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Analog Devices Inc. LT1763MPDE-5#TRPBF
- Part No.:
- LT1763MPDE-5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
LT1763MPDE-5#TRPBF.pdf
- Description:
- IC REG LINEAR 5V 500MA 12DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,368
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Product details
Overview
LT1763MPDE-5#TRPBF from Analog Devices (formerly Linear Technology) is a 5V fixed-output, 500mA low-noise LDO regulator in a 12-lead DFN package. It delivers 20µVRMS output noise (10Hz–100kHz), 30µA quiescent current, and 300mV dropout at 500mA - optimized for battery-powered instrumentation and noise-sensitive analog circuits.
For engineers reviewing the LT1763MPDE-5#TRPBF datasheet, LT1763MPDE-5#TRPBF pinout, LT1763MPDE-5#TRPBF application, or LT1763MPDE-5#TRPBF equivalent, key selection criteria include guaranteed –55°C to 125°C operation, reverse battery protection, stability with 3.3µF ceramic output capacitors, and 1.22V reference accuracy for precision voltage regulation.
Technical Context
The LT1763MPDE-5#TRPBF uses a micropower bandgap reference and error amplifier architecture with internal bypass capacitor control via the BYP pin. Its low-noise performance relies on external 0.01µF capacitor coupling between OUT and BYP, reducing RMS noise to 20µV across 10Hz–100kHz.
It integrates reverse battery protection, thermal shutdown, current limiting (520mA typical), and reverse current blocking - eliminating need for external diodes. The SENSE pin enables Kelvin sensing for high-accuracy load regulation, while SHDN supports logic-controlled shutdown with <1µA quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.00V ±2.5% over full temperature range - ensures stable rail for ADCs, op-amps, and RF front-ends. |
| Max Output Current | 500mA - sufficient for powering multiple analog ICs or microcontroller peripherals without thermal derating at TJ ≤ 125°C. |
| Dropout Voltage | 300mV at 500mA - allows operation down to VIN = 5.3V, extending battery life in single-cell Li-ion or dual-cell alkaline systems. |
| Output Noise | 20µVRMS (10Hz–100kHz) with 0.01µF BYP cap - meets stringent requirements for PLLs, audio codecs, and precision sensor signal chains. |
| Quiescent Current | 30µA - enables multi-year operation in always-on IoT sensors and portable medical devices. |
| Input Voltage Range | 1.8V to 20V - supports wide input sources including unregulated wall adapters, automotive batteries, and industrial DC rails. |
| Operating Temp | –55°C to 125°C (MP grade) - qualified for aerospace, downhole, and military applications requiring extended thermal reliability. |
Pinout & Package
LT1763MPDE-5#TRPBF is housed in a 12-lead (4mm × 3mm × 0.75mm) plastic DFN package with exposed thermal pad (Pin 13 = GND). The package supports high-power dissipation (θJC = 5°C/W) and requires soldering of the exposed pad to PCB ground for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 10) | Input Supply | Accepts 1.8V–20V input; internal reverse-battery protection prevents damage if polarity is reversed. |
| OUT (Pins 2,3) | Regulated Output | Delivers 5V/500mA; requires ≥3.3µF ceramic output capacitor for stability and transient response. |
| SENSE (Pin 5) | Output Voltage Sense | Connects to load-side output for Kelvin sensing - eliminates PC trace IR drop errors in precision applications. |
| BYP (Pin 6) | Reference Bypass | Accepts 0.01µF capacitor to OUT to reduce output noise to 20µVRMS; must be left open if unused. |
| GND (Pins 7,13) | Ground Reference | Exposed pad (Pin 13) is electrically tied to Pin 7 - mandatory solder connection for thermal management and low-noise performance. |
| SHDN (Pin 8) | Shutdown Control | Active-low logic input; pulls output off with <1µA shutdown current - enables ultra-low-power sleep modes. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 20µVRMS output noise with 0.01µF BYP cap - enables clean power for RF synthesizers and high-resolution ADCs. |
| Reverse battery protection | No external diode required - prevents damage and leakage when input polarity is inverted, simplifying BOM and layout. |
| Stable with small ceramics | Works with ≥3.3µF X7R/X5R ceramic caps - eliminates ESR requirements and reduces board area vs. tantalum/aluminum solutions. |
| Wide input voltage range | Operates from 1.8V up to 20V - accommodates diverse supply sources including buck-boost outputs and legacy industrial rails. |
| MP-grade temperature rating | –55°C to 125°C guaranteed operation - supports deployment in extreme environments without derating or qualification overhead. |
Applications
| Portable Medical Sensors | Industrial Data Acquisition |
|---|---|
Use Scenario: Powering low-power ECG front-end amplifiers and 24-bit sigma-delta ADCs in handheld patient monitors. IC Role / Device Role / Timing Role: Primary 5V analog supply rail with ultra-low noise and tight load regulation to preserve SNR and offset stability. Use Value: 20µVRMS noise and 7mV load regulation (1mA–500mA) prevent signal corruption and enable sub-µV resolution measurements. | Use Scenario: Regulating power for isolated RS-485 transceivers and precision voltage references in factory-floor PLC modules. IC Role / Device Role / Timing Role: Post-regulator for isolated DC-DC outputs, providing clean, stable 5V for communication ICs and reference buffers. Use Value: Reverse current blocking and –55°C operation ensure reliable bus communication during cold-start and brownout conditions. |
| Aerospace Telemetry Units | Noise-Sensitive RF Receivers |
Use Scenario: Supplying 5V to radiation-tolerant microcontrollers and MEMS inertial sensors in satellite subsystems. IC Role / Device Role / Timing Role: Ruggedized LDO with MP-grade temp range and integrated thermal/current protection for mission-critical power domains. Use Value: Guaranteed –55°C to 125°C operation and no external protection components reduce failure modes and qualification burden. | Use Scenario: Biasing low-noise amplifiers (LNAs) and local oscillator (LO) buffers in SDR receivers and spectrum analyzers. IC Role / Device Role / Timing Role: Ultra-low-noise 5V source decoupled via BYP pin to suppress phase noise and spurious emissions. Use Value: 20µVRMS noise directly translates to <–160dBc/Hz phase noise floor improvement in LO synthesis paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A4700RGWR | 20µVRMS noise, 1A output, 2.2V–36V input, but 1.15V dropout at 1A - higher dropout than LT1763MPDE-5#TRPBF's 300mV at 500mA. | Targets higher-current systems; lacks MP-grade temp rating (only –40°C to 125°C). | Choose when >500mA load current is needed and wider input range justifies higher dropout and cost. |
| MCP1703T-5002E/MB | 5V fixed, 250mA output, 6µA IQ, but 600mV dropout at 250mA and no BYP pin - cannot achieve 20µVRMS noise. | Suitable only for ultra-low-IQ battery apps with relaxed noise specs; not rated below –40°C. | Choose only for cost-sensitive, low-current, non-military applications where noise <50µVRMS is acceptable. |
Compared with TPS7A4700RGWR and MCP1703T-5002E/MB, LT1763MPDE-5#TRPBF uniquely combines MP-grade temperature range, 500mA capability, 300mV dropout, and 20µVRMS noise in a single DFN package - making it irreplaceable for high-reliability, noise-critical embedded systems operating across extreme temperatures.
Availability
LT1763MPDE-5#TRPBF is available at Aetrix Electronics and suitable for portable medical sensors, industrial data acquisition, aerospace telemetry units, and noise-sensitive RF receivers requiring stable component supply across extended temperature ranges.
Supply support for LT1763MPDE-5#TRPBF 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
Analog Devices acquired Linear Technology in 2017 and maintains its high-performance analog product lines with rigorous testing and long-term manufacturing commitments.
The LT1763 series was designed specifically for battery-powered and noise-critical applications demanding micropower operation, ultra-low output noise, and robust protection features - all in compact DFN and SO packages.
FAQ
What is the guaranteed dropout voltage of LT1763MPDE-5#TRPBF at 500mA load current?
The LT1763MPDE-5#TRPBF guarantees a maximum dropout voltage of 450mV at 500mA across its full –55°C to 125°C operating junction temperature range, with a typical value of 300mV at 25°C. This ensures reliable 5V regulation even under worst-case thermal and load conditions.
Does LT1763MPDE-5#TRPBF require an external bypass capacitor to achieve 20µVRMS noise?
Yes, LT1763MPDE-5#TRPBF achieves 20µVRMS output noise (10Hz–100kHz) only when a 0.01µF capacitor is placed between the OUT and BYP pins. Without this capacitor, noise rises significantly - the BYP pin is internally clamped and must remain unconnected if unused.
Can LT1763MPDE-5#TRPBF be used with ceramic output capacitors smaller than 10µF?
Yes, LT1763MPDE-5#TRPBF is stable with ceramic output capacitors as small as 3.3µF - no ESR requirement. This enables use of compact, low-profile X7R/X5R MLCCs and eliminates need for bulkier tantalum or aluminum electrolytics.
What protection features are integrated into LT1763MPDE-5#TRPBF?
LT1763MPDE-5#TRPBF integrates reverse battery protection, thermal shutdown, current limiting (520mA typical), and reverse current blocking. These eliminate external protection diodes and simplify design for harsh or safety-critical environments.
Is the exposed thermal pad (Pin 13) on LT1763MPDE-5#TRPBF electrically connected?
Yes, the exposed pad (Pin 13) on LT1763MPDE-5#TRPBF is electrically connected to GND and must be soldered to the PCB ground plane. This connection is mandatory for both thermal performance (θJC = 5°C/W) and low-noise operation - floating or unconnected pads cause instability and increased noise.
LT1763MPDE-5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.45V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 65dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-DFN (4x3)
LT1763MPDE-5#TRPBF FAQ
1.How can I place an order for LT1763MPDE-5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1763MPDE-5#TRPBF 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 LT1763MPDE-5#TRPBF reliable?
The price and inventory of LT1763MPDE-5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1763MPDE-5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1763MPDE-5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1763MPDE-5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1763MPDE-5#TRPBF?
LT1763MPDE-5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1763MPDE-5#TRPBF 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 LT1763MPDE-5#TRPBF?
For technical support, including LT1763MPDE-5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1763MPDE-5#TRPBF requirements.
6.How does Aetrix verify that LT1763MPDE-5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1763MPDE-5#TRPBF 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 LT1763MPDE-5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1763MPDE-5#TRPBF?
All LT1763MPDE-5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1763MPDE-5#TRPBF, 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 LT1763MPDE-5#TRPBF part is unused and in its original packaging.
Return procedure for LT1763MPDE-5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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