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NXP Semiconductors LD6806TD/22H,125
- Part No.:
- LD6806TD/22H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6806TD/22H,125.pdf
- Description:
- IC REG LINEAR 2.2V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:27,000
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Product details
Overview
LD6806TD/22H,125 from NXP Semiconductors is a 2.2 V fixed-output, 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 high-ohmic (3-state) output during disable. It operates from 2.3 V to 5.5 V input and supports mobile handset power rails requiring tight voltage accuracy and low noise.
For engineers reviewing the LD6806TD/22H,125 datasheet, LD6806TD/22H,125 pinout, LD6806TD/22H,125 application, or LD6806TD/22H,125 equivalent, key selection criteria include its 2.2 V nominal output, 55 dB PSRR at 1 kHz, thermal shutdown (160 °C), current limiting, and enable-active-HIGH control for battery-powered portable systems.
Technical Context
The LD6806TD/22H,125 uses a monolithic silicon LDO architecture with internal reference generator, feedback resistive divider (R1/R2), and thermal/overcurrent protection circuitry. Its high-ohmic output state when disabled isolates downstream circuitry without loading, critical for power sequencing in multi-rail mobile SoCs.
It achieves stable regulation with ≥1.0 µF ceramic output capacitance (X7R, ESR 5–500 mΩ) and exhibits 0.005 %/mA load regulation error across 1–200 mA. The 200 µs startup time and 1.0 µA shutdown quiescent current support rapid power cycling in always-on subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 2.2 V ±2 % over −40 °C to +85 °C ambient; enables direct replacement of 2.2 V logic or analog supply rails. |
| Dropout voltage | 80 mV typical at 200 mA (SOT753 variant); allows operation with only 2.28 V input, maximizing battery runtime in single-cell Li-ion 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); meets low-noise requirements for RF front-end biasing and precision ADC references. |
| Quiescent current | 70–100 µA active; 0.1–1.0 µA in shutdown; minimizes standby power loss in sleep-mode applications. |
| 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 protection | Shuts down at 160 °C junction temperature 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, 3.0 mm × 2.5 mm × 1.1 mm body, 0.95 mm lead pitch, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Input voltage supply | Accepts 2.3–5.5 V; requires local 1 µF ceramic decoupling capacitor for stability. |
| 2 GND | Ground reference | Low-impedance return path; must connect directly to PCB ground plane with minimal trace inductance. |
| 3 EN | Enable control input | Active-HIGH logic; pulls up to VIN or external 1.8/3.3 V rail; no pull-up resistor required internally. |
| 4 n.c. | No connection | Internally unconnected; must remain floating-no external connection permitted. |
| 5 OUT | Regulated output | Delivers 2.2 V ±2 % at up to 200 mA; high-ohmic state when EN = LOW isolates downstream loads. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 80 mV typical at full 200 mA load enables use with weak or aging batteries in portable devices. |
| Low-noise regulation | 30 µVRMS output noise ensures clean power for sensitive analog circuits without additional filtering. |
| Fast startup | 200 µs turn-on time supports dynamic power management in burst-mode communication subsystems. |
| Integrated ESD protection | 10 kV HBM rating eliminates need for external TVS diodes on IN/OUT pins in handheld designs. |
| Thermal & current limiting | Auto-recovery shutdown at 160 °C and foldback current limit protect against short-circuit faults and PCB overheating. |
Applications
| Mobile Phone Baseband Power | Wireless Headset Audio Bias |
|---|---|
Use Scenario: Powers baseband processor I/O banks requiring stable 2.2 V supply with fast transient response during cellular transmission bursts. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 2.2 V rail; enabled/disabled synchronously with modem sleep/wake signals. Use Value: High-ohmic disable state prevents back-powering of inactive baseband sections, reducing system leakage current by >95 %. | Use Scenario: Supplies low-noise bias to MEMS microphones and Class-D audio amplifiers in Bluetooth headsets. IC Role / Device Role / Timing Role: Low-noise post-regulator cleaning switched DC-DC output; enabled only during audio capture/playback. Use Value: 30 µVRMS noise floor avoids audible hiss in headset output; 55 dB PSRR rejects DC-DC ripple at 1–2 MHz switching frequencies. |
| Portable Media Player Display Interface | Wearable Sensor Hub Core Supply |
Use Scenario: Provides 2.2 V supply to MIPI DSI interface logic and display timing controller in compact media players. IC Role / Device Role / Timing Role: Dedicated LDO for display subsystem; sequenced after main SoC power rail via EN pin. Use Value: 0.005 %/mA load regulation maintains <±10 mV output deviation across full 1–200 mA interface current swing. | Use Scenario: Powers ultra-low-power sensor fusion MCU core in fitness trackers where battery life exceeds 7 days. IC Role / Device Role / Timing Role: Always-on LDO supplying MCU VDD_CORE; shutdown during deep-sleep mode via host processor GPIO. Use Value: 1.0 µA shutdown current extends battery life; 200 µs startup enables sub-millisecond wake-from-sleep latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2112K-2.2TRG1 | 200 mA, 2.2 V fixed, SOT23-5; 250 mV dropout at 200 mA; no thermal shutdown; 65 µVRMS noise. | Lacks thermal protection and higher noise limits use in thermally constrained or noise-sensitive designs. | Choose only if cost sensitivity outweighs reliability and noise requirements; verify thermal margin in final layout. |
| MCP1700T-2202E/TT | 250 mA, 2.2 V fixed, SOT23-3; 600 mV dropout at 250 mA; 1.6 µA quiescent current; no enable pin. | Higher dropout reduces usable battery range; lack of EN pin prevents dynamic power gating. | Select only for simple always-on applications with ample input headroom and no sequencing needs. |
Compared with AP2112K-2.2TRG1 and MCP1700T-2202E/TT, LD6806TD/22H,125 delivers superior thermal safety, lower noise, and precise enable control-critical for modern portable electronics where power integrity and reliability are non-negotiable.
Availability
LD6806TD/22H,125 is available at Aetrix Electronics and suitable for mobile handset power management, wireless audio biasing, and wearable sensor hub applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for LD6806TD/22H,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 space-constrained portable electronics, emphasizing ultra-low dropout, low noise, and high-ohmic disable behavior to extend battery life and simplify power sequencing in multi-rail mobile platforms.
FAQ
What is the maximum input voltage rating for LD6806TD/22H,125?
The absolute maximum input voltage on the IN pin of LD6806TD/22H,125 is +6.0 V for transients up to 4 ms, per the Absolute Maximum Ratings table. Continuous operation must remain within the recommended 2.3 V to 5.5 V range to ensure specified performance and reliability. Exceeding 6.0 V-even briefly-risks permanent damage to the internal pass transistor and reference circuitry.
Does LD6806TD/22H,125 require an external output capacitor, and what type is recommended?
Yes, LD6806TD/22H,125 requires a minimum 1.0 µF ceramic output capacitor for stability, with X7R dielectric preferred to maintain capacitance across −40 °C to +125 °C. The capacitor must have ESR between 5 mΩ and 500 mΩ. Using less than 0.7 µF risks oscillation; tantalum or aluminum electrolytics are not recommended due to ESR and temperature drift limitations.
How does the high-ohmic output state function during disable on LD6806TD/22H,125?
When the EN pin is driven LOW (<0.4 V), LD6806TD/22H,125 disables its pass transistor and places the OUT pin in a high-impedance (3-state) condition-neither sourcing nor sinking significant current. This prevents back-powering of downstream circuits and eliminates leakage paths, unlike low-ohmic variants (e.g., LD6806TD/22P) that actively pull OUT to GND via an internal switch.
What is the thermal resistance (Rth(j-a)) of LD6806TD/22H,125 in its SOT753 package?
The typical thermal resistance from junction to ambient for LD6806TD/22H,125 in SOT753 is 125 K/W under standard test conditions (2-layer PCB, Tamb = 25 °C). Actual performance depends heavily on PCB copper area and via count beneath the GND pad; doubling the thermal copper area can reduce Rth(j-a) by ~20–30 K/W in production layouts.
Can LD6806TD/22H,125 be used with a 1.8 V enable signal?
Yes, LD6806TD/22H,125 is fully compatible with 1.8 V GPIOs: its VIH (min) is 1.4 V and VIL (max) is 0.4 V, providing 0.4 V noise margin for HIGH and 1.4 V margin for LOW. No level shifter is needed-direct connection to 1.8 V microcontroller outputs is safe and functional across the full −40 °C to +85 °C operating range.
LD6806TD/22H,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):
- 2.2V
- 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/22H,125 FAQ
1.How can I place an order for LD6806TD/22H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806TD/22H,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/22H,125 reliable?
The price and inventory of LD6806TD/22H,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/22H,125 is usually 5 days.
3.What payment methods are accepted for LD6806TD/22H,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806TD/22H,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806TD/22H,125?
LD6806TD/22H,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806TD/22H,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/22H,125?
For technical support, including LD6806TD/22H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806TD/22H,125 requirements.
6.How does Aetrix verify that LD6806TD/22H,125 is sourced from the original manufacturer or authorized distributors?
All LD6806TD/22H,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/22H,125 meets industry standards.
7.What is the process for return or replacement of LD6806TD/22H,125?
All LD6806TD/22H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806TD/22H,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/22H,125 part is unused and in its original packaging.
Return procedure for LD6806TD/22H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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