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NXP Semiconductors LD6806TD/33H,125
- Part No.:
- LD6806TD/33H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6806TD/33H,125.pdf
- Description:
- IC REG LINEAR 3.3V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,376
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Product details
Overview
LD6806TD/33H,125 from NXP Semiconductors is a 3.3 V, 200 mA ultra-low-dropout linear regulator in SOT753 (TSOP5) package with 60 mV dropout at 200 mA, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable pin. It delivers high-ohmic (3-state) output when disabled and supports mobile phone handset power rails requiring miniaturized, low-noise, stable 3.3 V supply.
For engineers reviewing the LD6806TD/33H,125 datasheet, LD6806TD/33H,125 pinout, LD6806TD/33H,125 application, or LD6806TD/33H,125 equivalent, key selection criteria include its 3.3 V fixed output, thermal shutdown at 160 °C, 55 dB PSRR at 1 kHz, 200 µs startup time, and compatibility with 1 µF X7R ceramic output capacitors for stable operation in space-constrained portable electronics.
Technical Context
The LD6806TD/33H,125 uses a monolithic silicon LDO architecture with internal voltage reference, error amplifier, and PMOS pass transistor. Its high-ohmic disable state eliminates backfeed and supports rail isolation in multi-rail systems.
It integrates thermal protection (160 °C shutdown with 20 K hysteresis), overcurrent limiting, and 10 kV HBM ESD protection. The device operates across −40 °C to +85 °C ambient and maintains regulation with input voltages from 2.3 V to 5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2 % over −30 °C to +85 °C; enables direct replacement of standard 3.3 V logic rails without external feedback. |
| Dropout Voltage | 80 mV typical at 200 mA (SOT753 variant); allows operation with VIN as low as 3.38 V while sustaining full load. |
| PSRR | −55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); suitable for powering noise-sensitive analog circuitry like ADC references or RF front-ends. |
| Quiescent Current | 70–100 µA typical under load; ensures minimal battery drain in always-on subsystems. |
| Enable Threshold | VIH = 1.4 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 (SOT753); requires minimal copper area for thermal management in handheld PCBs. |
Pinout & Package
SOT753 (TSOP5) plastic surface-mounted package: 5-lead gull-wing, 2.7 mm × 3.1 mm × 1.1 mm body, 0.95 mm lead pitch, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Supply voltage input | Accepts 2.3 V–5.5 V input; must be decoupled with ≥1 µF ceramic capacitor near pin. |
| 2 GND | Supply ground | Primary return path; requires low-inductance connection to system ground plane. |
| 3 EN | Device enable input (active HIGH) | Drives regulator ON when ≥1.4 V applied; pulls output to high-impedance state when <0.4 V. |
| 4 n.c. | Not connected | No internal connection; may be left unconnected or tied to GND for mechanical stability. |
| 5 OUT | Regulator output voltage | Delivers regulated 3.3 V; requires ≥1 µF X7R ceramic capacitor with 5–500 mΩ ESR for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 80 mV typical at 200 mA enables use in battery-powered systems down to 3.38 V input. |
| Low-noise regulation | 30 µVRMS output noise supports precision analog and RF signal chains without additional filtering. |
| Fast startup | 200 µs turn-on time allows rapid power sequencing in wake-from-sleep applications. |
| High-ohmic disable | 3-state output prevents backfeeding and enables clean power domain isolation during system standby. |
| Integrated protection | Thermal shutdown (160 °C), current limiting, and 10 kV HBM ESD ensure robustness in portable environments. |
Applications
| Mobile Phone Baseband Power | Media Player Audio Codec Supply |
|---|---|
Use Scenario: Powers baseband processor I/O and memory interface rails in slim smartphone designs where board space is constrained. IC Role / Device Role / Timing Role: Primary 3.3 V LDO delivering clean, stable voltage to digital logic blocks with fast transient response. Use Value: Enables use of compact 1 µF X7R output capacitor and eliminates need for external reverse-blocking diode due to high-ohmic disable. | Use Scenario: Supplies low-noise 3.3 V bias to stereo audio DAC/ADC in portable media players. IC Role / Device Role / Timing Role: Low-noise voltage source isolating sensitive analog circuitry from noisy digital supply domains. Use Value: 30 µVRMS noise and 55 dB PSRR prevent audible artifacts and maintain SNR >95 dB in audio playback. |
| Wireless Headset RF Front-End | Wearable Sensor Hub Core Supply |
Use Scenario: Provides regulated 3.3 V to Bluetooth transceiver RF sections in compact earbud PCBs. IC Role / Device Role / Timing Role: Dedicated LDO for RF analog blocks requiring minimal supply-induced phase noise. Use Value: Ultra-low dropout preserves battery runtime during deep discharge; high-ohmic disable prevents RF leakage during sleep mode. | Use Scenario: Powers ARM Cortex-M0+ sensor fusion MCU core in fitness trackers with aggressive power cycling. IC Role / Device Role / Timing Role: Always-on LDO enabling sub-100 µA system standby current via precise enable control. Use Value: 1.0 µA shutdown quiescent current extends battery life; 200 µs startup supports responsive wake-up from motion-triggered interrupts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3302E/MB | 300 mA rated, 170 mV dropout at 250 mA, SOT-23-5 package, no enable pin. | Lacks active-HIGH enable and high-ohmic disable; requires external logic for rail isolation. | Select when higher output current is needed and enable control is handled externally. |
| Torex XC6206P332MR-G | 200 mA rated, 150 mV dropout at 100 mA, SOT-25 package, active-HIGH enable, but no thermal shutdown. | Missing thermal protection limits use in thermally dense layouts without derating. | Select for cost-sensitive designs where thermal margin is guaranteed by layout and ambient conditions. |
Compared with MCP1700T-3302E/MB and XC6206P332MR-G, the LD6806TD/33H,125 uniquely combines 3.3 V fixed output, 80 mV dropout, integrated thermal shutdown, and true 3-state disable in a 5-lead SOT753 footprint-enabling compact, robust, and sequenced power delivery in portable electronics.
Availability
LD6806TD/33H,125 is available at Aetrix Electronics and suitable for mobile phone handsets, cordless telephones, and personal digital devices requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for LD6806TD/33H,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 applications.
The LD6806 series belongs to NXP's ultra-low-noise, miniaturized LDO portfolio designed specifically for space-constrained portable electronics demanding high efficiency, rail isolation, and robust thermal behavior.
FAQ
What is the nominal output voltage and tolerance of the LD6806TD/33H,125?
The LD6806TD/33H,125 provides a fixed 3.3 V output with ±2 % tolerance over −30 °C to +85 °C ambient temperature. This specification is guaranteed per Table 10 in the datasheet and applies under recommended operating conditions with 1 mA to 200 mA load current. The device does not require external resistors to set output voltage, simplifying design and reducing BOM count.
Does the LD6806TD/33H,125 support high-ohmic (3-state) output when disabled?
Yes, the LD6806TD/33H,125 features a high-ohmic output state when the EN pin is driven LOW (<0.4 V). This 3-state behavior prevents backfeeding into the output rail and enables clean power domain isolation-critical in multi-rail portable systems. The "H" suffix in the part number explicitly denotes this high-ohmic disable functionality.
What is the minimum recommended output capacitor for stable operation of the LD6806TD/33H,125?
The LD6806TD/33H,125 requires a minimum 1.0 µF X7R ceramic capacitor on the OUT pin for guaranteed stability, as specified in Table 11 and Section 10.1. The capacitor must have an ESR between 5 mΩ and 500 mΩ. Using a 1 µF, 10 V, X7R, 0603 case size capacitor meets all electrical and layout requirements for handheld applications.
What is the thermal shutdown threshold and hysteresis of the LD6806TD/33H,125?
The LD6806TD/33H,125 triggers thermal shutdown at a junction temperature of 160 °C (Tsd) and remains off until the junction cools by 20 K (Tsd(hys) = 20 °C), ensuring reliable recovery without oscillation. This protection is fully integrated and requires no external components, making it suitable for thermally dense PCB layouts in sealed enclosures.
Can the LD6806TD/33H,125 operate with an input voltage below 3.3 V?
No-the LD6806TD/33H,125 requires a minimum input voltage of 2.3 V, but to maintain regulation at its 3.3 V output, VIN must exceed VOUT + Vdo. With a typical dropout of 80 mV at 200 mA, the absolute minimum functional input is 3.38 V. Below that, the output drops linearly with input, and regulation is lost.
LD6806TD/33H,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):
- 3.3V
- 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/33H,125 FAQ
1.How can I place an order for LD6806TD/33H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806TD/33H,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/33H,125 reliable?
The price and inventory of LD6806TD/33H,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/33H,125 is usually 5 days.
3.What payment methods are accepted for LD6806TD/33H,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806TD/33H,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806TD/33H,125?
LD6806TD/33H,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806TD/33H,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/33H,125?
For technical support, including LD6806TD/33H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806TD/33H,125 requirements.
6.How does Aetrix verify that LD6806TD/33H,125 is sourced from the original manufacturer or authorized distributors?
All LD6806TD/33H,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/33H,125 meets industry standards.
7.What is the process for return or replacement of LD6806TD/33H,125?
All LD6806TD/33H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806TD/33H,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/33H,125 part is unused and in its original packaging.
Return procedure for LD6806TD/33H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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