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Analog Devices Inc. LTC3607EMSE#TRPBF
- Part No.:
- LTC3607EMSE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC3607EMSE#TRPBF.pdf
- Description:
- IC REG BUCK ADJ 600MA DL 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,070
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Product details
Overview
LTC3607EMSE#TRPBF from Analog Devices (formerly Linear Technology) is a dual-channel monolithic synchronous step-down DC/DC regulator delivering 600mA per channel from a 4.5V–15V input, featuring 2.25MHz fixed-frequency operation, 55µA quiescent current, and independent 0.6V feedback references enabling adjustable outputs from 0.6V to VIN - deployed in dual Li-ion battery-powered instrumentation requiring compact, high-efficiency dual-rail power.
For engineers reviewing the LTC3607EMSE#TRPBF datasheet, LTC3607EMSE#TRPBF pinout, LTC3607EMSE#TRPBF application, or LTC3607EMSE#TRPBF equivalent, key selection criteria include light-load efficiency trade-offs (Burst Mode vs pulse-skipping), ±1.5% output voltage accuracy, 16-lead MSOP thermal performance (θJA = 37°C/W), and independent PGOOD outputs with 64-cycle blanking time.
Technical Context
The LTC3607EMSE#TRPBF implements peak current-mode control with two identical, in-phase synchronous buck regulators sharing a single 2.25MHz oscillator - each with internal P-channel high-side and N-channel low-side MOSFETs (RDS(ON) = 0.6Ω / 0.25Ω typ), independent RUN/PGOOD pins, and separate VFB inputs referenced to 0.6V.
Its MODE/SYNC pin serves dual functions: selecting Burst Mode (floating or ≥1V) for ultra-low IQ (55µA) at light loads, or pulse-skipping (grounded) for minimal output ripple (~30mVP-P); it also accepts external 1MHz–4MHz clocks for synchronization while forcing pulse-skipping mode during sync.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 15V - supports dual Li-ion (8.4V max), automotive transients, and industrial 12V rails without pre-regulation. |
| Output Current per Channel | 600mA continuous - sufficient for powering dual-core microcontrollers, ADCs, and RF front-ends simultaneously. |
| Switching Frequency | 2.25MHz fixed (±25%) - enables use of 1mm-height inductors and small ceramic capacitors for space-constrained PCBs. |
| Quiescent Current | 55µA total - extends battery runtime in always-on sensor nodes and portable medical devices. |
| Feedback Reference Voltage | 0.6V ±1.5% - allows precise low-voltage outputs (e.g., 1.2V, 1.8V, 3.3V) with standard resistor dividers and minimizes divider current loss. |
| Power Good Accuracy | ±8.5% window with 64-cycle blanking - ensures reliable system sequencing and avoids false resets during load transients. |
| Shutdown Current | <1µA - meets stringent off-state leakage requirements in battery-backed systems. |
Pinout & Package
Package: 16-lead plastic MSOP (3mm × 4.9mm), thermally enhanced with exposed PGND pad (Pin 17) requiring solder connection to PCB ground plane for θJA = 37°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE/SYNC (Pin 15) | Multi-function control input | Selects light-load mode (Burst/pulse-skip) or accepts external 1–4MHz sync clock; determines startup behavior and ripple-efficiency trade-off. |
| PGOOD1 / PGOOD2 (Pins 16, 9) | Open-drain status outputs | Assert low when respective output deviates >±8.5% from regulation; 64-cycle delay prevents chatter during transient recovery. |
| VFB1 / VFB2 (Pins 13, 12) | Feedback inputs | Monitor divided output voltage; internal 0.6V reference enables accurate regulation down to 0.6V with external resistive dividers. |
| RUN1 / RUN2 (Pins 14, 11) | Independent enable inputs | High-logic enable (>3.0V) activates corresponding channel; internal soft-start limits rise time to ≥0.35ms for controlled turn-on. |
| SW1 / SW2 (Pins 3, 6) | Switch node connections | Connect to external inductors; swing between PVINx and PGNDx; require tight layout to minimize EMI and switching losses. |
| PVIN1 / PVIN2 / SVIN (Pins 4, 5, 1) | Main power inputs | PVIN1/PVIN2 accept independent supplies; SVIN must be tied to higher of the two or via diodes - critical for redundancy or mixed-source designs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent synchronous buck regulators | Eliminates need for external Schottky diodes and reduces board area versus discrete solutions; enables true dual-rail isolation. |
| Burst Mode® operation | Delivers 55µA total quiescent current - extends battery life in IoT edge nodes where average load is <10mA. |
| 100% duty cycle dropout operation | Maintains regulation as input drops to VOUT + RDS(ON)•IOUT - critical for maintaining uptime during brownout in automotive infotainment systems. |
| Externally synchronizable 2.25MHz oscillator | Enables noise-sensitive applications (e.g., audio codecs, precision ADCs) to avoid beat frequencies by locking to system clock. |
| Internal compensation | Reduces BOM count and design risk - no external compensation network required for stable operation with standard ceramic output capacitors. |
Applications
| Dual Lithium-Ion Battery Supplies | Automotive Infotainment Systems |
|---|---|
Use Scenario: Portable handheld test equipment powered by two series-connected Li-ion cells (6.0–8.4V). IC Role / Device Role / Timing Role: Dual-rail regulator generating 3.3V for MCU and 5.0V for analog front-end from unregulated battery voltage. Use Value: 96% peak efficiency and 55µA quiescent current maximize runtime; independent RUN pins allow selective shutdown of unused subsystems. | Use Scenario: Head unit with display, Bluetooth, and audio processing requiring isolated 3.3V and 1.2V rails. IC Role / Device Role / Timing Role: Primary DC/DC converter supplying core logic and interface voltages from 12V vehicle bus with transient tolerance. Use Value: 15V absolute max rating and UVLO at 3.4V protect against load dump and cold-crank conditions; PGOOD outputs coordinate safe boot sequencing. |
| Servers & Networking Equipment | Industrial Sensor Nodes |
Use Scenario: Compact baseboard management controller (BMC) needing redundant 3.3V and 1.8V supplies. IC Role / Device Role / Timing Role: Dual-output point-of-load regulator with independent power-good signaling for fault-isolated rail monitoring. Use Value: Synchronization capability eliminates switching noise coupling into sensitive timing circuits; MSOP package fits dense server motherboard layouts. | Use Scenario: Wireless vibration sensor node operating on primary lithium thionyl chloride cell (3.6V nominal, up to 3.9V). IC Role / Device Role / Timing Role: Step-down regulator generating stable 3.3V for MCU and radio from wide-input battery source with ultra-low standby drain. Use Value: Burst Mode achieves <1µA shutdown and 55µA active IQ - enabling 10+ year battery life in predictive maintenance deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65270PWP | Higher 3A per channel, 2.2MHz, but 100µA IQ and no Burst Mode - uses external compensation. | Targets higher-power applications like FPGA I/O banks; less suitable for battery longevity-critical designs. | Choose TPS65270PWP when output current >600mA or when external loop tuning is required for custom transient response. |
| ISL8026IRZ-T7A | 600mA per channel, 2.25MHz, 40µA IQ, but only single PGOOD and no MODE/SYNC flexibility - requires external soft-start. | Optimized for cost-sensitive industrial PLC modules where dual PGOOD and light-load mode selection are non-essential. | Choose ISL8026IRZ-T7A when footprint and BOM cost are prioritized over independent sequencing and adaptive light-load efficiency. |
Compared with TPS65270PWP and ISL8026IRZ-T7A, the LTC3607EMSE#TRPBF uniquely balances ultra-low IQ, dual independent PGOODs, and selectable light-load modes in a thermally efficient MSOP package - making it optimal for space- and battery-limited dual-rail systems where reliability and runtime are co-prioritized.
Availability
LTC3607EMSE#TRPBF is available at Aetrix Electronics and suitable for dual-rail embedded instrumentation, battery-powered medical devices, and automotive body electronics requiring stable component supply across extended temperature ranges (–40°C to 125°C).
Supply support for LTC3607EMSE#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 power management ICs with rigorous characterization and long-term product support.
The LTC3607EMSE#TRPBF belongs to Linear's monolithic synchronous buck regulator family, designed specifically for compact, high-efficiency dual-output power conversion in battery-powered and thermally constrained applications.
FAQ
What is the maximum input voltage rating for the LTC3607EMSE#TRPBF?
The LTC3607EMSE#TRPBF has an absolute maximum input voltage rating of 15V on all PVIN and SVIN pins. Operation beyond this voltage risks permanent damage. The recommended operating range is 4.5V to 15V, making it suitable for dual Li-ion (8.4V max), 12V automotive, and industrial supply rails. Always observe the 3.4V to 4.3V SVIN undervoltage lockout threshold to ensure stable startup.
How does the MODE/SYNC pin affect light-load efficiency and output ripple in the LTC3607EMSE#TRPBF?
The MODE/SYNC pin directly controls the LTC3607EMSE#TRPBF's light-load behavior: floating or applying ≥1V selects Burst Mode®, achieving 55µA total quiescent current but with ~30mVP-P output ripple; grounding selects pulse-skipping mode, reducing ripple to <10mVP-P at the cost of ~35µA higher IQ. This pin also accepts 1MHz–4MHz external clocks for synchronization - automatically enabling pulse-skipping during sync.
Can the LTC3607EMSE#TRPBF operate with different input voltages on PVIN1 and PVIN2?
Yes - the LTC3607EMSE#TRPBF supports independent input sources on PVIN1 and PVIN2. SVIN must be connected to the higher of the two (directly or via diodes) to ensure proper biasing of internal circuitry. This architecture enables redundancy, mixed-source designs (e.g., battery + USB), and fault-tolerant power systems where one channel remains operational if its input fails.
What thermal performance can be expected from the LTC3607EMSE#TRPBF in its MSOP package?
The LTC3607EMSE#TRPBF in the 16-lead MSOP package has a junction-to-ambient thermal resistance (θJA) of 37°C/W when mounted on a standard 2-layer PCB with the exposed PGND pad (Pin 17) fully soldered to a 1-inch² copper pour. This enables full 600mA/channel operation at ambient temperatures up to 85°C without forced airflow - verified by Linear's characterization data across –40°C to 125°C junction range.
Does the LTC3607EMSE#TRPBF require external compensation components?
No - the LTC3607EMSE#TRPBF features fully internal compensation, eliminating the need for external RC networks. This simplifies layout, reduces BOM count, and guarantees stability with standard ceramic output capacitors (≥10µF, ≤150mΩ ESR). Internal compensation is optimized for the specified 2.25MHz switching frequency and typical inductor values (e.g., 4.7µH), enabling robust transient response without designer tuning.
LTC3607EMSE#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 15V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP-EP
LTC3607EMSE#TRPBF FAQ
1.How can I place an order for LTC3607EMSE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3607EMSE#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 LTC3607EMSE#TRPBF reliable?
The price and inventory of LTC3607EMSE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3607EMSE#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3607EMSE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3607EMSE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3607EMSE#TRPBF?
LTC3607EMSE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3607EMSE#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 LTC3607EMSE#TRPBF?
For technical support, including LTC3607EMSE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3607EMSE#TRPBF requirements.
6.How does Aetrix verify that LTC3607EMSE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3607EMSE#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 LTC3607EMSE#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3607EMSE#TRPBF?
All LTC3607EMSE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3607EMSE#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 LTC3607EMSE#TRPBF part is unused and in its original packaging.
Return procedure for LTC3607EMSE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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