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Analog Devices Inc. LT1962EMS8-1.5#TRPBF
- Part No.:
- LT1962EMS8-1.5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT1962EMS8-1.5#TRPBF.pdf
- Description:
- IC REG LINEAR 1.5V 300MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,465
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Product details
Overview
LT1962EMS8-1.5#TRPBF from Analog Devices (formerly Linear Technology) is a fixed-output 1.5V, 300mA low-dropout linear regulator with micropower quiescent current (30µA), 270mV dropout at full load, and ultra-low 20µVRMS output noise (10Hz–100kHz) when paired with a 0.01µF bypass capacitor. It is designed for noise-sensitive, battery-powered systems such as portable instrumentation and cellular baseband power rails.
For engineers reviewing the LT1962EMS8-1.5#TRPBF datasheet, LT1962EMS8-1.5#TRPBF pinout, LT1962EMS8-1.5#TRPBF application, or LT1962EMS8-1.5#TRPBF equivalent, key selection criteria include guaranteed 1.5V ±1.5% output accuracy over –40°C to 125°C, stability with ≥3.3µF ceramic output capacitors, reverse battery protection, and shutdown current <1µA - all in an 8-lead MSOP package.
Technical Context
The LT1962EMS8-1.5#TRPBF employs a precision bandgap reference and error amplifier with Kelvin-sense capability via the SENSE pin, enabling accurate regulation at the load despite PCB trace resistance. Its internal architecture integrates reverse-battery protection and reverse-current blocking without external diodes.
It operates across a 1.8V to 20V input range, maintains regulation down to 270mV VIN–VOUT differential at 300mA, and achieves 55–65dB ripple rejection at 120Hz while consuming only 30µA quiescent current - critical for multi-day battery life in always-on sensor nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1.5% over –40°C to 125°C; ensures stable core voltage for low-power microcontrollers. |
| Max Output Current | 300mA continuous; supports moderate-power analog front-ends or RF ICs without thermal derating in MSOP. |
| Dropout Voltage | 270mV at 300mA; enables operation from single-cell Li-ion (3.0V min) down to 1.77V input while maintaining regulation. |
| Quiescent Current | 30µA typical; extends battery life in sleep-mode applications (e.g., >1 year on CR2032). |
| Output Noise | 20µVRMS (10Hz–100kHz) with 0.01µF BYP cap; meets stringent SNR requirements for ADCs and precision op-amps. |
| Input Voltage Range | 1.8V to 20V; accommodates wide-input industrial supplies and unregulated wall adapters. |
| Shutdown Current | <1µA; eliminates standby drain in systems requiring deep-sleep wake-on-interrupt functionality. |
Pinout & Package
Package: 8-lead plastic MSOP (3mm × 3mm, 0.65mm pitch), rated for –40°C to 125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output | Delivers 1.5V to load; requires ≥3.3µF ceramic capacitor for stability; supports Kelvin sensing via SENSE pin. |
| 2 - SENSE | Voltage sense input | Connects to OUT for standard operation; ties to remote load point to compensate for PCB IR drop and maintain accuracy at load. |
| 3 - BYP | Reference bypass | Accepts 0.01µF capacitor to reduce output noise to 20µVRMS; must be left open if unused. |
| 4 - GND | Power ground | Return path for load current and internal circuitry; separate from IN/OUT ground paths in high-PSRR layouts. |
| 5 - SHDN | Active-low enable | Pull low to disable output (IQ < 1µA); compatible with 3.3V/5V logic; requires pull-up if driven by open-collector. |
| 6, 7 - NC | No connect | Not internally bonded; may be tied to PCB ground plane to improve thermal dissipation. |
| 8 - IN | Input supply | Accepts 1.8V–20V; includes reverse-battery protection - no external diode needed even with inverted battery insertion. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 20µVRMS output noise (10Hz–100kHz) with 0.01µF BYP cap - enables clean power for 16-bit+ SAR ADCs. |
| Reverse battery protection | Withstands –20V on IN pin without damage or reverse current - eliminates need for series input diode and its 0.3V drop. |
| Stable with small ceramics | Guaranteed stable with ≥3.3µF X7R/X5R ceramic output caps - reduces BOM count vs. tantalum/aluminum alternatives. |
| Load-independent quiescent current | 30µA IQ remains constant from 0mA to 300mA load - simplifies battery life estimation across operating modes. |
| Thermal & current limiting | Integrated foldback current limit and thermal shutdown prevent damage during sustained overload or poor heatsinking. |
Applications
| Portable Medical Sensors | Industrial IoT Edge Nodes |
|---|---|
Use Scenario: Powering low-power ECG front-end amplifiers and 24-bit delta-sigma ADCs in handheld patient monitors. IC Role / Device Role / Timing Role: Primary 1.5V analog supply rail regulator with ultra-low noise and high PSRR to preserve signal integrity. Use Value: 20µVRMS noise prevents degradation of >110dB SNR in biopotential measurements; 30µA IQ enables multi-week battery operation. | Use Scenario: Supplying 1.5V logic and RF transceiver bias in battery-operated wireless vibration sensors deployed in factory machinery. IC Role / Device Role / Timing Role: Main system LDO delivering regulated power to ARM Cortex-M0+ MCU and sub-GHz transceiver during periodic wake/sleep cycles. Use Value: <1µA shutdown current extends 2xAA alkaline battery life beyond 5 years; reverse-battery protection prevents field failure during battery replacement. |
| Cellular Baseband Power | Low-Power Precision Instrumentation |
Use Scenario: Providing clean 1.5V supply to LTE/5G modem baseband processors in compact mobile hotspots. IC Role / Device Role / Timing Role: Secondary LDO post-regulator filtering switching converter ripple before sensitive digital baseband circuits. Use Value: 65dB ripple rejection at 120Hz suppresses SMPS-induced spurs; 8-lead MSOP footprint minimizes PCB area in space-constrained modules. | Use Scenario: Biasing low-noise JFET-input op-amps and reference buffers in handheld multimeters and calibration equipment. IC Role / Device Role / Timing Role: Ultra-stable analog supply generator ensuring <0.01% gain drift and minimal offset voltage drift over temperature. Use Value: 1.5V ±1.5% accuracy and <10µV/°C drift guarantee metrology-grade performance; Kelvin sense maintains regulation at measurement terminals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSS721AIDR | Fixed 1.5V output, 250mA max, 220mV dropout, 38µA IQ, no BYP pin for noise reduction. | Lacks 0.01µF bypass capability → higher output noise (≈45µVRMS); unsuitable for ADC/DAC reference rails. | Select only when ultra-low noise is not required and cost is primary constraint. |
| MCP1703T-1502E/MB | Fixed 1.5V, 250mA, 600mV dropout, 2.5µA IQ, no reverse-battery protection. | Higher dropout limits use with single-cell Li-ion; requires external reverse-polarity diode. | Prefer for ultra-low-power sleep applications where input voltage stays >2.1V and reverse protection is handled externally. |
Compared with TSS721AIDR and MCP1703T-1502E/MB, the LT1962EMS8-1.5#TRPBF uniquely combines 300mA drive, 270mV dropout, 20µVRMS noise, and reverse-battery protection in one 8-pin MSOP - making it the only choice for compact, battery-powered, noise-critical analog systems requiring robustness and long runtime.
Availability
LT1962EMS8-1.5#TRPBF is available at Aetrix Electronics and suitable for portable medical sensors, industrial IoT edge nodes, and low-power precision instrumentation requiring stable component supply with full traceability and extended lifecycle support.
Supply support for LT1962EMS8-1.5#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT1962 series belongs to Linear's precision micropower LDO family, engineered specifically for battery-powered and noise-sensitive applications where low IQ, low noise, and robust protection features are non-negotiable.
FAQ
What is the guaranteed output voltage tolerance for LT1962EMS8-1.5#TRPBF over temperature?
The LT1962EMS8-1.5#TRPBF guarantees output voltage within ±1.5% of 1.5V (i.e., 1.4775V to 1.5225V) across the full –40°C to 125°C operating junction temperature range, as confirmed in the Electrical Characteristics table under "Regulated Output Voltage" for LT1962-1.5.
Can LT1962EMS8-1.5#TRPBF operate with a 1.6V input voltage?
No. The LT1962EMS8-1.5#TRPBF has a minimum operating input voltage of 1.8V per the datasheet Absolute Maximum and Electrical Characteristics tables. At 1.6V input, the device cannot regulate - output collapses and internal circuitry may not power up reliably.
Does LT1962EMS8-1.5#TRPBF require an external bypass capacitor on the BYP pin to achieve 20µVRMS noise?
Yes. The 20µVRMS output noise specification (10Hz–100kHz) is measured with a 0.01µF capacitor connected between OUT and BYP pins. Without this capacitor, typical output noise rises to ≈100µVRMS, as shown in Figure G49 and G51 of the datasheet.
Is LT1962EMS8-1.5#TRPBF pin-compatible with other fixed-output variants in the LT1962 series?
Yes. All fixed-output LT1962 variants (e.g., LT1962EMS8-1.8#TRPBF, LT1962EMS8-3.3#TRPBF) share identical 8-lead MSOP pinout, thermal pad layout, and PCB footprint - enabling design reuse across voltage options without layout changes.
What protection features are integrated into LT1962EMS8-1.5#TRPBF?
The LT1962EMS8-1.5#TRPBF integrates reverse battery protection (±20V on IN), reverse current blocking, thermal shutdown, and current limiting. These eliminate the need for external protection diodes or fuses in battery-powered designs, reducing solution size and cost.
LT1962EMS8-1.5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.43V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 65dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LT1962EMS8-1.5#TRPBF FAQ
1.How can I place an order for LT1962EMS8-1.5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1962EMS8-1.5#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 LT1962EMS8-1.5#TRPBF reliable?
The price and inventory of LT1962EMS8-1.5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1962EMS8-1.5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1962EMS8-1.5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1962EMS8-1.5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1962EMS8-1.5#TRPBF?
LT1962EMS8-1.5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1962EMS8-1.5#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 LT1962EMS8-1.5#TRPBF?
For technical support, including LT1962EMS8-1.5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1962EMS8-1.5#TRPBF requirements.
6.How does Aetrix verify that LT1962EMS8-1.5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1962EMS8-1.5#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 LT1962EMS8-1.5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1962EMS8-1.5#TRPBF?
All LT1962EMS8-1.5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1962EMS8-1.5#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 LT1962EMS8-1.5#TRPBF part is unused and in its original packaging.
Return procedure for LT1962EMS8-1.5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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