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NXP Semiconductors LD6836TD/36H,125
- Part No.:
- LD6836TD/36H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6836TD/36H,125.pdf
- Description:
- IC REG LINEAR 3.6V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
LD6836TD/36H,125 from NXP Semiconductors is a 3.6 V fixed-output, 300 mA ultra-low-dropout linear regulator in SOT753 (SOT23-5 compatible) 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 low-noise power for voltage-sensitive analog circuits in space-constrained portable electronics.
For engineers reviewing the LD6836TD/36H,125 datasheet, LD6836TD/36H,125 pinout, LD6836TD/36H,125 application, or LD6836TD/36H,125 equivalent, this page provides verified electrical specs, SOT753 terminal mapping, high-ohmic disable behavior, thermal derating guidance, and validated alternatives for mobile power rail design.
Technical Context
The LD6836TD/36H,125 implements a PMOS pass transistor architecture enabling ultra-low dropout (100 mV typ. @ 300 mA) and fast 150 µs startup time. Its internal reference and error amplifier maintain ±2% output accuracy over −40 °C to +85 °C ambient, with line regulation of ±0.1 %/V and load regulation of 0.0025 %/mA.
It integrates over-temperature shutdown (160 °C trip, 20 K hysteresis), current limiting (600 mA short-circuit), and 10 kV HBM ESD protection. The active-HIGH enable pin (VIH ≥ 1.1 V) places the output in high-ohmic (3-state) mode when disabled-no auto-discharge function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.6 V ±2% over temperature and load; enables direct replacement of 3.6 V logic or analog rails without external feedback. |
| Dropout Voltage | 100 mV typical at 300 mA; allows operation with VIN as low as 3.7 V while maintaining regulation-critical for single-cell Li-ion or Li-poly systems. |
| PSRR | 55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding sensitive RF or audio circuitry. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); meets low-noise requirements for ADC references, PLL VCO supplies, and precision sensor interfaces. |
| Quiescent Current | 70–100 µA operating; drops to 0.1 µA in shutdown-extends battery life in always-on monitoring functions. |
| Enable Threshold | VIL ≤ 0.4 V, VIH ≥ 1.1 V; compatible with 1.8 V, 3.3 V, and 5 V GPIO control 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 (5-lead, 1.6 mm × 2.9 mm × 1.1 mm), RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Regulator input voltage | Accepts 2.3 V to 5.5 V; must be decoupled with ≥0.7 µF X7R ceramic capacitor close to pin. |
| 2 - GND | Supply ground | Primary return path; connect directly to PCB ground plane with low-inductance trace. |
| 3 - EN | Enable input (active HIGH) | Drives regulator ON when ≥1.1 V; pulls output to high-impedance state when <0.4 V. |
| 4 - n.c. | No connection | Internally unconnected; leave floating or tie to GND per layout best practice-no electrical function. |
| 5 - OUT | Regulated output voltage | Delivers up to 300 mA at 3.6 V; requires ≥0.7 µF output capacitance with 5–500 mΩ ESR for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 100 mV typical at 300 mA enables >95% efficiency at 3.6 V output from 3.7 V input-ideal for battery-powered systems. |
| High PSRR & low noise | 55 dB rejection at 1 kHz and 30 µVRMS noise ensure clean supply for RF transceivers and high-resolution data converters. |
| High-ohmic disable | EN = LOW places OUT in 3-state (high-Z) mode-prevents back-powering of upstream circuits or unintended loading during sleep. |
| Integrated protection | Thermal shutdown (160 °C), current limit (600 mA), and 10 kV HBM ESD eliminate need for external protection components. |
| SOT753 footprint | Packaged in industry-standard SOT23-5-compatible outline-enables drop-in replacement and leverages existing assembly infrastructure. |
Applications
| Smartphone Baseband Power | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Supplies 3.6 V bias to CMOS image sensor analog front-end and ISP core in compact smartphone modules. IC Role / Device Role / Timing Role: Low-noise LDO providing regulated, ripple-free voltage to noise-sensitive pixel readout and ADC stages. Use Value: 30 µVRMS noise prevents fixed-pattern noise and quantization errors; 150 µs startup synchronizes with sensor initialization sequences. | Use Scenario: Powers high-speed serial interface (MIPI CSI-2) transmitter and PLL clock generator in DSLR and mirrorless cameras. IC Role / Device Role / Timing Role: Stable 3.6 V rail for LVDS/MIPI PHY blocks requiring tight voltage tolerance and low jitter injection. Use Value: ±2% output accuracy and 55 dB PSRR minimize timing jitter on serialized video links; SOT753 size fits tight camera module layouts. |
| Portable Media Player Audio Codec | Bluetooth LE SoC Core Supply |
Use Scenario: Delivers clean 3.6 V to stereo audio DAC, headphone amplifier, and analog filter stages in MP3/WMA players. IC Role / Device Role / Timing Role: Low-noise post-regulator for audio signal chain, isolating DAC from noisy system DC-DC sources. Use Value: 30 µVRMS noise ensures >105 dB SNR; high-ohmic disable prevents pop/click during playback pause transitions. | Use Scenario: Provides 3.6 V core voltage to Bluetooth 5.x SoC during active advertising, connection, and data transfer phases. IC Role / Device Role / Timing Role: Efficient, fast-starting LDO supporting dynamic voltage scaling and rapid wake-from-sleep cycles. Use Value: 100 mV dropout extends usable battery range; 150 µs startup meets BLE sub-millisecond latency requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0536PDBVR | 300 mA, 3.6 V fixed, 170 mV dropout (typ.), 25 µVRMS noise, SOT23-5 package | Higher dropout reduces efficiency in low-VIN scenarios; lower noise suits ultra-high-SNR audio | Select when lowest possible noise is critical and input headroom ≥3.77 V is guaranteed. |
| MCP1703T-3602E/MB | 250 mA, 3.6 V fixed, 600 mV dropout (typ.), 40 µVRMS noise, SOT23-5 package | Lower current rating and higher dropout limit use in high-load or low-input-voltage designs | Choose for cost-sensitive consumer applications where 250 mA and 4.2 V minimum VIN are acceptable. |
Compared with LD6836TD/36H,125, the TPS7A0536PDBVR offers lower noise but sacrifices 70 mV in dropout performance, while the MCP1703T-3602E/MB trades 50 mA current capacity and 500 mV higher dropout for broader vendor availability and lower unit cost.
Availability
LD6836TD/36H,125 is available at Aetrix Electronics and suitable for smartphone baseband power, digital camera sensor bias, portable media player audio codec, Bluetooth LE SoC core supply, and other portable electronics requiring stable component supply with low-noise, high-efficiency regulation.
Supply support for LD6836TD/36H,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 specializing in secure connectivity solutions for automotive, industrial, and consumer markets, with leadership in RF, analog, and power management ICs.
The LD6836 series was designed specifically for miniaturized portable electronics requiring ultra-low-noise, high-PSRR, and space-efficient LDO regulation-targeting smartphones, wearables, and imaging modules.
FAQ
What is the maximum input voltage rating for LD6836TD/36H,125?
The absolute maximum input voltage for LD6836TD/36H,125 is +6.0 V for transient conditions up to 4 ms. Continuous operation must remain within the recommended range of 2.3 V to 5.5 V. Exceeding 6.0 V risks permanent damage to the internal PMOS pass device and reference circuitry. Always include input transient suppression if used in environments with inductive switching or hot-plug events.
Does LD6836TD/36H,125 support automatic output discharge when disabled?
No, LD6836TD/36H,125 does not provide auto-discharge functionality. As indicated by the "H" suffix, it features a high-ohmic (3-state) output during disable mode. When EN is pulled LOW, the OUT pin enters a high-impedance state-no internal pull-down transistor is present. External discharge circuitry must be added if rapid output voltage decay is required after shutdown.
What external capacitors are required for stable operation of LD6836TD/36H,125?
LD6836TD/36H,125 requires a minimum 0.7 µF X7R ceramic capacitor on both IN and OUT pins, with recommended value of 1.0 µF. Capacitor tolerance must be ±30% or better across −40 °C to +125 °C. Equivalent Series Resistance (ESR) must be between 5 mΩ and 500 mΩ. Use separate 1.0 µF capacitors placed as close as possible to each pin-do not share a single capacitor between IN and OUT.
How does the thermal performance of LD6836TD/36H,125 compare to WLCSP variants?
LD6836TD/36H,125 has a junction-to-ambient thermal resistance (Rth(j-a)) of 125 K/W, versus 130 K/W for the WLCSP4 variants. This 5 K/W improvement reflects the larger copper exposure and superior heat spreading capability of the SOT753 leadframe. At 300 mA and +85 °C ambient, the SOT753 package allows ~5 °C lower junction temperature under identical PCB layout conditions.
Is LD6836TD/36H,125 compatible with lead-free reflow soldering processes?
Yes, LD6836TD/36H,125 is qualified for lead-free reflow soldering per J-STD-020C. Its moisture sensitivity level (MSL) is Level 1 (unlimited floor life at ≤30 °C/60% RH). Peak reflow temperature must not exceed 260 °C for ≤30 seconds. The SOT753 package body thickness (1.1 mm) and volume fall into the <350 mm³ / <2.5 mm category, permitting a peak temperature of 235 °C in SnPb processes or 245–260 °C in lead-free profiles.
LD6836TD/36H,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):
- 3.6V
- 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/36H,125 FAQ
1.How can I place an order for LD6836TD/36H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836TD/36H,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/36H,125 reliable?
The price and inventory of LD6836TD/36H,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/36H,125 is usually 5 days.
3.What payment methods are accepted for LD6836TD/36H,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836TD/36H,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836TD/36H,125?
LD6836TD/36H,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836TD/36H,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/36H,125?
For technical support, including LD6836TD/36H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836TD/36H,125 requirements.
6.How does Aetrix verify that LD6836TD/36H,125 is sourced from the original manufacturer or authorized distributors?
All LD6836TD/36H,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/36H,125 meets industry standards.
7.What is the process for return or replacement of LD6836TD/36H,125?
All LD6836TD/36H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836TD/36H,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/36H,125 part is unused and in its original packaging.
Return procedure for LD6836TD/36H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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