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NXP Semiconductors LD6806TD/20P,125
- Part No.:
- LD6806TD/20P,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6806TD/20P,125.pdf
- Description:
- IC REG LINEAR 2V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:24,000
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Product details
Overview
LD6806TD/20P,125 from NXP Semiconductors is a 2.0 V fixed-output, low-noise, ultra-low-dropout linear regulator in SOT753 (TSOP5) package, delivering up to 200 mA with 80 mV typical dropout at full load, 30 µV RMS output noise (10 Hz–100 kHz), and 200 µs startup time. It features active-HIGH enable, thermal shutdown, overcurrent protection, and a pull-down transistor for low-ohmic output during disable-ideal for power management in space-constrained mobile handsets and portable media players.
For engineers reviewing the LD6806TD/20P,125 datasheet, LD6806TD/20P,125 pinout, LD6806TD/20P,125 application, or LD6806TD/20P,125 equivalent, key selection criteria include its 2.0 V fixed output, SOT753 footprint compatibility, 2.3–5.5 V input range, 55 dB PSRR at 1 kHz, and guaranteed 100 Ω pull-down resistance when disabled.
Technical Context
The LD6806TD/20P,125 implements a PMOS pass transistor architecture enabling ultra-low dropout and fast transient response. Its internal bandgap reference and error amplifier maintain tight output regulation across temperature and load, while integrated thermal and current-limiting circuitry ensure robust operation under fault conditions.
Unlike the H-suffix variants, the P-suffix confirms inclusion of an active pull-down switch on the OUT pin, providing controlled discharge during disable-critical for sequencing-sensitive systems. The device operates across −40 °C to +85 °C ambient and supports stable regulation with ≥1.0 µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.0 V ±2% over −30 °C to +85 °C; ensures stable core voltage for 2.0 V logic rails without external feedback. |
| Dropout Voltage | 80 mV typical at 200 mA; enables operation with VIN as low as 2.08 V, maximizing battery runtime in single-cell Li-ion or Li-poly systems. |
| PSRR | −55 dB at 1 kHz; suppresses ripple from noisy switching supplies feeding the LDO input, preserving analog signal integrity. |
| Output Noise | 30 µV RMS (10 Hz–100 kHz); minimizes phase noise in RF sections and jitter in clocked digital interfaces. |
| Enable Threshold | VIH = 1.4 V min, VIL = 0.4 V max; compatible with 1.8 V and 3.3 V GPIOs for precise system-level power sequencing control. |
| Shutdown Current | 0.1–1.0 µA typical; reduces standby power in always-on subsystems such as real-time clocks or sensor hubs. |
| Pull-down Resistance | 100 Ω typical when disabled; actively discharges output capacitance within microseconds, preventing floating or unintended wake-up. |
Pinout & Package
SOT753 (TSOP5) plastic surface-mounted package: 5-lead, gull-wing, 0.95 mm pitch, body size 2.9 × 1.5 × 1.1 mm (L × W × H).
| 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 and transient response. |
| 2 (GND) | Power ground reference | Low-impedance return path; must connect directly to PCB ground plane to minimize noise coupling. |
| 3 (EN) | Enable control input | Active-HIGH logic; drives high (>1.4 V) to activate regulator; pulls low (<0.4 V) to enter shutdown with pull-down active. |
| 4 (n.c.) | No-connect terminal | Internally unconnected; must remain unpopulated and unconnected on PCB to avoid parasitic coupling. |
| 5 (OUT) | Regulated output | Delivers 2.0 V at up to 200 mA; includes integrated 100 Ω pull-down switch activated during EN = LOW. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 80 mV at 200 mA enables use with weak or deeply discharged batteries while maintaining regulation. |
| Low-noise output | 30 µV RMS noise supports noise-sensitive analog circuits like ADC references and RF synthesizers. |
| Fast startup | 200 µs turn-on time allows rapid power-up of subsystems in responsive user-interface designs. |
| Integrated pull-down | 100 Ω active discharge prevents output floating during disable-eliminates need for external bleeder resistors. |
| ESD robustness | 10 kV HBM rating simplifies board-level ESD protection design and improves field reliability in handheld devices. |
Applications
| Mobile Phone Baseband Power | Portable Media Player Audio Core |
|---|---|
Use Scenario: Supplying 2.0 V to baseband processor I/O banks in slim smartphone designs where board area is constrained. IC Role / Device Role / Timing Role: Primary low-noise, sequenced power rail for digital interface logic requiring fast enable/disable control. Use Value: Pull-down functionality ensures clean power-down of I/O lines, preventing bus contention during sleep mode transitions. | Use Scenario: Powering DAC and headphone amplifier stages in battery-powered MP3 players. IC Role / Device Role / Timing Role: Clean, low-noise 2.0 V source isolated from noisy DC-DC converters powering digital subsystems. Use Value: 30 µV RMS noise and 55 dB PSRR preserve audio SNR and prevent audible switching artifacts. |
| Wearable Sensor Hub | IoT Edge Node MCU Core |
Use Scenario: Regulating power for ultra-low-power inertial measurement units (IMUs) and environmental sensors in compact wearables. IC Role / Device Role / Timing Role: Always-on LDO supplying sensor interface and wake-up logic with sub-µA shutdown current. Use Value: 0.1 µA typical quiescent current in shutdown extends multi-week battery life in intermittent-sensing applications. | Use Scenario: Providing 2.0 V core voltage to ARM Cortex-M0+ microcontrollers in wireless sensor nodes. IC Role / Device Role / Timing Role: Main system regulator with precise enable timing for synchronized peripheral power-up. Use Value: 200 µs startup time aligns with MCU reset release timing, eliminating boot delays or brown-out resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2002E/TT | 2.0 V fixed, 250 mA, 175 mV dropout at 250 mA, SOT-23-5 package, no integrated pull-down. | Lacks active output discharge; requires external resistor for controlled shutdown. | Select when board space permits SOT-23-5 and pull-down is implemented externally. |
| Torex XC6206P202MR-G | 2.0 V fixed, 250 mA, 160 mV dropout at 250 mA, SOT-25 package, no enable pin or pull-down. | Always-on operation only; no enable control or output discharge capability. | Select for cost-sensitive, non-sequenced applications where enable and shutdown are not required. |
Compared with MCP1700T-2002E/TT and XC6206P202MR-G, the LD6806TD/20P,125 uniquely integrates a 100 Ω pull-down switch and active-HIGH enable in a compact SOT753 package-enabling precise power sequencing and fast output discharge without added components or layout overhead.
Availability
LD6806TD/20P,125 is available at Aetrix Electronics and suitable for mobile handset power management, portable audio subsystems, wearable sensor hubs, and IoT edge node designs requiring stable component supply and long-term manufacturability.
Supply support for LD6806TD/20P,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, miniature LDO portfolio, engineered specifically for space-constrained portable electronics demanding high PSRR, fast transient response, and integrated power sequencing features.
FAQ
What is the nominal output voltage of the LD6806TD/20P,125?
The LD6806TD/20P,125 delivers a fixed 2.0 V output voltage with ±2% tolerance over −30 °C to +85 °C ambient temperature. This value is laser-trimmed during manufacturing and does not require external resistors-ensuring consistent performance across production lots without calibration.
Does the LD6806TD/20P,125 include an output pull-down function?
Yes, the LD6806TD/20P,125 includes an integrated pull-down transistor on the OUT pin, activated when the EN pin is driven LOW. Its typical resistance is 100 Ω, enabling rapid discharge of output capacitance-critical for reliable power sequencing in multi-rail systems.
What is the minimum recommended output capacitor for stable operation of the LD6806TD/20P,125?
The LD6806TD/20P,125 requires a minimum 1.0 µF ceramic output capacitor (X7R dielectric preferred) with ESR between 5 mΩ and 500 mΩ. Using less than 1.0 µF risks instability and excessive overshoot during load transients, per Section 10.1 of the official NXP datasheet.
What is the maximum input voltage rating for the LD6806TD/20P,125?
The absolute maximum input voltage for the LD6806TD/20P,125 is +6.0 V for 4 ms transients, with recommended continuous operation limited to 2.3 V to 5.5 V. Exceeding 5.5 V continuously may cause thermal overstress or premature failure, as specified in Table 7 of the NXP product data sheet.
How does the LD6806TD/20P,125 behave during thermal shutdown?
When junction temperature reaches 160 °C, the LD6806TD/20P,125 disables output regulation and enters thermal shutdown. It remains latched off until temperature drops by 20 K (hysteresis), then automatically resumes regulation-preventing oscillation and ensuring safe recovery without external intervention.
LD6806TD/20P,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):
- 2V
- 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/20P,125 FAQ
1.How can I place an order for LD6806TD/20P,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806TD/20P,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/20P,125 reliable?
The price and inventory of LD6806TD/20P,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/20P,125 is usually 5 days.
3.What payment methods are accepted for LD6806TD/20P,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806TD/20P,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806TD/20P,125?
LD6806TD/20P,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806TD/20P,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/20P,125?
For technical support, including LD6806TD/20P,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806TD/20P,125 requirements.
6.How does Aetrix verify that LD6806TD/20P,125 is sourced from the original manufacturer or authorized distributors?
All LD6806TD/20P,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/20P,125 meets industry standards.
7.What is the process for return or replacement of LD6806TD/20P,125?
All LD6806TD/20P,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806TD/20P,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/20P,125 part is unused and in its original packaging.
Return procedure for LD6806TD/20P,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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