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NXP Semiconductors LD6836TD/16H,125
- Part No.:
- LD6836TD/16H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6836TD/16H,125.pdf
- Description:
- IC REG LINEAR 1.6V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:26,000
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Product details
Overview
LD6836TD/16H,125 from NXP Semiconductors is a 1.6 V fixed-output, 300 mA ultra-low-dropout linear regulator in SOT753 package, featuring 100 mV typical dropout at full load, 55 dB PSRR at 1 kHz, and 30 µVRMS output noise (10 Hz–100 kHz). It delivers stable power to noise-sensitive analog circuitry in space-constrained portable electronics.
For engineers reviewing the LD6836TD/16H,125 datasheet, LD6836TD/16H,125 pinout, LD6836TD/16H,125 application, or LD6836TD/16H,125 equivalent, this page provides verified electrical specs, thermal behavior, enable timing, high-ohmic disable state, and real-world design implications for battery-powered mobile interfaces.
Technical Context
The LD6836TD/16H,125 uses a PMOS pass transistor architecture enabling ultra-low dropout (100 mV typ. at 300 mA) and stable operation with only 0.7 µF output capacitance. Its active-HIGH enable input (VIH ≥ 1.1 V) controls a high-ohmic (3-state) output during shutdown - no pull-down transistor - preserving downstream bias integrity.
Internally, it integrates over-temperature shutdown (160 °C trigger, 20 K hysteresis), current limiting (600 mA short-circuit), and 10 kV HBM ESD protection. The 1.6 V output is trimmed to ±0.5% at +25 °C and ±3% over −30 °C to +85 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.6 V ±3% over −30 °C to +85 °C; enables direct powering of 1.6 V I/O domains without external feedback. |
| Dropout voltage | 100 mV typical at 300 mA; allows regulation from 1.7 V input - critical for single-cell Li-ion or Li-poly systems near end-of-discharge. |
| PSRR | 55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding noisy supply rails. |
| Output noise | 30 µVRMS (10 Hz–100 kHz); supports low-noise ADCs, RF synthesizers, and precision analog sensors without added filtering. |
| Quiescent current | 0.1 µA typical in shutdown (VEN ≤ 0.4 V); extends battery life in always-on standby modes. |
| Enable threshold | VIL ≤ 0.4 V / VIH ≥ 1.1 V; 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 pour for full 300 mA operation at +85 °C ambient. |
Pinout & Package
SOT753 plastic surface-mounted package (SC-74A compatible), 5-lead, 1.3 mm × 2.5 mm footprint, 1.1 mm height. RoHS-compliant, halogen-free, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator input voltage | Accepts 2.3 V–5.5 V; must be decoupled with ≥0.7 µF ceramic capacitor close to pin. |
| 2 (GND) | Supply ground | Primary return path for load and quiescent current; connects directly to PCB ground plane for thermal and noise control. |
| 3 (EN) | Enable input (active HIGH) | Drives internal bandgap reference; <0.4 V disables regulator and places OUT in high-impedance state. |
| 4 (n.c.) | No connection | Internally unconnected; must remain floating - no routing or soldering permitted. |
| 5 (OUT) | Regulator output voltage | Delivers regulated 1.6 V; requires ≥0.7 µF X7R ceramic capacitor with ESR 5–500 mΩ for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 100 mV typical at 300 mA enables >95% efficiency at 1.6 V output from 1.7 V input - ideal for aging battery rails. |
| High-ohmic disable | Outputs open-circuit when disabled (no auto-discharge), preserving charge on downstream capacitors and preventing unintended bias leakage. |
| Low-noise regulation | 30 µVRMS noise floor ensures clean power for RF front-ends, audio codecs, and 12+ bit SAR ADCs without post-regulation filtering. |
| Fast start-up | 150 µs to reach 95% of 1.6 V under 300 mA load - meets tight power sequencing requirements in multi-rail mobile SoCs. |
| Robust protection | Integrated thermal shutdown (160 °C), current limit (600 mA), and 10 kV HBM ESD protect against board-level stress and transient faults. |
Applications
| Smartphone Baseband Power | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Supplying 1.6 V core voltage to LTE/5G baseband processors during burst transmission. IC Role / Device Role / Timing Role: Primary LDO delivering low-noise, fast-response power to processor I/O banks synchronized with RF transmit windows. Use Value: 55 dB PSRR rejects DC-DC ripple from PMIC, while 150 µs start-up aligns with modem wake-up latency - no voltage droop during handshaking. |
Use Scenario: Providing clean 1.6 V bias to CMOS image sensor analog front-end (AFE) during exposure readout. IC Role / Device Role / Timing Role: Low-noise local regulator isolating AFE from noisy system rail, activated only during frame capture. Use Value: 30 µVRMS noise prevents fixed-pattern noise in raw image data; high-ohmic disable prevents sensor reset corruption between frames. |
| Portable Media Player Audio DAC | Wearable Health Monitor Analog Front-End |
Use Scenario: Powering stereo audio DAC requiring ultra-low noise and precise 1.6 V reference compliance. IC Role / Device Role / Timing Role: Dedicated LDO supplying DAC core and reference circuitry, enabled only during playback. Use Value: ±3% output accuracy maintains THD+N spec across temperature; 100 mV dropout extends runtime on single-cell Li-ion down to 1.7 V. |
Use Scenario: Regulating 1.6 V for ECG/PPG analog signal chain in compact wearable patch. IC Role / Device Role / Timing Role: Miniaturized LDO in SOT753 powering op-amps, filters, and ADC drivers in ultra-low-power biosensing mode. Use Value: 0.1 µA shutdown current minimizes quiescent drain; 1.3 mm × 2.5 mm footprint fits constrained flex PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B162MR-G | 1.6 V fixed, 300 mA, 150 mV dropout (typ.), SOT-25; no integrated ESD protection (requires external TVS). | Lacks 10 kV HBM ESD rating; less robust in handheld drop-test environments. | Choose if cost sensitivity outweighs ESD hardening needs and board space permits external protection. |
| Richtek RT9193-16GB | 1.6 V fixed, 300 mA, 200 mV dropout (typ.), SOT-25; 60 µVRMS noise, no thermal hysteresis. | Higher noise degrades SNR in precision analog paths; thermal shutdown lacks hysteresis (risk of cycling). | Prefer only for non-critical digital I/O rails where noise and thermal stability are secondary. |
Compared with XC6219B162MR-G and RT9193-16GB, LD6836TD/16H,125 offers superior noise performance (30 vs. 60 µVRMS), lower dropout (100 vs. 150–200 mV), and certified 10 kV HBM ESD - making it the optimal choice for high-integrity analog subsystems in portable consumer devices.
Availability
LD6836TD/16H,125 is available at Aetrix Electronics and suitable for smartphone baseband power, portable camera sensor bias, and wearable health monitor analog front-end designs requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/halogen-free compliance.
Supply support for LD6836TD/16H,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 leader focused on secure connectivity solutions for automotive, industrial, and consumer markets, with deep expertise in power management ICs and RF technologies.
The LD6836 series was designed specifically for ultra-low-noise, miniaturized power delivery in battery-operated mobile appliances - emphasizing dropout efficiency, PSRR, and integration of protection features without sacrificing footprint.
FAQ
What is the maximum input voltage rating for LD6836TD/16H,125?
The absolute maximum input voltage for LD6836TD/16H,125 is +6.0 V for 4 ms transients, with recommended continuous operation between 2.3 V and 5.5 V. Exceeding 6.0 V risks permanent damage to the internal PMOS pass device and bandgap reference circuitry. Always include input transient suppression if used in automotive or industrial environments with load-dump risk.
Does LD6836TD/16H,125 require an input capacitor?
Yes - LD6836TD/16H,125 requires a minimum 0.7 µF ceramic input capacitor (X7R, ±30% tolerance) placed within 2 mm of the IN and GND pins. This stabilizes the input rail against source impedance and prevents oscillation during load transients. Without it, PSRR degrades and startup may become erratic, especially when fed from high-ESR sources like ferrite-bead-filtered DC-DC outputs.
What happens to the output pin of LD6836TD/16H,125 when the EN pin is pulled LOW?
When EN is pulled below 0.4 V, LD6836TD/16H,125 enters shutdown mode and places the OUT pin in a high-ohmic (3-state) floating condition - no internal pull-down or pull-up. This preserves charge on downstream capacitors and avoids unintended discharge paths, unlike P-version variants which actively pull OUT to GND via an integrated transistor.
Can LD6836TD/16H,125 operate with a 0.47 µF output capacitor?
No - LD6836TD/16H,125 requires a minimum 0.7 µF output capacitance (X7R, ±30%) for guaranteed stability across temperature and load. Using 0.47 µF violates the datasheet's CL(ext) specification and may cause sustained ringing, overshoot during startup, or oscillation under dynamic load steps - particularly above 100 mA. Always verify phase margin with bench testing if deviating.
Is LD6836TD/16H,125 pin-compatible with other SOT753 LDOs?
LD6836TD/16H,125 follows standard SOT753 pinout (IN-GND-EN-n.c.-OUT), but pin compatibility does not guarantee functional equivalence. Substituting other SOT753 LDOs requires verification of enable polarity (active HIGH), dropout, PSRR, noise, and protection features - e.g., many alternatives lack 10 kV HBM ESD or thermal hysteresis. Always cross-check electrical characteristics before replacement.
LD6836TD/16H,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):
- 0.2V @ 300mA
- Current - Output:
- 300mA
- 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
LD6836TD/16H,125 FAQ
1.How can I place an order for LD6836TD/16H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836TD/16H,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 LD6836TD/16H,125 reliable?
The price and inventory of LD6836TD/16H,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6836TD/16H,125 is usually 5 days.
3.What payment methods are accepted for LD6836TD/16H,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836TD/16H,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836TD/16H,125?
LD6836TD/16H,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836TD/16H,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 LD6836TD/16H,125?
For technical support, including LD6836TD/16H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836TD/16H,125 requirements.
6.How does Aetrix verify that LD6836TD/16H,125 is sourced from the original manufacturer or authorized distributors?
All LD6836TD/16H,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 LD6836TD/16H,125 meets industry standards.
7.What is the process for return or replacement of LD6836TD/16H,125?
All LD6836TD/16H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836TD/16H,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 LD6836TD/16H,125 part is unused and in its original packaging.
Return procedure for LD6836TD/16H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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