My Inquiry
My Account
Texas Instruments LP3470IM5X-2.63/NOPB
- Part No.:
- LP3470IM5X-2.63/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LP3470IM5X-2.63/NOPB.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,048
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LP3470IM5X-2.63/NOPB from Texas Instruments is a micropower voltage supervisor IC with 2.63 V ±1% reset threshold, programmable reset time-out via external capacitor, open-drain active-low reset output, and operation down to VCC = 0.5 V - used for power-on-reset (POR) and brownout protection in microprocessor systems.
For engineers reviewing the LP3470IM5X-2.63/NOPB datasheet, LP3470IM5X-2.63/NOPB pinout, LP3470IM5X-2.63/NOPB application, or LP3470IM5X-2.63/NOPB equivalent, key selection criteria include reset threshold accuracy over temperature, low quiescent current (16 µA typ), immunity to short VCC transients, and SOT-23 (DBV) 5-pin package compatibility.
Technical Context
The LP3470IM5X-2.63/NOPB implements a precision bandgap-based voltage reference with hysteresis (35 mV typ) and an internal delay timer controlled by an external capacitor on the SRT pin. Its reset assertion logic is triggered when VCC falls below 2.63 V and remains asserted for a user-programmable interval after VCC recovers above threshold.
It features an open-drain N-channel MOSFET output requiring an external pullup resistor (0.68–68 kΩ), operates across –40°C to +85°C, and maintains reset validity even at VCC as low as 0.5 V - enabling reliable supervision during deep brownout or battery-depletion conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63 V ±1% over –40°C to +85°C - ensures precise power-rail monitoring without calibration. |
| Quiescent Current | 16 µA typical at 4.5 V - enables multi-year battery life in portable equipment. |
| Operating Voltage Range | 0.5 V to 5.5 V - supports supervision during ultra-low-VCC brownout and full-system power-up. |
| Hysteresis Voltage | 35 mV typical - prevents chatter during slow-rising/falling supply transitions. |
| Reset Delay Accuracy | tRP = 2000 × C1 (C1 in µF, tRP in ms) - allows precise POR timing from 1 ms to seconds using standard ceramic capacitors. |
| VCC to Reset Delay | 100 µs typical - guarantees fast fault detection for critical µP reset sequencing. |
| Output Type | Open-drain, active-low - compatible with mixed-voltage logic families and enables wired-OR reset bus configurations. |
Pinout & Package
LP3470IM5X-2.63/NOPB is housed in a 5-pin SOT-23 (DBV) package measuring 1.60 mm × 2.90 mm, with moisture sensitivity level (MSL) 1 and lead finish Sn (matte tin).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SRT | Reset time-out programming input | Connect external capacitor (C1) to GND; sets tRP = 2000 × C1 (ms); leave floating for minimal delay. |
| 2 - GND | Ground reference | Primary return path for internal reference and output stage; must be low-impedance. |
| 3 - VCC1 | Internal supply tie | Must be connected directly to VCC (Pin 4); not functional as independent input. |
| 4 - VCC | Supply and monitor input | Monitored voltage rail; powers device and triggers reset when < 2.63 V; valid down to 0.5 V. |
| 5 - Reset | Open-drain reset output | Active-low signal; requires external pullup (e.g., 20 kΩ to VCC); sinks up to 4 mA. |
Key Features
| Feature | Design Value |
|---|---|
| ±1% reset threshold accuracy | Guarantees consistent POR activation across industrial temperature range without trimming. |
| Programmable reset timeout | Enables system-specific POR hold times (e.g., 2 ms with 1 nF) without firmware or additional logic. |
| Immunity to short VCC transients | Rejects sub-microsecond glitches (e.g., 100 ns @ –100 mV), reducing false resets in noisy environments. |
| Low 0.5 V reset validity floor | Ensures reset remains asserted until VCC rises sufficiently for stable µP operation, even during deep discharge. |
| 16 µA quiescent current | Minimizes standby power draw in always-on battery-powered devices such as IoT sensors and wearables. |
Applications
| Microprocessor Power-On Reset | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Ensuring clean boot sequence for ARM Cortex-M or RISC-V microcontrollers during cold start or wake-from-sleep. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low reset until VCC stabilizes above 2.63 V and holds for programmable delay. Use Value: Prevents code execution before supply rails meet minimum operating requirements, eliminating lockups and undefined states. | Use Scenario: Maintaining system integrity in handheld multimeters or portable gas analyzers powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Monitoring battery voltage decay and triggering controlled shutdown before undervoltage damage occurs. Use Value: Extends usable battery capacity by enabling graceful shutdown at precisely 2.63 V, avoiding premature cutoff or deep discharge. |
| Industrial Control Module | Embedded Networking Device |
Use Scenario: Supervising 3.3 V I/O rails in PLC I/O modules exposed to EMI-rich factory environments. IC Role / Device Role / Timing Role: Providing glitch-immune reset generation despite transient noise on VCC due to relay switching or motor drives. Use Value: Eliminates spurious resets caused by sub-100 ns supply dips, improving system uptime and diagnostic reliability. | Use Scenario: Enabling robust power sequencing in Wi-Fi/BLE edge nodes where MCU, RF transceiver, and sensor subsystems share a common LDO. IC Role / Device Role / Timing Role: Coordinating synchronized reset assertion across multiple voltage domains using open-drain wired-OR topology. Use Value: Guarantees deterministic startup order and eliminates race conditions between interdependent subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G18DBVR | Fixed 1.8 V reset threshold; 360 ms factory-programmed delay; higher ICC (2.5 µA min) | Lacks adjustable timeout and 2.63 V threshold; suited for low-voltage logic-only supervision | Select when fixed delay and lower voltage threshold are acceptable and design space permits SOT-23-6 |
| MAX6326UT26D3+ | 2.63 V threshold; no external capacitor programming; 140 ms fixed delay; higher hysteresis (120 mV) | Less flexible timing control but superior noise immunity; requires different PCB layout due to SOT-23-3 footprint | Choose for cost-sensitive designs needing proven field reliability and simplified BOM without capacitor routing |
Compared with TPS3808G18DBVR and MAX6326UT26D3+, the LP3470IM5X-2.63/NOPB uniquely combines factory-trimmed 2.63 V accuracy, user-adjustable reset hold time, and sub-1 V operational capability - making it optimal for battery-critical and brownout-prone embedded systems where timing flexibility and deep-supply supervision are mandatory.
Availability
LP3470IM5X-2.63/NOPB is available at Aetrix Electronics and suitable for microprocessor power-on-reset, battery-powered instrumentation, industrial control modules, and embedded networking devices requiring stable component supply and long-term manufacturability.
Supply support for LP3470IM5X-2.63/NOPB 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
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in power management, signal chain, and high-reliability ICs.
The LP3470 series belongs to TI's precision voltage supervisor product line, designed specifically for dependable power-rail monitoring in resource-constrained, battery-operated, and industrial-grade microcontroller systems.
FAQ
What is the exact reset threshold voltage of the LP3470IM5X-2.63/NOPB?
The LP3470IM5X-2.63/NOPB has a factory-programmed reset threshold of 2.63 V with ±1% accuracy over the full operating temperature range of –40°C to +85°C. This value is guaranteed by production testing and applies to all units shipped under this part number, ensuring consistent power-on-reset behavior without external calibration.
How do I configure the reset time-out period for the LP3470IM5X-2.63/NOPB?
To configure the reset time-out period (tRP) for the LP3470IM5X-2.63/NOPB, connect a ceramic capacitor (C1) between Pin 1 (SRT) and GND. The delay follows tRP (ms) = 2000 × C1 (µF); for example, a 100 nF capacitor yields ~200 ms. Leaving SRT floating disables programmable delay, resulting in minimum assertion time.
Does the LP3470IM5X-2.63/NOPB require an external pullup resistor on the Reset pin?
Yes, the LP3470IM5X-2.63/NOPB features an open-drain Reset output and requires an external pullup resistor to VCC. TI specifies a range of 0.68 kΩ to 68 kΩ; a typical value is 20 kΩ. This resistor ensures proper logic-high state when Reset is inactive and limits sink current to within the 4 mA absolute maximum rating.
Can the LP3470IM5X-2.63/NOPB operate reliably during brownout conditions?
Yes, the LP3470IM5X-2.63/NOPB remains fully functional down to VCC = 0.5 V and guarantees valid reset output assertion throughout this range. Its ability to monitor and respond at ultra-low supply voltages makes it especially suitable for brownout protection in Li-ion and coin-cell powered systems where voltage collapse must trigger controlled shutdown.
What package type and footprint does the LP3470IM5X-2.63/NOPB use?
The LP3470IM5X-2.63/NOPB uses a 5-pin SOT-23 (DBV) package with body dimensions of 1.60 mm × 2.90 mm and standardized pin pitch. It is compatible with JEDEC MO-178AA and has MSL Level-1 rating, supporting standard reflow profiles without dry-pack requirements.
LP3470IM5X-2.63/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LP3470IM5X-2.63/NOPB FAQ
1.How can I place an order for LP3470IM5X-2.63/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP3470IM5X-2.63/NOPB 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 LP3470IM5X-2.63/NOPB reliable?
The price and inventory of LP3470IM5X-2.63/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP3470IM5X-2.63/NOPB is usually 5 days.
3.What payment methods are accepted for LP3470IM5X-2.63/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP3470IM5X-2.63/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP3470IM5X-2.63/NOPB?
LP3470IM5X-2.63/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP3470IM5X-2.63/NOPB 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 LP3470IM5X-2.63/NOPB?
For technical support, including LP3470IM5X-2.63/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP3470IM5X-2.63/NOPB requirements.
6.How does Aetrix verify that LP3470IM5X-2.63/NOPB is sourced from the original manufacturer or authorized distributors?
All LP3470IM5X-2.63/NOPB 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 LP3470IM5X-2.63/NOPB meets industry standards.
7.What is the process for return or replacement of LP3470IM5X-2.63/NOPB?
All LP3470IM5X-2.63/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP3470IM5X-2.63/NOPB, 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 LP3470IM5X-2.63/NOPB part is unused and in its original packaging.
Return procedure for LP3470IM5X-2.63/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP3470IM5X-2.63/NOPB Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
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…
