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NXP Semiconductors LD6836TD/22H,125
- Part No.:
- LD6836TD/22H,125
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LD6836TD/22H,125.pdf
- Description:
- IC REG LINEAR 2.2V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,568
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Product details
Overview
LD6836TD/22H,125 from NXP Semiconductors is a 2.2 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 µV RMS output noise (10 Hz–100 kHz). It delivers stable low-noise power for RF and analog circuitry in space-constrained portable devices.
For engineers reviewing the LD6836TD/22H,125 datasheet, LD6836TD/22H,125 pinout, LD6836TD/22H,125 application, or LD6836TD/22H,125 equivalent, key selection criteria include its high-ohmic (3-state) output during disable mode, input voltage range of 2.3 V to 5.5 V, thermal shutdown at 160 °C, and RoHS-compliant SOT753 footprint compatible with SOT23-5 layouts.
Technical Context
The LD6836TD/22H,125 implements a PMOS pass transistor architecture enabling ultra-low dropout operation and inherent reverse-current blocking. Its enable input (active HIGH, VIH ≥ 1.1 V) controls a high-impedance output state when disabled - critical for power sequencing in multi-rail systems.
Internal protection includes over-temperature shutdown with 20 K hysteresis and current limiting (600 mA short-circuit rating), while its 0.1 µA quiescent current in shutdown supports battery-powered applications requiring long standby life. The device requires only a 1 µF ceramic output capacitor for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.2 V ±3 % over −40 °C to +85 °C ambient; enables direct replacement of 2.2 V logic or analog rails without external feedback. |
| Dropout Voltage | 100 mV typical at 300 mA; allows regulation from 2.3 V input down to 2.2 V output - essential 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 ADC sections. |
| Output Noise | 30 µV RMS (10 Hz–100 kHz); meets low-noise requirements for precision analog sensors and RF front-end biasing. |
| Quiescent Current | 0.1 µA typical in shutdown (VEN ≤ 0.4 V); minimizes battery drain in always-on monitoring circuits. |
| 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); supports 300 mA continuous operation up to +85 °C ambient with standard PCB copper area. |
Pinout & Package
SOT753 plastic surface-mounted package (5-lead, SC-74A compatible), 3.0 mm × 1.7 mm × 1.3 mm body size, lead pitch 0.95 mm, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator input voltage | Accepts 2.3 V–5.5 V supply; requires local 1 µF ceramic decoupling capacitor for stability. |
| 2 (GND) | Supply ground | Primary reference node; must connect directly to low-impedance ground plane to minimize noise coupling. |
| 3 (EN) | Device enable input | Active HIGH control; drives internal pass transistor - pull-down resistor required if left unconnected. |
| 4 (n.c.) | Not connected | No internal connection; must remain floating or grounded per layout best practice - not used for thermal relief. |
| 5 (OUT) | Regulator output voltage | Delivers regulated 2.2 V; high-ohmic (3-state) when EN = LOW - prevents backfeeding into powered-down subsystems. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 100 mV typical at 300 mA enables operation from weak or aging batteries without rail collapse. |
| Low-noise regulation | 30 µV RMS output noise ensures clean bias for RF transceivers and high-resolution ADCs. |
| High-ohmic disable | 3-state output isolates downstream circuitry during sleep mode - eliminates leakage paths in multi-voltage systems. |
| Integrated ESD protection | ±10 kV HBM rating protects against handling damage without requiring external TVS diodes. |
| Thermal & current safety | 160 °C shutdown with 20 K hysteresis and 600 mA short-circuit limit prevent thermal runaway under fault conditions. |
Applications
| Smartphone Baseband Power | Wearable Sensor Bias |
|---|---|
Use Scenario: Supplying 2.2 V to LTE/5G baseband processors during burst transmission cycles with tight voltage tolerance. IC Role / Device Role / Timing Role: Primary LDO delivering low-noise, sequenced power to digital baseband ICs with fast start-up (150 µs). Use Value: Maintains 2.2 V ±3 % under 300 mA dynamic load steps while rejecting ripple from shared PMIC switchers. | Use Scenario: Powering MEMS accelerometers and environmental sensors in compact fitness trackers. IC Role / Device Role / Timing Role: Standby-mode LDO providing ultra-low-quiescent (0.1 µA) 2.2 V bias during motion-triggered wake-up events. Use Value: Enables >1-year battery life by minimizing idle current while preserving fast 150 µs turn-on for responsive sensor sampling. |
| Portable Media Player Audio | Digital Still Camera Image Sensor |
Use Scenario: Generating clean 2.2 V for Class-D audio amplifiers and DACs in battery-powered media players. IC Role / Device Role / Timing Role: Low-noise LDO filtering switching noise from main system DC-DC converter to preserve SNR. Use Value: 30 µV RMS noise and 55 dB PSRR ensure >95 dB audio SNR without additional LC filtering. | Use Scenario: Supplying 2.2 V to CMOS image sensor analog front-end and timing controller in compact DSCs. IC Role / Device Role / Timing Role: Precision LDO delivering stable voltage during high-current pixel readout bursts. Use Value: 100 mV dropout allows use of single-cell Li-ion (3.0–4.2 V) as sole source, maximizing runtime without brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LD6836TD/22P | Same 2.2 V output and SOT753 package, but features integrated pull-down transistor (low-ohmic output when disabled). | Required where auto-discharge of output capacitance is needed after shutdown (e.g., fast power cycling). | Select LD6836TD/22P only if active discharge is mandatory; LD6836TD/22H,125 maintains high-impedance isolation. |
| Torex XC6219B222MR-G | 2.2 V fixed output, SOT-25 package, 150 mV dropout at 300 mA, 45 dB PSRR at 1 kHz, no integrated ESD protection. | Lacks ±10 kV HBM ESD rating and has higher dropout - less suitable for battery-edge or noisy environments. | Use XC6219B222MR-G only in cost-sensitive, non-handheld applications with robust board-level ESD design. |
Compared with LD6836TD/22P, LD6836TD/22H,125 provides superior isolation during disable mode; compared with XC6219B222MR-G, it offers lower dropout, higher PSRR, and factory-integrated ESD protection - making it optimal for portable, battery-powered, and RF-sensitive designs.
Availability
LD6836TD/22H,125 is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor bias, portable media player audio, and digital still camera image sensor applications requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for LD6836TD/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 specializing in secure connectivity solutions for automotive, industrial, and consumer electronics markets.
The LD6836 series was designed specifically for ultra-compact, low-noise, high-efficiency power management in portable and battery-operated devices - emphasizing miniaturization, thermal resilience, and seamless integration with modern PMIC architectures.
FAQ
What is the maximum input voltage rating for LD6836TD/22H,125?
The LD6836TD/22H,125 has an absolute maximum input voltage of +6.0 V for transient conditions up to 4 ms. Its recommended operating input range is 2.3 V to 5.5 V. Exceeding 6.0 V may cause permanent damage. Always verify input rail transients in the target application and consider clamping if necessary. The LD6836TD/22H,125 is not rated for sustained operation above 5.5 V.
Does LD6836TD/22H,125 require an external output capacitor, and what value is recommended?
Yes, LD6836TD/22H,125 requires an external ceramic output capacitor for stability. The datasheet specifies a minimum of 0.7 µF with ±30 % tolerance and recommends 1.0 µF X7R type. Equivalent Series Resistance (ESR) must be between 5 mΩ and 500 mΩ. Using less than 0.7 µF risks oscillation or poor transient response. The LD6836TD/22H,125 will not function reliably without this capacitor.
What is the shutdown behavior of LD6836TD/22H,125 when the EN pin is pulled low?
When the EN pin of LD6836TD/22H,125 is driven below 0.4 V (VIL), the device enters shutdown mode and places the OUT pin in a high-ohmic (3-state) condition - effectively disconnecting the output from the internal pass element. This prevents backfeeding and enables safe power sequencing. Quiescent current drops to 0.1 µA typical. The LD6836TD/22H,125 does not sink or source current at OUT during disable.
Can LD6836TD/22H,125 be used with a 1.8 V enable signal?
Yes, LD6836TD/22H,125 supports 1.8 V GPIOs directly: its VIH (HIGH threshold) is specified as ≥1.1 V, and VIL (LOW threshold) is ≤0.4 V. A 1.8 V logic HIGH fully satisfies the enable requirement, and the device draws only 70–100 µA quiescent current during normal operation. No level shifter is needed. The LD6836TD/22H,125 is compatible with common 1.8 V and 3.3 V microcontroller I/Os.
Is LD6836TD/22H,125 pin-compatible with other SOT753 LDOs such as the MCP1700 series?
No, LD6836TD/22H,125 is not pin-compatible with MCP1700-series devices. While both use SOT753 packages, the pin assignments differ: LD6836TD/22H,125 uses Pin 1=IN, Pin 2=GND, Pin 3=EN, Pin 4=n.c., Pin 5=OUT; MCP1700 uses Pin 1=GND, Pin 2=OUT, Pin 3=IN, Pin 4=n.c., Pin 5=EN. Swapping them would cause incorrect connections and potential damage. The LD6836TD/22H,125 requires its specific pinout layout.
LD6836TD/22H,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- 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):
- 0.2V @ 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/22H,125 FAQ
1.How can I place an order for LD6836TD/22H,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836TD/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 LD6836TD/22H,125 reliable?
The price and inventory of LD6836TD/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 LD6836TD/22H,125 is usually 5 days.
3.What payment methods are accepted for LD6836TD/22H,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836TD/22H,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836TD/22H,125?
LD6836TD/22H,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836TD/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 LD6836TD/22H,125?
For technical support, including LD6836TD/22H,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836TD/22H,125 requirements.
6.How does Aetrix verify that LD6836TD/22H,125 is sourced from the original manufacturer or authorized distributors?
All LD6836TD/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 LD6836TD/22H,125 meets industry standards.
7.What is the process for return or replacement of LD6836TD/22H,125?
All LD6836TD/22H,125 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836TD/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 LD6836TD/22H,125 part is unused and in its original packaging.
Return procedure for LD6836TD/22H,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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