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NXP Semiconductors LD6806TD/16P,125
- Part No.:
- LD6806TD/16P,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6806TD/16P,125.pdf
- Description:
- IC REG LINEAR 1.6V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:24,000
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Product details
Overview
LD6806TD/16P,125 from NXP Semiconductors is a 1.6 V, 200 mA ultra-low-dropout linear regulator in SOT753 (TSOP5) package with 80 mV typical dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable pin. It delivers stable low-noise power for voltage-sensitive analog circuits in space-constrained mobile handsets and portable media players.
For engineers reviewing the LD6806TD/16P,125 datasheet, LD6806TD/16P,125 pinout, LD6806TD/16P,125 application, or LD6806TD/16P,125 equivalent, key selection criteria include its 1.6 V fixed output, thermal shutdown (160 °C), pull-down output stage during disable, PSRR of −55 dB at 1 kHz, and compatibility with 1 µF X7R ceramic output capacitors.
Technical Context
The LD6806TD/16P,125 uses a monolithic silicon LDO architecture with internal reference generator, current limiter, and thermal protection circuitry. Its enable input (VEN) has defined VIH (≥1.4 V) and VIL (≤0.4 V) thresholds independent of input voltage, ensuring robust digital control interfacing.
Unlike high-ohmic variants (e.g., LD6806TD/16H), this P-suffix device integrates a low-ohmic pull-down transistor (Rpd = 100 Ω typ.) at the output pin during shutdown, preventing floating outputs in multi-rail systems and enabling fast discharge of downstream capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.6 V ±3% over −40 °C to +85 °C ambient; supports precision analog supply rails without external feedback. |
| Dropout voltage | 80 mV typical at 200 mA load; enables operation with VIN as low as 1.68 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 the LDO input. |
| Output noise | 30 µVRMS (10 Hz–100 kHz); suitable for powering RF receivers, ADC references, and audio codecs requiring clean bias. |
| Quiescent current | 70–100 µA typical under load; drops to 0.1–1.0 µA in shutdown, critical for always-on sensor nodes. |
| Enable threshold | VIH ≥ 1.4 V, VIL ≤ 0.4 V; compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
| Thermal shutdown | Triggers at 160 °C junction temperature with 20 K hysteresis; protects against sustained overload or poor PCB thermal design. |
Pinout & Package
SOT753 (TSOP5) plastic surface-mounted package: 5-lead gull-wing, 2.7 mm × 3.1 mm × 1.3 mm body, 0.95 mm lead pitch, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2.3 V to 5.5 V; requires local 1 µF ceramic decoupling capacitor per datasheet recommendation. |
| 2 (GND) | Ground reference | Primary return path for regulator current and enable logic; must connect to low-impedance ground plane. |
| 3 (EN) | Enable control input | Active-HIGH logic; drives internal pass transistor when ≥1.4 V; pulls output low when ≤0.4 V. |
| 4 (n.c.) | No connection | Internally unconnected; must remain unpopulated or left floating-no external tie required. |
| 5 (OUT) | Regulated output | Delivers 1.6 V at up to 200 mA; includes integrated 100 Ω pull-down transistor when EN = LOW. |
Key Features
| Feature | Design Value |
|---|---|
| Low-ohmic shutdown output | 100 Ω typical pull-down resistance ensures rapid discharge of 1 µF output capacitance (<300 µs), preventing latch-up in sequenced power systems. |
| Ultra-low noise regulation | 30 µVRMS noise floor enables direct powering of precision analog blocks without additional filtering stages. |
| Fast start-up time | 200 µs to reach 95% of 1.6 V output enables responsive power management in wake-from-sleep scenarios. |
| ESD robustness | 10 kV HBM ESD rating allows safe handling in standard assembly environments without special precautions. |
| Thermal protection with hysteresis | 160 °C shutdown with 20 K hysteresis prevents thermal cycling during transient overloads, improving system reliability. |
Applications
| Mobile Baseband Power | RF Front-End Bias |
|---|---|
Use Scenario: Supplying core voltage to 3G/4G LTE baseband processors in smartphones where input rail is shared with higher-voltage DC-DC outputs. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering stable 1.6 V to processor I/O and memory interfaces. Use Value: 80 mV dropout preserves headroom on 1.8 V intermediate rail; 55 dB PSRR rejects ripple from adjacent buck converters. | Use Scenario: Biasing low-noise amplifiers (LNAs) and mixer stages in cellular front-end modules. IC Role / Device Role / Timing Role: Clean analog supply source with minimal phase noise contribution to RF signal chain. Use Value: 30 µVRMS noise avoids degradation of receiver sensitivity; fast 200 µs start-up synchronizes with RF transceiver enable timing. |
| Portable Audio Codec | Wearable Sensor Hub |
Use Scenario: Powering stereo audio DACs and headphone amplifiers in Bluetooth earbuds with tight board area constraints. IC Role / Device Role / Timing Role: Fixed-output LDO supplying AVDD and DVDD rails for mixed-signal audio ICs. Use Value: SOT753 footprint (2.7 × 3.1 mm) fits narrow PCBs; 1.6 V output matches codec core voltage requirements. | Use Scenario: Providing regulated 1.6 V to ultra-low-power inertial measurement units (IMUs) and environmental sensors in fitness trackers. IC Role / Device Role / Timing Role: Always-on supply with sub-1 µA shutdown current extending battery life between motion-triggered measurements. Use Value: 0.1–1.0 µA quiescent current in disable mode minimizes standby drain; pull-down output prevents floating sensor inputs during sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1602E/MB | 1.6 V fixed output, 250 mA, SOT-23-5 package; 175 mV dropout at 250 mA; no integrated pull-down transistor. | Lacks active output discharge; requires external pulldown resistor for controlled shutdown discharge. | Select when board space permits SOT-23-5 and pull-down functionality is implemented externally. |
| Torex XC6206P162MR-G | 1.6 V fixed output, 250 mA, SOT-25 package; 250 mV dropout at 250 mA; 45 µVRMS noise; no thermal shutdown. | Higher dropout and noise; lacks thermal protection and enable-controlled pull-down. | Select for cost-sensitive, non-thermal-critical applications where 250 mV dropout is acceptable. |
Compared with MCP1700T-1602E/MB and XC6206P162MR-G, LD6806TD/16P,125 provides lower dropout (80 mV vs. ≥175 mV), lower noise (30 µVRMS), integrated thermal shutdown, and guaranteed 100 Ω pull-down-making it optimal for thermally constrained, noise-sensitive, and sequenced-power mobile designs.
Availability
LD6806TD/16P,125 is available at Aetrix Electronics and suitable for mobile handset power management, portable audio subsystems, and wearable sensor hub designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for LD6806TD/16P,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 LD6806 series was designed specifically for miniaturized portable electronics requiring ultra-low-noise, low-dropout regulation in wafer-level CSP, leadless, and gull-wing packages-targeting mobile phone handsets, cordless telephones, and personal digital assistants.
FAQ
What is the nominal output voltage of LD6806TD/16P,125?
The LD6806TD/16P,125 delivers a fixed nominal output voltage of 1.6 V, with guaranteed tolerance of ±3% across −40 °C to +85 °C ambient temperature and 1 mA to 200 mA load current. This value is factory-trimmed and does not require external resistors, making LD6806TD/16P,125 ideal for space-constrained applications where precision and simplicity are critical.
Does LD6806TD/16P,125 include thermal protection?
Yes, LD6806TD/16P,125 incorporates integrated thermal shutdown protection that activates at a junction temperature of 160 °C, with 20 K hysteresis to prevent oscillation during recovery. This feature is documented in Table 10 of the NXP datasheet and operates independently of enable state-ensuring safe operation even during sustained overload or inadequate PCB heat sinking.
What is the purpose of the 'P' suffix in LD6806TD/16P,125?
The 'P' suffix in LD6806TD/16P,125 denotes a low-ohmic output stage during disable: when the EN pin is driven LOW, an internal 100 Ω (typical) pull-down transistor actively discharges the OUT pin. This distinguishes it from 'H'-suffix variants (e.g., LD6806TD/16H), which enter a high-impedance (tri-state) condition. The P-version is essential for systems requiring controlled output discharge during power sequencing.
What output capacitor is required for stable operation of LD6806TD/16P,125?
LD6806TD/16P,125 requires a minimum 1.0 µF X7R ceramic output capacitor with ESR between 5 mΩ and 500 mΩ, as specified in Table 11 and Section 10.1 of the NXP datasheet. Using a 1 µF X7R capacitor ensures stability across temperature, meets the 0.7 µF absolute minimum, and supports the 200 µs startup time and 300 µs shutdown time performance.
Is LD6806TD/16P,125 compatible with lead-free reflow soldering processes?
Yes, LD6806TD/16P,125 is RoHS-compliant and qualified for lead-free reflow soldering per J-STD-020C. Its SOT753 package falls under the <350 mm³ volume category and requires a peak reflow temperature of 260 °C. The device's moisture sensitivity level (MSL) must be observed per packaging labeling to prevent popcorning during assembly.
LD6806TD/16P,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):
- 1.6V
- 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/16P,125 FAQ
1.How can I place an order for LD6806TD/16P,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806TD/16P,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/16P,125 reliable?
The price and inventory of LD6806TD/16P,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/16P,125 is usually 5 days.
3.What payment methods are accepted for LD6806TD/16P,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806TD/16P,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806TD/16P,125?
LD6806TD/16P,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806TD/16P,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/16P,125?
For technical support, including LD6806TD/16P,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806TD/16P,125 requirements.
6.How does Aetrix verify that LD6806TD/16P,125 is sourced from the original manufacturer or authorized distributors?
All LD6806TD/16P,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/16P,125 meets industry standards.
7.What is the process for return or replacement of LD6806TD/16P,125?
All LD6806TD/16P,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806TD/16P,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/16P,125 part is unused and in its original packaging.
Return procedure for LD6806TD/16P,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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