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Analog Devices Inc. LTC4360CSC8-2#TRMPBF
- Part No.:
- LTC4360CSC8-2#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Power Management - Specialized
- Package:
- 8-VFSOP (0.049", 1.25mm Width)
- Datasheet:
-
LTC4360CSC8-2#TRMPBF.pdf
- Description:
- IC OVERVOLTAGE PROT CONT SC70-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,185
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Product details
Overview
LTC4360CSC8-2#TRMPBF from Analog Devices is an overvoltage protection controller designed to safeguard 2.5V–5.5V portable systems from input transients up to 80V. It controls an external N-channel MOSFET in series with the power path and adds optional negative voltage protection via an external P-channel MOSFET driven by its GATEP pin. Used in USB-powered smartphones and MP3 players with multi-source inputs.
For engineers reviewing the LTC4360CSC8-2#TRMPBF datasheet, LTC4360CSC8-2#TRMPBF pinout, LTC4360CSC8-2#TRMPBF application, or LTC4360CSC8-2#TRMPBF equivalent, key selection criteria include 5.8V ±2% overvoltage threshold, <1µs turn-off response, adjustable dV/dt ramp-up, reverse voltage protection capability, and SC70-8 package compatibility with space-constrained handheld PCB layouts.
Technical Context
The LTC4360CSC8-2#TRMPBF implements a dual-stage protection architecture: an overvoltage comparator triggers fast GATE pull-down (≤1µs) when VIN exceeds 5.8V, while its GATEP pin drives an external P-channel MOSFET to clamp negative input voltages down to –60V. Its internal charge pump ensures ≥4.5V gate drive above VOUT for logic-level N-MOSFETs across 3V–5.5V input range.
Startup includes a 130ms delay before controlled GATE ramp-up (3V/ms typical), limiting inrush current into load capacitance. After overvoltage recovery, VIN must remain below 5.7V for 130ms before restart. PWRGD asserts low 65ms after GATE exceeds VGATE(TH), providing sequenced power-good signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Overvoltage Threshold | 5.8V ±2% - precise trip point enables robust 5V system protection without external resistor dividers |
| Turn-Off Propagation Delay | <1µs - isolates downstream circuitry before transient energy propagates beyond MOSFET |
| Input Voltage Range | 2.5V to 5.5V - matches core logic supply rails of portable SoCs and PMICs |
| Max Input Transient Withstand | 80V - eliminates need for TVS diodes in most automotive adapter and wall charger applications |
| GATE Drive Capability | ≥4.5V above VOUT at VIN ≥3V - ensures full enhancement of low-RDS(on) logic-level N-MOSFETs |
| GATEP Clamp Voltage | 5.8V below VIN - protects P-channel MOSFET gate oxide during negative input events |
| PWRGD Assertion Delay | 65ms after GATE > VGATE(TH) - provides stable output settling time before system power sequencing proceeds |
Pinout & Package
Package: 8-Lead Plastic SC70 (SC8), 2.0mm × 1.25mm footprint, 0.5mm pitch, exposed pad not present. Compatible with standard reflow profiles and high-density portable PCB assemblies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Supply Input | Monitored node for overvoltage detection; withstands up to 80V DC/transient |
| GND (pins 2,3,4) | Ground Reference | Three dedicated ground pins minimize ground bounce in fast-switching protection events |
| GATEP | P-Channel MOSFET Gate Driver | Drives external P-MOSFET for reverse/negative voltage protection; internally clamped to 5.8V below VIN |
| GATE | N-Channel MOSFET Gate Driver | Charge-pump-driven output with 3V/ms ramp rate; clamped to 6V above OUT |
| OUT | Output Voltage Sense | Connects to N-MOSFET source to establish GATE-to-OUT clamp reference |
| PWRGD | Power-Good Status Output | Open-drain output with 500kΩ pull-up to OUT; asserts low 65ms after valid gate voltage |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Negative Voltage Protection | GATEP pin enables use of external P-MOSFET to block –60V input faults - no additional IC required |
| No External TVS Required | 80V input rating and MOSFET avalanche absorption eliminate need for TVS diodes in >90% of portable designs |
| Controlled Inrush Limiting | Adjustable GATE ramp rate (3V/ms default, ext. cap configurable) limits COUT charging current to ≤3mA/µF |
| Fast Fault Isolation | <1µs GATE turn-off prevents >5.8V overvoltage from reaching protected load - critical for sub-28nm SoCs |
| Power-Good Sequencing | PWRGD output provides deterministic 65ms delay after GATE stabilization - simplifies system reset timing |
Applications
| USB-C Power Input Protection | Smartphone Multi-Adapter Support |
|---|---|
Use Scenario: A smartphone accepts power from USB-C PD (5–9V), car adapter (12V), and legacy USB-A (5V), risking overvoltage if wrong adapter is plugged. IC Role / Device Role / Timing Role: LTC4360CSC8-2#TRMPBF sits between input connector and PMIC, monitoring VIN and disabling pass MOSFET within 1µs if >5.8V detected. Use Value: Prevents permanent damage to 5V rail and baseband processor; enables safe hot-plug across all adapter types without manual selection. |
Use Scenario: Handheld medical scanner uses wall adapter (5V), battery backup (3.7V), and USB OTG host mode (5V), requiring fault isolation between sources. IC Role / Device Role / Timing Role: LTC4360CSC8-2#TRMPBF controls primary N-MOSFET and secondary P-MOSFET to block reverse current and negative transients during source switching. Use Value: Eliminates cross-conduction and backfeed; supports seamless source handoff while maintaining 5.8V OVP and –60V reverse protection. |
| Digital Camera Battery Charging Interface | Portable Audio Player USB/Car Adapter Dual Input |
Use Scenario: DSLR camera charges Li-ion battery via USB (5V) or 12V car adapter, but battery management IC tolerates only 5.5V max. IC Role / Device Role / Timing Role: LTC4360CSC8-2#TRMPBF acts as front-end protector, clamping 12V input to safe 5V output using external MOSFET and absorbing cable inductance spikes. Use Value: Absorbs 40V inductive kickback without TVS; maintains uninterrupted charging even during hot-plug transients. |
Use Scenario: MP3 player draws power from USB port (5V) or car cigarette lighter (12V), with audio codec IC rated for 3.3V–5.5V only. IC Role / Device Role / Timing Role: LTC4360CSC8-2#TRMPBF regulates input path using N-MOSFET for overvoltage cutoff and P-MOSFET (via GATEP) for reverse polarity blocking. Use Value: Guarantees 5.8V OVP and –12V reverse protection simultaneously - prevents latch-up in analog audio stages during misconnection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar overvoltage protection controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT4356-1IMS#PBF | Wider input range (4V–80V); integrated 60V MOSFET driver; no GATEP pin for negative voltage protection | Designed for industrial 12/24V systems; lacks native reverse polarity blocking capability | Select when protecting higher-voltage rails without negative input risk; requires external P-MOSFET circuit for reverse protection |
| LTC4365CDDB#TRMPBF | Single-chip solution with integrated N-MOSFET driver and reverse-current blocking; 5.85V OVP threshold; SC70-6 package | Smaller footprint but no GATEP - cannot drive external P-MOSFET for enhanced negative voltage tolerance | Choose for space-constrained 5V-only designs where –60V protection is unnecessary; reduces component count vs. discrete MOSFET approach |
Compared with LT4356-1IMS#PBF and LTC4365CDDB#TRMPBF, the LTC4360CSC8-2#TRMPBF uniquely delivers both precision 5.8V overvoltage cutoff and dedicated GATEP-driven negative voltage protection in one SC70-8 device - enabling dual-fault coverage without adding complexity or board area.
Availability
LTC4360CSC8-2#TRMPBF is available at Aetrix Electronics and suitable for USB power interface protection, smartphone multi-adapter support, and portable medical device power conditioning requiring stable component supply and long-term lifecycle continuity.
Supply support for LTC4360CSC8-2#TRMPBF 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and consumer markets since 1965.
The LTC4360CSC8-2#TRMPBF belongs to Analog Devices' overvoltage protection controller product line, engineered specifically for portable electronics with multi-source power inputs and stringent reliability requirements in space-constrained form factors.
FAQ
What is the overvoltage threshold accuracy of the LTC4360CSC8-2#TRMPBF?
The LTC4360CSC8-2#TRMPBF features a 5.8V overvoltage threshold with ±2% accuracy over temperature (0°C to 70°C). This specification is guaranteed in the datasheet's Electrical Characteristics table under VIN(OV), ensuring reliable trip points for 5V system protection without calibration or external components.
Does the LTC4360CSC8-2#TRMPBF provide reverse voltage protection?
Yes, the LTC4360CSC8-2#TRMPBF provides reverse voltage protection via its dedicated GATEP pin, which drives an external P-channel MOSFET to block negative input voltages down to –60V. This function is exclusive to the -2 variant and is not present in the LTC4360-1 family members.
How does the LTC4360CSC8-2#TRMPBF handle inrush current during startup?
The LTC4360CSC8-2#TRMPBF limits inrush current by controlling the GATE ramp rate at 3V/ms (typical) during power-up. This linear gate voltage rise results in a predictable dV/dt at VOUT, yielding inrush current of ~3mA per µF of output capacitance - eliminating need for soft-start ICs or complex RC networks.
What is the purpose of the PWRGD pin on the LTC4360CSC8-2#TRMPBF?
The PWRGD pin on the LTC4360CSC8-2#TRMPBF is an open-drain power-good status output with internal 500kΩ pull-up to OUT. It asserts low 65ms after GATE voltage exceeds VGATE(TH), providing a deterministic delay to confirm stable output before enabling downstream circuitry - essential for reliable system power sequencing.
Can the LTC4360CSC8-2#TRMPBF operate without external MOSFETs?
No, the LTC4360CSC8-2#TRMPBF requires external MOSFETs to function: an N-channel MOSFET driven by GATE for overvoltage cutoff, and optionally a P-channel MOSFET driven by GATEP for negative voltage protection. It contains no integrated power switches and relies entirely on external FETs for current handling and fault isolation.
LTC4360CSC8-2#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-VFSOP (0.049", 1.25mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Handheld/Mobile Devices
- Current - Supply:
- 220µA
- Voltage - Supply:
- 2.5V ~ 80V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-8
LTC4360CSC8-2#TRMPBF FAQ
1.How can I place an order for LTC4360CSC8-2#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4360CSC8-2#TRMPBF 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 LTC4360CSC8-2#TRMPBF reliable?
The price and inventory of LTC4360CSC8-2#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4360CSC8-2#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC4360CSC8-2#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4360CSC8-2#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4360CSC8-2#TRMPBF?
LTC4360CSC8-2#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4360CSC8-2#TRMPBF 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 LTC4360CSC8-2#TRMPBF?
For technical support, including LTC4360CSC8-2#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4360CSC8-2#TRMPBF requirements.
6.How does Aetrix verify that LTC4360CSC8-2#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC4360CSC8-2#TRMPBF 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 LTC4360CSC8-2#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC4360CSC8-2#TRMPBF?
All LTC4360CSC8-2#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4360CSC8-2#TRMPBF, 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 LTC4360CSC8-2#TRMPBF part is unused and in its original packaging.
Return procedure for LTC4360CSC8-2#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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