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Analog Devices Inc. LT3007ITS8-3.3#TRPBF
- Part No.:
- LT3007ITS8-3.3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LT3007ITS8-3.3#TRPBF.pdf
- Description:
- IC REG LINEAR 3.3V 20MA TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,516
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Product details
Overview
LT3007ITS8-3.3#TRPBF from Analog Devices (formerly Linear Technology) is a 3.3V fixed-output, 20mA micropower low dropout linear regulator in an 8-lead TSOT-23 package. It delivers ultralow 3µA quiescent current, 300mV dropout at full load, ±2% output tolerance over line/load/temperature, and reverse-battery/reverse-current protection - ideal for battery-powered utility meters and remote monitoring nodes requiring long standby life.
For engineers reviewing the LT3007ITS8-3.3#TRPBF datasheet, LT3007ITS8-3.3#TRPBF pinout, LT3007ITS8-3.3#TRPBF application, or LT3007ITS8-3.3#TRPBF equivalent, key selection criteria include its FMEA fault-tolerant behavior during adjacent-pin shorts, Kelvin-sense capability for precision regulation, shutdown current <1µA, compatibility with 2.2µF ceramic output capacitors, and operation across –40°C to 125°C.
Technical Context
The LT3007ITS8-3.3#TRPBF uses a PNP pass transistor architecture enabling low dropout and high PSRR (47dB at 120Hz). Its error amplifier references the SENSE pin (not OUT), supporting remote sensing to compensate for PCB trace resistance - critical in low-voltage, high-accuracy keep-alive supplies.
Internal protection includes thermal shutdown, current limiting (22mA min), reverse-battery protection (±50V IN-to-GND), and reverse-output current blocking (<10µA at VOUT = 1.2V, VIN = 0). The device remains stable without added ESR, eliminating need for tantalum or aluminum electrolytic capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±2% over load, line, and temperature - ensures reliable logic-level supply for microcontrollers and sensors. |
| Max Output Current | 20mA - sufficient for ultra-low-power MCUs, RTCs, and sensor signal chains without external boost. |
| Dropout Voltage | 300mV at 20mA - enables regulation from 3.6V input (e.g., single Li-ion cell) down to 3.3V output. |
| Quiescent Current | 3µA at no load - extends battery life in multi-year deployments like smart metering. |
| Shutdown Current | <1µA - reduces system leakage to negligible levels during deep sleep modes. |
| Input Voltage Range | 2.0V to 45V - supports wide-input industrial rails, automotive cold-crank, and legacy 24V systems. |
| Output Capacitor | Min 2.2µF ceramic (ESR ≤3Ω) - eliminates need for costly, bulky, or aging-prone electrolytics. |
Pinout & Package
LT3007ITS8-3.3#TRPBF is housed in an 8-lead plastic TSOT-23 package with exposed pad for thermal enhancement. Pin 6 is NC (no connect); pins 2, 3, and 4 are internally bonded GND terminals to minimize ground impedance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SHDN (1) | Active-low enable | Pulling below 0.61V turns off output; <1µA shutdown current; must be tied to VIN if unused. |
| GND (2,3,4) | Power ground | Three dedicated GND pins reduce ground loop impedance and improve noise immunity in sensitive analog sections. |
| IN (5) | Input supply | Accepts 2V–45V; reverse-battery protected - survives –45V input without damage or reverse current. |
| NC (6) | No connect | Floating per LTC recommendation for fault-tolerant operation; not internally connected. |
| OUT (7) | Regulated output | 3.3V source; requires ≥2.2µF ceramic capacitor at pin for stability; supports Kelvin sense via SENSE pin. |
| SENSE (8) | Feedback reference | Connected to OUT for standard use; routed to load point for remote sensing to cancel trace IR drop. |
Key Features
| Feature | Design Value |
|---|---|
| FMEA fault tolerance | Output remains ≤3.3V during adjacent-pin short or floating pin - prevents downstream overvoltage in safety-critical systems. |
| Kelvin sense capability | SENSE pin allows remote feedback placement at load - eliminates regulation error from PCB trace resistance up to ~100mΩ. |
| Reverse-battery protection | Blocks reverse current flow when input polarity is inverted - protects battery and load without external diode. |
| Ultralow IQ with shutdown | 3µA operating / <1µA shutdown - enables >10-year battery life in 10µA average-load applications. |
| Stable with low-ESR ceramics | No ESR requirement - avoids capacitor aging, leakage, and size penalties of tantalum/electrolytic alternatives. |
Applications
| Smart Utility Meters | Remote Environmental Sensors |
|---|---|
Use Scenario: Long-life battery-powered electricity/water/gas meter with real-time clock, metrology IC, and RF transceiver. IC Role / Device Role / Timing Role: Primary 3.3V keep-alive supply powering RTC and nonvolatile memory during main power loss. Use Value: 3µA quiescent current enables >15-year battery life; reverse-battery protection prevents damage during battery replacement. | Use Scenario: Solar-charged wireless node measuring temperature, humidity, and air quality in unattended field locations. IC Role / Device Role / Timing Role: Low-noise 3.3V bias for precision ADCs and low-power MCU during intermittent wake cycles. Use Value: 92µVRMS output noise and ±2% accuracy ensure sub-LSB measurement integrity; 2.2µF ceramic support simplifies layout. |
| Automotive Body Electronics | Industrial IoT Edge Nodes |
Use Scenario: Door module or seat controller with wake-on-LIN functionality and EEPROM backup. IC Role / Device Role / Timing Role: Always-on 3.3V rail maintaining microcontroller context and secure key storage during vehicle sleep. Use Value: –40°C to 125°C rating meets AEC-Q100 Grade I requirements; 45V max input handles load-dump transients up to ISO 7637-2 Pulse 1. | Use Scenario: DIN-rail mounted condition monitor collecting vibration, temperature, and current data in factory settings. IC Role / Device Role / Timing Role: Isolated 3.3V supply for isolated RS-485 transceiver and ARM Cortex-M4 MCU core. Use Value: TSOT-23 footprint minimizes board area; fault tolerance prevents latch-up during ESD events on field wiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3302E/MB | 3.3V fixed, 250mA output, 2µA IQ, but only 6V max input and no reverse-battery protection. | Suitable for low-voltage consumer devices; unsuitable for 24V industrial or automotive inputs. | Select when higher output current is needed and input voltage stays below 6V. |
| TNIV5033002RA | 3.3V fixed, 200mA, 2.5µA IQ, 42V max input, but lacks Kelvin sense and FMEA fault tolerance. | Meets basic industrial input range needs but cannot compensate for PCB trace losses or survive pin-float faults. | Select when cost is primary and remote sensing/fault tolerance are not required. |
Compared with MCP1703T-3302E/MB and TNIV5033002RA, the LT3007ITS8-3.3#TRPBF uniquely combines 45V input tolerance, true FMEA compliance, and Kelvin sensing in a 20mA micropower package - making it irreplaceable for safety-critical, wide-input, precision-regulation applications where reliability outweighs raw current capability.
Availability
LT3007ITS8-3.3#TRPBF is available at Aetrix Electronics and suitable for smart utility meters, remote environmental sensors, and automotive body electronics requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LT3007ITS8-3.3#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-reliability analog portfolio. Linear pioneered precision power management ICs with robust protection and specification rigor.
The LT3007 series was designed specifically for ultra-low-power, fault-tolerant applications in battery-backed instrumentation, remote sensing, and automotive subsystems where longevity and fail-safe behavior are mandatory.
FAQ
What is the maximum input voltage rating for LT3007ITS8-3.3#TRPBF?
The LT3007ITS8-3.3#TRPBF has an absolute maximum input voltage of ±50V on the IN pin, with continuous operational rating up to 45V. This allows safe use in 24V industrial systems and automotive environments subject to load-dump transients, provided thermal limits are observed per the θJA spec.
Does LT3007ITS8-3.3#TRPBF require an external resistor divider for 3.3V output?
No - LT3007ITS8-3.3#TRPBF is a fixed-output variant. The 3.3V regulation is achieved internally; no external resistors are needed. The SENSE pin is used for optional Kelvin sensing but does not require external components for basic operation.
Can LT3007ITS8-3.3#TRPBF operate with only a 2.2µF output capacitor?
Yes - the LT3007ITS8-3.3#TRPBF is explicitly characterized for stability with a minimum 2.2µF ceramic capacitor (ESR ≤3Ω). Unlike many LDOs, it imposes no minimum ESR requirement, eliminating need for series resistors or specialized capacitor types.
What happens to the output of LT3007ITS8-3.3#TRPBF if the SHDN pin is left floating?
The LT3007ITS8-3.3#TRPBF will not function if the SHDN pin is left floating. Per datasheet guidance, SHDN must be tied to VIN for normal operation. Floating SHDN violates the device's enable logic and may cause undefined output behavior or failure to regulate.
Is LT3007ITS8-3.3#TRPBF qualified for automotive applications?
Yes - the "I" grade in LT3007ITS8-3.3#TRPBF denotes –40°C to +125°C operating junction temperature, meeting AEC-Q100 Grade 2 requirements. Its reverse-battery protection, fault-tolerant pin behavior, and 45V input rating make it suitable for body electronics and infotainment backup supplies.
LT3007ITS8-3.3#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 20mA
- Current - Output:
- 20mA
- Current - Quiescent (Iq):
- 6 µA
- Current - Supply (Max):
- -
- PSRR:
- 59dB (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:
- TSOT-23-8
LT3007ITS8-3.3#TRPBF FAQ
1.How can I place an order for LT3007ITS8-3.3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT3007ITS8-3.3#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 LT3007ITS8-3.3#TRPBF reliable?
The price and inventory of LT3007ITS8-3.3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT3007ITS8-3.3#TRPBF is usually 5 days.
3.What payment methods are accepted for LT3007ITS8-3.3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT3007ITS8-3.3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT3007ITS8-3.3#TRPBF?
LT3007ITS8-3.3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT3007ITS8-3.3#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 LT3007ITS8-3.3#TRPBF?
For technical support, including LT3007ITS8-3.3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT3007ITS8-3.3#TRPBF requirements.
6.How does Aetrix verify that LT3007ITS8-3.3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT3007ITS8-3.3#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 LT3007ITS8-3.3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT3007ITS8-3.3#TRPBF?
All LT3007ITS8-3.3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT3007ITS8-3.3#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 LT3007ITS8-3.3#TRPBF part is unused and in its original packaging.
Return procedure for LT3007ITS8-3.3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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