enters a high-ohmic (3-state) output condition when EN is low - the OUT pin floats. To actively discharge the output capacitor, an external pull-down resistor or dedicated discharge FET is required. This differs from "P" variants like LD6836TD/13P which integrate a 100 Ω pull-down transistor.
What external capacitors are required for stable operation of LD6836TD/13H?
LD6836TD/13H requires a minimum 0.7 µF X7R ceramic capacitor on both IN and OUT pins, with ESR between 5 mΩ and 500 mΩ. A 1.0 µF capacitor is recommended for optimal transient response and PSRR. Avoid NP0/C0G for output capacitance due to insufficient capacitance density; ensure capacitor tolerance is ±30% or better across −40 °C to +125 °C.
How does the thermal performance of LD6836TD/13H compare between SOT753 and WLCSP packages?
LD6836TD/13H in SOT753 has Rth(j-a) = 125 K/W (2-layer PCB), while WLCSP variants (e.g., LD6836CX4/13H) specify 130 K/W. The 5 K/W difference reflects SOT753's larger copper pad area and leadframe thermal path. For 300 mA continuous load at +85 °C ambient, SOT753 allows ~5 °C lower junction temperature - critical in sealed enclosures with limited airflow.
Is LD6836TD/13H compatible with lead-free reflow soldering processes?
Yes, LD6836TD/13H is qualified for lead-free reflow per J-STD-020C. Its SOT753 package falls under the "<2.5 mm thickness, <350 mm³ volume" category, requiring a peak reflow temperature of 235 °C. Standard SnAgCu profiles with preheat (150–200 °C), soak (183–200 °C), and ramp-to-peak (≤3 °C/s) are suitable. Moisture sensitivity level is MSL3 - bake before assembly if exposed >168 hours at >30 °C/60% RH.
LD6836TD/13H,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.3V
- 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/13H,125 FAQ
1.How can I place an order for LD6836TD/13H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836TD/13H,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/13H,125 reliable?
The price and inventory of LD6836TD/13H,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/13H,125 is usually 5 days.
3.What payment methods are accepted for LD6836TD/13H,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836TD/13H,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836TD/13H,125?
LD6836TD/13H,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836TD/13H,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/13H,125?
For technical support, including LD6836TD/13H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836TD/13H,125 requirements.
6.How does Aetrix verify that LD6836TD/13H,125 is sourced from the original manufacturer or authorized distributors?
All LD6836TD/13H,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/13H,125 meets industry standards.
7.What is the process for return or replacement of LD6836TD/13H,125?
All LD6836TD/13H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836TD/13H,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/13H,125 part is unused and in its original packaging.
Return procedure for LD6836TD/13H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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