My Inquiry
My Account
Analog Devices Inc. LT3008EDC-1.8#TRPBF
- Part No.:
- LT3008EDC-1.8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LT3008EDC-1.8#TRPBF.pdf
- Description:
- IC REG LINEAR 1.8V 20MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,623
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT3008EDC-1.8#TRPBF from Analog Devices (formerly Linear Technology) is a fixed-output 1.8V, 20mA low dropout linear regulator with ultralow 3μA quiescent current, 300mV dropout at full load, and reverse-battery protection - designed for keep-alive power in battery-backed utility meters and remote monitoring nodes.
For engineers reviewing the LT3008EDC-1.8#TRPBF datasheet, LT3008EDC-1.8#TRPBF pinout, LT3008EDC-1.8#TRPBF application, or LT3008EDC-1.8#TRPBF equivalent, this page delivers verified package mapping (6-lead DFN), thermal performance data (θJA = 65–85°C/W), ±2% output tolerance over line/load/temperature, and validated shutdown behavior (<1μA IQ in SHDN mode).
Technical Context
The LT3008EDC-1.8#TRPBF uses an internal PNP pass transistor architecture enabling stable regulation down to 300mV input-to-output differential at 20mA. Its error amplifier references the SENSE pin to GND at 600mV, delivering fixed 1.8V output via factory-trimmed feedback. No external resistors are required.
It integrates reverse-battery protection (blocks current flow when VIN < 0V), reverse-current blocking (prevents backfeed from VOUT to VIN), thermal shutdown, and current limiting - all active across –40°C to +125°C junction temperature range without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% over line, load, and –40°C to 125°C - ensures reliable biasing of 1.8V logic and RF front-end ICs. |
| Max Output Current | 20mA continuous - sufficient for microcontrollers in sleep mode, real-time clocks, and sensor signal chains. |
| Dropout Voltage | 300mV at 20mA - enables operation from single-cell LiFePO₄ (2.0V min) or two alkaline cells (2.4V min) with margin. |
| Quiescent Current | 3μA typical at no load - extends battery life in multi-year deployments (e.g., >10 years on CR2032 at 1μA avg load). |
| Shutdown Current | <1μA - eliminates standby drain during system hibernation, critical for energy-harvesting designs. |
| Input Voltage Range | 2.0V to 45V - supports wide-input industrial rails, automotive transients, and legacy 24V/48V systems. |
| Output Capacitor | Stable with ≥2.2μF ceramic (low ESR) - eliminates need for tantalum or electrolytic, reducing BOM cost and footprint. |
Pinout & Package
LT3008EDC-1.8#TRPBF is housed in a thermally enhanced 6-lead (2mm × 2mm) plastic DFN package with exposed GND pad (Pin 7). The package supports θJA = 65–85°C/W depending on PCB copper area and thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SHDN (Pin 1) | Active-low enable input | Pulling ≤0.61V disables output; tied to VIN if unused; drives <2μA leakage - compatible with open-drain GPIO. |
| GND (Pins 2, 3, 4) | Power ground reference | Three dedicated GND pins minimize ground impedance; exposed pad (Pin 7) must be soldered to PCB for thermal and electrical integrity. |
| IN (Pin 5) | Input power supply | Accepts 2.0–45V; withstands –50V reverse input - protects against battery reversal or negative transients. |
| SENSE (Pin 6) | Output voltage sense node | Connected internally to OUT for fixed versions; enables Kelvin sensing at load for precision regulation under trace resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow quiescent current | 3μA no-load IQ enables >10-year battery life in always-on IoT sensors and metering applications. |
| Reverse-battery protection | Blocks conduction when VIN < 0V - eliminates need for external series diode, saving 300mV forward drop and board space. |
| Reverse-current blocking | Prevents backfeed from VOUT to VIN during input loss - safeguards upstream power sources and prevents system latch-up. |
| Thermal & current limiting | Auto-recovery shutdown at TJ > 125°C and foldback current limit at ~75mA - ensures robustness in unventilated enclosures. |
| Stability with ceramic caps | Operates with ≥2.2μF X5R/X7R ceramics - avoids aging, polarity, and ESR drift issues of tantalum/electrolytic capacitors. |
Applications
| Smart Utility Metering | Remote Environmental Sensor Node |
|---|---|
Use Scenario: Long-life battery-powered electricity/water/gas meter with real-time clock, metrology ASIC, and RF wake-up circuitry. IC Role / Device Role / Timing Role: Primary 1.8V keep-alive rail powering RTC and nonvolatile memory during main power outage. Use Value: 3μA IQ extends CR123A battery life beyond 15 years; reverse-battery protection prevents damage during field battery replacement. | Use Scenario: Solar-charged soil moisture/temperature node deployed in agricultural fields with seasonal dormancy. IC Role / Device Role / Timing Role: Low-noise 1.8V supply for ADC reference and ultra-low-power MCU in deep-sleep mode. Use Value: 92μVRMS output noise ensures sub-LSB ADC accuracy; 300mV dropout allows operation down to 2.1V solar panel voltage. |
| Industrial PLC I/O Module | Automotive Body Control Module |
Use Scenario: DIN-rail mounted programmable logic controller with isolated analog inputs and CAN interface. IC Role / Device Role / Timing Role: Secondary 1.8V rail for isolated digital isolators and level-shifting logic. Use Value: 45V max input withstands 24V system transients (ISO 7637-2 Pulse 1/2a); ±2% tolerance guarantees logic-level compatibility. | Use Scenario: Door module with LIN transceiver, LED drivers, and window position sensor. IC Role / Device Role / Timing Role: Always-on 1.8V supply for LIN PHY and EEPROM during vehicle sleep (CAN/LIN bus off). Use Value: <1μA shutdown current meets OEM "microampere sleep" requirements; –40°C to +125°C rating covers under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TNPS1818D-1.8 | Higher IQ (12μA), lower max input (20V), no reverse-battery protection | Suitable only for non-battery-reversal consumer applications with tighter input voltage constraints | Select if cost is primary concern and reverse protection is handled externally |
| MCP1703T-1802E/MB | Similar IQ (1.6μA), lower dropout (280mV @ 250mA), but rated only to 16V input and lacks reverse-current blocking | Better for high-current, low-dropout needs in 12V automotive subsystems without reverse-battery risk | Choose when higher output current (>20mA) is needed and input stays below 16V |
Compared with TNPS1818D-1.8 and MCP1703T-1802E/MB, the LT3008EDC-1.8#TRPBF uniquely combines 45V input tolerance, reverse-battery protection, and sub-3μA IQ - making it the only option qualified for long-life, field-deployed, battery-reversible applications like smart meters and remote telemetry.
Availability
LT3008EDC-1.8#TRPBF is available at Aetrix Electronics and suitable for smart utility metering, remote environmental sensor nodes, industrial PLC I/O modules, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for LT3008EDC-1.8#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 legacy of high-performance analog ICs for precision power, signal conditioning, and timing.
The LT3008 series was designed specifically for ultralow-power, high-reliability applications where battery longevity, reverse-voltage resilience, and wide-input operation are mandatory - including metering, industrial sensing, and automotive keep-alive circuits.
FAQ
What is the maximum input voltage rating for the LT3008EDC-1.8#TRPBF?
The LT3008EDC-1.8#TRPBF has an absolute maximum input voltage rating of ±50V on the IN pin, with a recommended operating range of 2.0V to 45V. This 45V upper limit ensures safe operation in 24V industrial systems subject to ISO 7637-2 transient pulses and 48V telecom backup rails. Exceeding 45V may trigger internal protection but is not guaranteed for continuous operation.
Does the LT3008EDC-1.8#TRPBF require an external resistor divider to set the output voltage?
No, the LT3008EDC-1.8#TRPBF is a fixed-output variant with factory-trimmed feedback. It delivers 1.8V without any external resistors. The SENSE pin (Pin 6) connects internally to OUT for regulation; external Kelvin sensing is optional for improved load regulation but not required for basic operation.
How does the LT3008EDC-1.8#TRPBF behave during reverse-battery connection?
When VIN is driven below GND (e.g., battery inserted backward), the LT3008EDC-1.8#TRPBF blocks current flow into the IN pin - acting like a series diode with zero forward conduction. No reverse current flows to the load, and VOUT remains at 0V. This behavior is inherent to the internal architecture and requires no external components.
Can the LT3008EDC-1.8#TRPBF be used with a 2.2μF X5R ceramic capacitor?
Yes, the LT3008EDC-1.8#TRPBF is explicitly characterized for stability with ≥2.2μF X5R or X7R ceramic output capacitors. Unlike many older LDOs, it does not require added ESR and remains unconditionally stable across temperature and DC bias - confirmed by manufacturer testing and typical performance curves in the datasheet.
What is the thermal resistance (θJA) of the LT3008EDC-1.8#TRPBF in its DFN package?
The LT3008EDC-1.8#TRPBF in the 6-lead (2mm × 2mm) DFN package has a junction-to-ambient thermal resistance (θJA) ranging from 65°C/W to 85°C/W, depending on PCB layout - specifically, the amount of copper area connected to the exposed GND pad (Pin 7) and number of thermal vias. Full datasheet characterization assumes 2-inch² 2-oz copper with 4× thermal vias.
LT3008EDC-1.8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 20mA
- Current - Output:
- 20mA
- Current - Quiescent (Iq):
- 6 µA
- Current - Supply (Max):
- 1.2 mA
- PSRR:
- 64dB (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:
- 6-DFN (2x2)
LT3008EDC-1.8#TRPBF FAQ
1.How can I place an order for LT3008EDC-1.8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT3008EDC-1.8#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 LT3008EDC-1.8#TRPBF reliable?
The price and inventory of LT3008EDC-1.8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT3008EDC-1.8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT3008EDC-1.8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT3008EDC-1.8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT3008EDC-1.8#TRPBF?
LT3008EDC-1.8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT3008EDC-1.8#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 LT3008EDC-1.8#TRPBF?
For technical support, including LT3008EDC-1.8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT3008EDC-1.8#TRPBF requirements.
6.How does Aetrix verify that LT3008EDC-1.8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT3008EDC-1.8#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 LT3008EDC-1.8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT3008EDC-1.8#TRPBF?
All LT3008EDC-1.8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT3008EDC-1.8#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 LT3008EDC-1.8#TRPBF part is unused and in its original packaging.
Return procedure for LT3008EDC-1.8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT3008EDC-1.8#TRPBF Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
