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NXP Semiconductors LD6806TD/13H,125
- Part No.:
- LD6806TD/13H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6806TD/13H,125.pdf
- Description:
- IC REG LINEAR 1.3V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,961
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Product details
Overview
LD6806TD/13H from NXP Semiconductors is a 1.3 V, 200 mA ultra-low-dropout linear regulator in SOT753 (TSOP5) package, featuring 80 mV typical dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable with 1.4 V logic threshold. It delivers stable low-noise power for RF and analog circuitry in space-constrained mobile devices.
For engineers reviewing the LD6806TD/13H datasheet, LD6806TD/13H pinout, LD6806TD/13H application, or LD6806TD/13H equivalent, key selection criteria include its high-ohmic (3-state) output during disable, thermal shutdown at 160 °C, ±0.5 % output voltage accuracy at +25 °C, and compatibility with 1 µF X7R ceramic output capacitors.
Technical Context
The LD6806TD/13H uses a monolithic silicon LDO architecture with internal reference generator, current limiter, and thermal protection circuitry. Its pass transistor operates in linear mode with minimal VIN–VOUT differential, enabling efficient regulation down to 2.3 V input while maintaining 1.3 V output.
It implements an active-HIGH enable input (EN) with defined VIH ≥ 1.4 V and VIL ≤ 0.4 V, and enters high-impedance state when disabled-critical for rail isolation in multi-rail systems. PSRR of −55 dB at 1 kHz supports noise-sensitive analog loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.3 V nominal; ±0.5 % tolerance at +25 °C ensures precise biasing for low-voltage logic and RF ICs |
| Dropout Voltage | 80 mV typical at 200 mA; enables operation with only 1.38 V input, maximizing battery runtime |
| Quiescent Current | 70–100 µA typical at no load; drops to 0.1–1.0 µA in shutdown, critical for standby power budgets |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); low enough for powering ADC references and RF synthesizers |
| PSRR | −55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters |
| Enable Threshold | VIH = 1.4 V min; compatible with 1.8 V and 3.3 V GPIO without level-shifting |
| Thermal Shutdown | 160 °C junction temperature with 20 K hysteresis; prevents permanent damage during overload |
Pinout & Package
SOT753 (TSOP5) plastic surface-mounted package: 5-lead gull-wing, body size 2.9 mm × 1.5 mm × 1.1 mm, pitch 0.95 mm, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply voltage | Accepts 2.3–5.5 V; requires local 1 µF ceramic decoupling for stability |
| 2 (GND) | Power ground reference | Low-impedance return path; must connect directly to PCB ground plane |
| 3 (EN) | Enable control input | Active-HIGH logic; drives regulator into high-Z output state when low |
| 4 (n.c.) | No-connect terminal | Internally unconnected; must remain floating or grounded per layout guidelines |
| 5 (OUT) | Regulated output | Delivers 1.3 V @ up to 200 mA; requires 1 µF X7R output capacitor (min 0.7 µF) |
Key Features
| Feature | Design Value |
|---|---|
| High-ohmic output on disable | Enables true rail isolation-no leakage path to downstream circuits when EN = LOW |
| Ultra-low noise regulation | 30 µVRMS output noise preserves signal integrity in RF front-ends and precision analog stages |
| Fast start-up time | 200 µs to reach 95 % of 1.3 V output enables rapid system wake-up from sleep states |
| Integrated ESD protection | 10 kV HBM rating eliminates need for external TVS diodes on IN/OUT/EN pins |
| Thermal watchdog | Auto-shutdown at 160 °C with 20 K hysteresis prevents latch-up and ensures safe recovery |
Applications
| Mobile Phone Baseband Power | Bluetooth Audio SoC Core Supply |
|---|---|
|
Use Scenario: Powering 1.3 V core rails of baseband processors in slim smartphone designs where board area is constrained. IC Role / Device Role / Timing Role: Primary low-noise LDO delivering clean, regulated 1.3 V at up to 200 mA with fast enable response. Use Value: Enables use of compact SOT753 footprint instead of larger alternatives, reducing PCB real estate by >40 % vs. SOIC-8 LDOs. |
Use Scenario: Supplying the digital core of Bluetooth 5.0 audio SoCs requiring tight voltage tolerance and low ripple. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO providing isolated 1.3 V domain synchronized to host processor enable signals. Use Value: 30 µVRMS noise and −55 dB PSRR prevent audible artifacts in Class-D amplifier outputs. |
| Wearable Sensor Hub Bias | IoT Edge Node RF Transceiver Supply |
|
Use Scenario: Powering MEMS sensor fusion hubs in wrist-worn wearables operating from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Efficient LDO maintaining 1.3 V output across 3.0–4.2 V battery range with <1 µA shutdown current. Use Value: 80 mV dropout extends usable battery life by >12 % compared to 150 mV-dropout alternatives at end-of-discharge. |
Use Scenario: Supplying sub-GHz RF transceivers (e.g., SX1276) requiring stable 1.3 V VDDIO with fast turn-on for duty-cycled operation. IC Role / Device Role / Timing Role: Enable-controlled LDO delivering 1.3 V with 200 µs startup to meet LoRaWAN Class A transmit timing constraints. Use Value: High-ohmic disable state prevents back-powering of RF section during sleep, eliminating standby current leakage paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-1302E/MB | 1.3 V fixed output, 250 mA, SOT23-5; dropout 600 mV @ 250 mA; no enable pin | Lacks enable control and high-Z disable; unsuitable for rail isolation or low-power sequencing | Select only if enable functionality is unnecessary and higher dropout is acceptable |
| Torex XC6210B132MR-G | 1.3 V fixed output, 150 mA, SOT23-5; dropout 120 mV @ 150 mA; enable pin with 0.7 V VIH | Lower current rating and higher dropout; VIH incompatible with 1.8 V GPIO without pull-up | Use only in cost-sensitive, non-sequenced 150 mA applications with 3.3 V enable sources |
Compared with MCP1703T-1302E/MB and XC6210B132MR-G, the LD6806TD/13H uniquely combines 200 mA capability, 80 mV dropout, active-HIGH enable with 1.4 V threshold, and high-ohmic disable-making it optimal for battery-powered, multi-rail portable systems requiring precise sequencing and rail isolation.
Availability
LD6806TD/13H is available at Aetrix Electronics and suitable for mobile handset power management, Bluetooth audio SoC supplies, wearable sensor hub biasing, and IoT edge node RF transceiver applications requiring stable component supply and long-term manufacturability.
Supply support for LD6806TD/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 LD6806 series was designed specifically for miniaturized portable electronics requiring ultra-low-noise, low-dropout regulation in wafer-level and leadless packages-targeting mobile phones, cordless handsets, and personal digital assistants.
FAQ
What is the maximum input voltage rating for LD6806TD/13H?
The LD6806TD/13H has an absolute maximum input voltage of +6.0 V for transient conditions up to 4 ms, with recommended continuous operation between 2.3 V and 5.5 V. Exceeding 6.0 V-even briefly-may cause irreversible damage to the internal pass transistor and reference circuitry. Always include input overvoltage clamping if system-level transients exceed this limit.
Does LD6806TD/13H require an external output capacitor, and what type is recommended?
Yes, LD6806TD/13H requires a minimum 0.7 µF external output capacitor for stability, with 1.0 µF X7R ceramic strongly recommended. The capacitor must have ESR between 5 mΩ and 500 mΩ and be rated for −40 °C to +125 °C. Tantalum or aluminum electrolytic capacitors are not recommended due to ESR and reliability concerns.
What happens to the output of LD6806TD/13H when the EN pin is driven LOW?
When EN is driven LOW (≤0.4 V), the LD6806TD/13H enters disable mode and places its OUT pin in a high-ohmic (3-state) condition-effectively disconnecting the output from the internal regulator. This prevents back-feeding and allows safe rail isolation in multi-supply systems without requiring external blocking diodes.
Is LD6806TD/13H compatible with lead-free reflow soldering processes?
Yes, LD6806TD/13H is RoHS-compliant and qualified for lead-free reflow soldering per J-STD-020C. Its SOT753 package supports peak reflow temperatures up to 260 °C. Ensure the PCB footprint matches the JEDEC SC-74A standard and that solder paste volume is controlled to avoid bridging on the 0.95 mm pitch leads.
How does the thermal shutdown feature operate in LD6806TD/13H?
The LD6806TD/13H incorporates a thermal watchdog that disables regulation when junction temperature reaches 160 °C, with 20 K hysteresis. Once tripped, the device remains off until junction temperature falls below 140 °C, then automatically resumes regulation-preventing thermal runaway while enabling self-recovery without external intervention.
LD6806TD/13H,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):
- 1.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.13V @ 200mA
- Current - Output:
- 200mA
- 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
LD6806TD/13H,125 FAQ
1.How can I place an order for LD6806TD/13H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806TD/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 LD6806TD/13H,125 reliable?
The price and inventory of LD6806TD/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 LD6806TD/13H,125 is usually 5 days.
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Once your LD6806TD/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 LD6806TD/13H,125?
For technical support, including LD6806TD/13H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806TD/13H,125 requirements.
6.How does Aetrix verify that LD6806TD/13H,125 is sourced from the original manufacturer or authorized distributors?
All LD6806TD/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 LD6806TD/13H,125 meets industry standards.
7.What is the process for return or replacement of LD6806TD/13H,125?
All LD6806TD/13H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806TD/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 LD6806TD/13H,125 part is unused and in its original packaging.
Return procedure for LD6806TD/13H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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