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NXP Semiconductors LD6806TD/14H,125
- Part No.:
- LD6806TD/14H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6806TD/14H,125.pdf
- Description:
- IC REG LINEAR 1.4V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
LD6806TD/14H,125 from NXP Semiconductors is a 1.4 V fixed-output, 200 mA ultra-low-dropout linear regulator in SOT753 (TSOP5) package, featuring 80 mV typical dropout at 200 mA, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable with 1.4 V VIH threshold - designed for power-sensitive mobile handset and media player subsystems requiring stable low-voltage bias.
For engineers reviewing the LD6806TD/14H,125 datasheet, LD6806TD/14H,125 pinout, LD6806TD/14H,125 application, or LD6806TD/14H,125 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 1.0 µF X7R ceramic output capacitors.
Technical Context
The LD6806TD/14H,125 implements a PMOS pass transistor architecture enabling ultra-low dropout and fast 200 µs startup time. Its internal reference generator and error amplifier maintain regulation across input voltages from 2.3 V to 5.5 V while rejecting supply ripple with 55 dB PSRR at 1 kHz.
Thermal protection triggers at 160 °C junction temperature with 20 K hysteresis, and overcurrent limiting caps peak output current at 300 mA. The device operates across −40 °C to +85 °C ambient, with junction-to-ambient thermal resistance of 125 K/W in SOT753 packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.4 V ±2% over −30 °C to +85 °C; supports precision analog and digital core rails in portable devices. |
| Dropout Voltage | 80 mV typical at 200 mA load; enables operation with minimal headroom, e.g., 1.48 V input sustains full 1.4 V output. |
| Noise (RMS) | 30 µV RMS (10 Hz–100 kHz); suitable for noise-sensitive RF and audio supply domains without additional filtering. |
| PSRR | −55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Enable Threshold | VIH = 1.4 V min, VIL = 0.4 V max; compatible with 1.8 V and 3.3 V GPIO logic without level shifting. |
| Quiescent Current | 70–250 µA under load; drops to 0.1–1.0 µA in shutdown mode, extending battery life in always-on subsystems. |
| Thermal Shutdown | 160 °C trip point with 20 K hysteresis; prevents permanent damage during 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, Pb-free/RoHS-compliant, 0.95 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply voltage | Accepts 2.3–5.5 V; requires local 1 µF ceramic decoupling capacitor for stability and transient response. |
| 2 (GND) | Ground reference | Low-impedance return path; must connect directly to PCB ground plane to minimize noise and thermal resistance. |
| 3 (EN) | Enable control input | Active-HIGH logic; drives internal regulator core; floating state defaults to disabled (high-ohmic output). |
| 4 (n.c.) | No-connect terminal | Internally unconnected; must remain unpopulated or left floating - no external connection permitted. |
| 5 (OUT) | Regulated output | Delivers 1.4 V at up to 200 mA; high-ohmic (3-state) when EN = LOW, enabling seamless rail sequencing in multi-rail systems. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 80 mV typ. at 200 mA enables use with single-cell Li-ion (3.0–4.2 V) or dual-cell alkaline inputs while maintaining 1.4 V output. |
| Low-noise regulation | 30 µVRMS noise ensures clean power for ADC references, PLLs, and RF front-end ICs without added LC filtering. |
| Fast start-up | 200 µs turn-on time allows rapid subsystem wake-up from deep sleep, reducing system latency in responsive user interfaces. |
| High-ohmic disable | Outputs enter high-impedance state when disabled - critical for bus sharing, hot-swap, and power domain isolation in multi-IC designs. |
| Robust protection | Integrated thermal shutdown (160 °C), current limiting (300 mA), and 10 kV HBM ESD protection simplify system-level reliability design. |
Applications
| Mobile Phone Baseband Core | Wireless Headset Audio Codec |
|---|---|
|
Use Scenario: Powering ARM-based baseband processor cores requiring stable 1.4 V at up to 180 mA during burst data transmission. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout voltage source with fast enable/disable for dynamic power gating. Use Value: Enables >95% efficiency at light loads and eliminates need for post-regulation LC filters due to 30 µVRMS noise. |
Use Scenario: Supplying stereo audio DAC/ADC in Bluetooth headset where EMI-sensitive analog sections coexist with digital logic. IC Role / Device Role / Timing Role: Dedicated low-noise analog rail generator with independent enable control synchronized to audio playback state. Use Value: Prevents audible switching artifacts by maintaining <30 µVRMS noise floor and supporting 200 µs on/off transitions aligned with codec mute timing. |
| Portable Media Player Display Driver | Smart Wearable Sensor Hub |
|
Use Scenario: Biasing OLED display driver ICs requiring precise 1.4 V supply with minimal voltage drift across temperature. IC Role / Device Role / Timing Role: Fixed-output LDO with ±0.5% initial accuracy and ±3% total variation over −30 °C to +85 °C. Use Value: Ensures consistent display brightness and color fidelity without calibration overhead, even during ambient temperature swings. |
Use Scenario: Powering MEMS accelerometer, gyroscope, and BLE SoC in compact wearable form factor with strict size constraints. IC Role / Device Role / Timing Role: Miniaturized 1.4 V rail generator in SOT753 (2.7 × 3.1 mm) supporting dynamic power cycling via host MCU GPIO. Use Value: Reduces PCB area vs. larger packages while delivering 200 µA quiescent current in sleep mode and 200 µs wake-up latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1402E/TT | 1.4 V fixed, 250 mA, 175 mV dropout at 250 mA; SOT23-5 package; no thermal shutdown hysteresis. | Lacks 20 K thermal hysteresis and high-ohmic disable - unsuitable for rail isolation or thermally aggressive environments. | Select only if board space permits SOT23-5 and thermal margin exceeds 30 K above ambient. |
| Torex XC6206P142MR-G | 1.4 V fixed, 250 mA, 160 mV dropout at 100 mA; SOT23-5; 1.0 µA shutdown current but no enable pin. | Disable controlled only by input voltage removal - incompatible with sequenced multi-rail power management. | Use only in simple always-on applications where enable control and rail isolation are not required. |
Compared with MCP1700T-1402E/TT and XC6206P142MR-G, LD6806TD/14H,125 provides superior thermal resilience (160 °C trip + 20 K hysteresis), true 3-state disable for rail sharing, and lower dropout (80 mV vs. ≥160 mV), making it optimal for compact, thermally constrained, and dynamically powered portable systems.
Availability
LD6806TD/14H,125 is available at Aetrix Electronics and suitable for mobile handset power management, wireless audio subsystems, and portable display driver applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for LD6806TD/14H,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 electronics.
The LD6806 series was engineered specifically for miniaturized portable electronics, emphasizing ultra-low dropout, low noise, and high-ohmic disable functionality to meet stringent power integrity and space constraints in mobile handsets and wearables.
FAQ
What is the nominal output voltage and tolerance of LD6806TD/14H,125?
The LD6806TD/14H,125 delivers a fixed 1.4 V output with ±2% tolerance over the full operating temperature range (−30 °C to +85 °C) and ±0.5% at +25 °C. This tight initial accuracy ensures reliable operation of 1.4 V logic and analog circuits without external trimming, and is confirmed in Table 10 of the NXP datasheet Rev. 3.
Does LD6806TD/14H,125 support high-ohmic (3-state) output during disable?
Yes, LD6806TD/14H,125 features a high-ohmic output state when the EN pin is driven LOW, as indicated by the "H" suffix in its part number per Table 5. This allows safe rail sharing and prevents back-driving in multi-supply systems - a key differentiator from low-ohmic "P" variants like LD6806TD/14P.
What is the minimum recommended output capacitor for stable operation of LD6806TD/14H,125?
The LD6806TD/14H,125 requires a minimum 1.0 µF X7R ceramic capacitor at the OUT pin for guaranteed stability, as specified in Table 11 and Section 10.1. Capacitor tolerance must be ±30% or better across −40 °C to +125 °C, and ESR must stay between 5 mΩ and 500 mΩ.
What is the thermal shutdown behavior of LD6806TD/14H,125?
LD6806TD/14H,125 activates thermal shutdown at 160 °C junction temperature (Tsd) and remains off until junction temperature falls by 20 K (Tsd(hys)), resuming regulation only at ≤140 °C. This hysteresis prevents oscillation near the trip point and is documented in Table 10 of the datasheet.
Can LD6806TD/14H,125 operate from a 2.3 V input while delivering 1.4 V at 200 mA?
Yes - LD6806TD/14H,125 maintains regulation with only 80 mV typical dropout at 200 mA, so a 2.3 V input yields ≥2.22 V headroom, well above the required 0.08 V minimum. This enables direct use with partially discharged single-cell Li-ion batteries (down to ~3.0 V) when paired with higher input rails.
LD6806TD/14H,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):
- 1.4V
- 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/14H,125 FAQ
1.How can I place an order for LD6806TD/14H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806TD/14H,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/14H,125 reliable?
The price and inventory of LD6806TD/14H,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/14H,125 is usually 5 days.
3.What payment methods are accepted for LD6806TD/14H,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806TD/14H,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806TD/14H,125?
LD6806TD/14H,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806TD/14H,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/14H,125?
For technical support, including LD6806TD/14H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806TD/14H,125 requirements.
6.How does Aetrix verify that LD6806TD/14H,125 is sourced from the original manufacturer or authorized distributors?
All LD6806TD/14H,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/14H,125 meets industry standards.
7.What is the process for return or replacement of LD6806TD/14H,125?
All LD6806TD/14H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806TD/14H,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/14H,125 part is unused and in its original packaging.
Return procedure for LD6806TD/14H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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