LTC2952CUF#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
LTC2952CUF#PBF is a pushbutton power path controller with system monitoring from Analog Devices in a 16-pin QFN package. It manages clean power-on and power-off sequencing via a single pushbutton, with adjustable hold-off timers, watchdog monitoring, and interrupt outputs for microcontroller supervision. Ideal for handheld devices, industrial instruments, and embedded systems requiring reliable soft power control.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- LTC2952CUF#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.0700(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC2952CUF#PBF?
- Pushbutton on/off controller with adjustable debounce and hold-off timer for clean power sequencing
- Watchdog timer with adjustable timeout period monitors system health and triggers resets
- Adjustable threshold voltage monitoring with interrupt output for microcontroller supervision
- Single-channel power path control in a compact 16-pin QFN package
- Wide input voltage range compatible with 2.7 V to 26 V supply rails
What is LTC2952CUF#PBF used for?
The LTC2952CUF#PBF is the primary power management IC in handheld instruments and portable industrial devices, where a single pushbutton must safely initiate power-on and power-off sequences without spurious triggering from mechanical bounce or accidental contact. It also serves as a system supervisor in embedded processor boards, using its watchdog timer to detect software lockups and issue resets when the watchdog is not refreshed within the programmed timeout window. Medical devices and communications equipment use this controller to ensure that power transitions are clean and that all subsystems are properly sequenced before the processor begins execution.
What are the specifications of LTC2952CUF#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1710 |
| YTEOL | 10 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | PUSHBUTTON ON/OFF CONTROLLER |
| JESD-30 Code | S-PQCC-N16 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 28V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the LTC2952CUF#PBF datasheet?
LTC2952CUF#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC2952CUF#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does the LTC2952CUF#PBF support, and what power path function does it provide?
The LTC2952CUF#PBF operates across input supply voltages from 2.7 V to 26 V, supporting a wide range of battery and regulated supply configurations. It controls an external MOSFET to switch the power path on or off based on pushbutton input, with adjustable hold-off timers preventing false triggering. This makes it suitable for both 3.3 V portable devices and 24 V industrial equipment in a single 16-pin QFN package.
How does the watchdog timer in this controller protect against firmware lockups in embedded systems?
The LTC2952CUF#PBF includes an adjustable watchdog timer that requires the host microcontroller to periodically toggle a dedicated pin to confirm normal operation. If the firmware fails to service the watchdog within the programmed timeout, the controller asserts a reset signal lasting at least 200 ms to restart the processor. This autonomous watchdog function operates independently of the CPU, providing a hardware safety net for safety-critical embedded designs with no additional external circuitry beyond a timing capacitor.
For a portable medical instrument, what advantages does the QFN-16 package offer over traditional SOIC alternatives?
The LTC2952CUF#PBF in a 16-pin QFN package measures approximately 3 mm × 3 mm, which is roughly 60% smaller than an equivalent SOIC-16 package and saves critical board area in space-constrained medical device PCBs. The QFN's exposed thermal pad also improves heat dissipation, helping maintain reliable operation across -40°C to 125°C temperature ranges typical of portable medical and industrial instruments. The fine 0.5 mm pitch requires reflow soldering, but enables much denser power management circuit integration.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.7500 | $9.75 |
| 10+ | $6.6070 | $66.07 |
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