My Inquiry
My Account
Analog Devices Inc. LTC3417AEDHC-2#TRPBF
- Part No.:
- LTC3417AEDHC-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC3417AEDHC-2#TRPBF.pdf
- Description:
- IC REG BCK ADJ 1A/1.5A DL 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,305
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3417AEDHC-2#TRPBF from Analog Devices (formerly Linear Technology) is a dual synchronous step-down DC/DC regulator delivering 1.5A on Channel 1 and 1A on Channel 2, operating at up to 4MHz switching frequency with input range 2.25V–5.5V and output adjustability from 0.8V to 5V. It integrates low-RDS(ON) P-channel and N-channel MOSFETs, supports Burst Mode™ for <125μA quiescent current, and targets compact power delivery in GPS, automotive instrumentation, and point-of-load systems.
For engineers reviewing the LTC3417AEDHC-2#TRPBF datasheet, LTC3417AEDHC-2#TRPBF pinout, LTC3417AEDHC-2#TRPBF application, or LTC3417AEDHC-2#TRPBF equivalent, key selection criteria include dual-channel phase control (in-phase or 180° out-of-phase), programmable 0.6–4MHz frequency via FREQ pin resistor, selectable light-load modes (Burst/Pulse Skip/Forced Continuous), and thermal performance in the 3mm × 5mm DFN package with exposed PGND2 pad.
Technical Context
The LTC3417AEDHC-2#TRPBF uses a constant-frequency current-mode architecture with shared clocking across both channels. Its PHASE pin configures Channel 2 relative to Channel 1 (0V = 180° out-of-phase; VIN = in-phase), reducing RMS input current stress when out-of-phase. The SYNC/MODE pin selects operating mode: >VIN−0.5V enables Burst Mode™ (low IQ), <0.5V enables Pulse Skip (low ripple), and VIN/2 enables Forced Continuous (fixed-frequency noise).
FREQ pin programming sets oscillator frequency from 0.6MHz to 4MHz via external resistor or fixes it at 1.5MHz when tied to VIN. Internal error amplifiers compare VFB1/VFB2 (0.8V nominal reference) against feedback dividers, adjusting ITH1/ITH2 (0–1.5V range) to regulate peak inductor current. Undervoltage lockout activates below 2.07V, and dropout operation maintains 100% duty cycle with only 100μA total quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.25V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V rail inputs without pre-regulation |
| Output Current | 1.5A (CH1), 1A (CH2) - guaranteed minimum per channel with internal current limiting (2.5A/1.7A peak) |
| Switching Frequency | 0.6MHz to 4MHz - adjustable via FREQ pin resistor; enables use of sub-2mm-height inductors and ceramic capacitors |
| Feedback Voltage | 0.8V ±2% - precise reference enabling accurate output regulation from 0.8V to 5V using standard resistor dividers |
| Quiescent Current | 125μA (Sleep), <1μA (Shutdown) - extends battery life in always-on or low-duty-cycle systems |
| Efficiency | Up to 95% - achieved via synchronous rectification and low RDS(ON) switches (0.088Ω/0.16Ω top-side) |
| Power Good | PGOOD output asserts low when either VOUT deviates >±6% from target - enables system-level sequencing and fault monitoring |
Pinout & Package
Package: 16-lead (3mm × 5mm) plastic DFN with exposed thermal pad (Pin 17 = PGND2/GNDD), rated for −40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND1 (Pin 1) | N-channel driver ground for CH1 | Provides low-impedance return path for SW1 current; must be connected to local PGND plane |
| SW1 (Pin 15) | CH1 switch node | Connects to inductor L1; swings between VIN1 and PGND1; requires tight layout to minimize EMI |
| PHASE (Pin 14) | Channel phase relationship control | 0V = CH2 180° out-of-phase with CH1 (reduces input RMS current); VIN = in-phase |
| GNDA (Pin 13) | Analog ground reference | Separate ground for internal analog circuitry; must be tied to quiet AGND plane, not noisy PGND |
| FREQ (Pin 12) | Oscillator frequency set input | Tie to VIN for 1.5MHz; connect RT resistor to GND for 0.6–4MHz adjustment (RT ≈ 1.61×10¹¹/fO Ω) |
| PGOOD (Pin 11) | Open-drain power-good indicator | Pulled low if either VOUT falls >6% below regulation; active-high logic requires external pull-up |
| SW2 (Pin 10) | CH2 switch node | Connects to inductor L2; swings between VIN2 and PGND2; shares thermal pad with GNDD |
| SYNC/MODE (Pin 9) | Mode selection & external sync input | Controls light-load behavior (Burst/Pulse Skip/Forced Continuous) and accepts external clock for synchronization |
| RUN1 (Pin 1) | CH1 enable input | Logic high (>0.85V) enables CH1; low disables CH1; both RUN1/RUN2 low = full shutdown (<1μA IQ) |
| VIN1 (Pin 2) | CH1 power supply input | Supplies P-channel switch and gate drive for CH1; separate from VIN2 to allow independent input rails |
| ITH1 (Pin 3) | CH1 error amplifier compensation | 0–1.5V control voltage setting peak inductor current; connects to RC network for loop stability |
| VFB1 (Pin 4) | CH1 feedback input | Monitors resistive divider output; regulated to 0.8V reference; determines final VOUT1 accuracy |
| VFB2 (Pin 5) | CH2 feedback input | Same function as VFB1 for CH2; allows independent output voltage programming |
| ITH2 (Pin 6) | CH2 error amplifier compensation | Identical role to ITH1 but for CH2; enables independent loop compensation |
| RUN2 (Pin 7) | CH2 enable input | Independent enable for CH2; supports asymmetric power sequencing |
| VIN2 (Pin 8) | CH2 power supply & analog supply | Supplies CH2 P-channel switch and all internal analog circuitry; must be stable and low-noise |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel phase control | PHASE pin selects 0° or 180° relative switching - reduces input capacitor RMS current by up to 30% in out-of-phase mode |
| Three selectable light-load modes | Burst Mode™ (125μA IQ), Pulse Skip (low ripple), Forced Continuous (EMI-filterable fixed frequency) - selected via SYNC/MODE voltage level |
| Programmable high-frequency operation | 0.6–4MHz via FREQ pin resistor - enables ultra-compact designs with 2mm-height inductors and low-ESR ceramics |
| Synchronous rectification | Integrated P/N-channel MOSFETs eliminate Schottky diodes - improves efficiency by 5–10% vs. asynchronous designs at medium loads |
| Individual soft-start and enable | RUN1/RUN2 pins provide independent channel control and digital soft-start over 1024 clock cycles - prevents inrush and enables flexible power sequencing |
| Robust protection suite | Short-circuit protection, undervoltage lockout (2.07V threshold), thermal shutdown, and PGOOD monitoring - ensures reliable operation under fault conditions |
Applications
| GPS/Navigation Systems | Automotive Instrumentation |
|---|---|
Use Scenario: Powering RF front-end, baseband processor, and display backlight in portable navigation devices with single-cell Li-ion input. IC Role / Device Role / Timing Role: Dual-output buck regulator supplying 1.8V/1.5A to processor core and 2.5V/1A to RF transceiver, with out-of-phase switching to minimize input ripple. Use Value: 95% peak efficiency and 125μA sleep current extend battery runtime; 4MHz operation allows use of tiny 1.5μH/2.2μH shielded inductors. | Use Scenario: Providing stable 3.3V and 5V rails for digital cluster microcontrollers, CAN transceivers, and sensor interfaces in instrument panels. IC Role / Device Role / Timing Role: Dual-channel DC/DC converter generating isolated, sequenced outputs with PGOOD monitoring for system reset coordination. Use Value: −40°C to +85°C rating ensures reliability in automotive cabins; independent RUN pins support cold-boot sequencing and fail-safe shutdown. |
| PC Cards | General Purpose Point of Load DC/DC |
Use Scenario: Delivering tightly regulated 1.2V and 1.8V to PCIe interface controllers and memory buffers in compact expansion cards. IC Role / Device Role / Timing Role: Compact dual-buck regulator in 3mm × 5mm DFN package, supporting dynamic voltage scaling via feedback resistor networks. Use Value: Small footprint and high-frequency operation meet strict PC Card height constraints (<2mm component profile); Burst Mode™ minimizes standby power draw. | Use Scenario: Replacing discrete buck solutions in industrial PLC I/O modules requiring dual 3.3V/5V supplies with minimal BOM count. IC Role / Device Role / Timing Role: Integrated dual-channel regulator with internal MOSFETs, eliminating external diodes and reducing layout complexity. Use Value: Reduces total solution size by 40% vs. two single-channel ICs; thermal DFN package with exposed pad simplifies heatsinking in convection-cooled enclosures. |
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 |
|---|---|---|---|
| TPS65270RGET | Fixed 1.2V/3.3V outputs; no FREQ pin; lower max frequency (2.2MHz); higher quiescent current (250μA) | Predefined outputs simplify design but limit flexibility; less suitable for custom voltage rails or high-frequency miniaturization | Select when fixed dual-rail outputs and TI ecosystem compatibility outweigh programmability needs |
| ISL85412FRTZ-T7A | Single-channel only; 2A output; 0.6–4MHz programmable; no phase control or PGOOD | Requires two ICs for dual-rail; lacks channel coordination features like phase alignment or shared mode control | Choose for cost-sensitive single-rail applications where dual-channel integration is unnecessary |
Compared with TPS65270RGET and ISL85412FRTZ-T7A, the LTC3417AEDHC-2#TRPBF uniquely delivers independently programmable dual outputs, 180° phase control for input capacitor stress reduction, and sub-130μA light-load IQ - making it optimal for space-constrained, battery-sensitive, and multi-rail systems requiring design flexibility.
Availability
LTC3417AEDHC-2#TRPBF is available at Aetrix Electronics and suitable for GPS/navigation systems, automotive instrumentation, and general-purpose point-of-load DC/DC applications requiring stable component supply, extended temperature operation, and high-efficiency dual-rail power conversion.
Supply support for LTC3417AEDHC-2#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) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving precision, industrial, automotive, and communications markets.
The LTC3417A series is designed for medium-power, space-constrained DC/DC conversion in battery-powered and automotive environments, emphasizing high efficiency across load ranges, flexible frequency programming, and robust thermal performance in miniature packages.
FAQ
What is the maximum supported switching frequency for the LTC3417AEDHC-2#TRPBF?
The LTC3417AEDHC-2#TRPBF supports a maximum switching frequency of 4MHz when configured via an external resistor on the FREQ pin. This high-frequency capability enables the use of very small inductors (e.g., 1.5μH) and ceramic capacitors, reducing overall solution size and height - critical for portable and space-constrained applications. At 4MHz, the device maintains stable regulation and high efficiency across its specified load and input voltage ranges.
How does the PHASE pin affect input capacitor stress in the LTC3417AEDHC-2#TRPBF?
The PHASE pin on the LTC3417AEDHC-2#TRPBF selects whether Channel 2 operates in-phase or 180° out-of-phase with Channel 1. When set to 180° out-of-phase (PHASE = 0V), the input current ripple from both channels partially cancels, reducing RMS input current by up to 30%. This directly lowers stress on the input capacitor, allowing smaller capacitance values and extending capacitor lifetime - especially beneficial in high-reliability automotive and industrial applications.
Can the LTC3417AEDHC-2#TRPBF operate with different input voltages on VIN1 and VIN2?
Yes, the LTC3417AEDHC-2#TRPBF supports independent input supplies: VIN1 powers Channel 1's P-channel switch and gate drive, while VIN2 powers Channel 2's switch and all internal analog circuitry. However, the absolute difference |VIN1 − VIN2| must not exceed 0.3V per Absolute Maximum Ratings. This architecture allows partial rail independence but requires careful PCB layout to minimize voltage differentials and ensure stable operation across temperature and load.
What is the purpose of the SYNC/MODE pin on the LTC3417AEDHC-2#TRPBF?
The SYNC/MODE pin on the LTC3417AEDHC-2#TRPBF serves two functions: it selects light-load operating mode (Burst Mode™, Pulse Skip, or Forced Continuous) based on applied voltage level, and accepts an external clock signal for frequency synchronization. This dual functionality enables system-level noise management - e.g., synchronizing multiple converters to avoid beat frequencies - while optimizing efficiency or ripple performance depending on real-time load conditions.
Does the LTC3417AEDHC-2#TRPBF require external Schottky diodes?
No, the LTC3417AEDHC-2#TRPBF does not require external Schottky diodes. It integrates synchronous P-channel and N-channel MOSFETs for both channels, eliminating body-diode conduction losses and enabling high efficiency (up to 95%) without external rectification components. This reduces BOM count, board area, and thermal dissipation - particularly advantageous in compact, thermally constrained designs.
LTC3417AEDHC-2#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN 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):
- 2.25V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5V
- Current - Output:
- 1A, 1.5A
- Frequency - Switching:
- 1.5MHz, 600kHz ~ 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DFN (5x3)
LTC3417AEDHC-2#TRPBF FAQ
1.How can I place an order for LTC3417AEDHC-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3417AEDHC-2#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 LTC3417AEDHC-2#TRPBF reliable?
The price and inventory of LTC3417AEDHC-2#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3417AEDHC-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3417AEDHC-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3417AEDHC-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3417AEDHC-2#TRPBF?
LTC3417AEDHC-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3417AEDHC-2#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 LTC3417AEDHC-2#TRPBF?
For technical support, including LTC3417AEDHC-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3417AEDHC-2#TRPBF requirements.
6.How does Aetrix verify that LTC3417AEDHC-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3417AEDHC-2#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 LTC3417AEDHC-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3417AEDHC-2#TRPBF?
All LTC3417AEDHC-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3417AEDHC-2#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 LTC3417AEDHC-2#TRPBF part is unused and in its original packaging.
Return procedure for LTC3417AEDHC-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3417AEDHC-2#TRPBF Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
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…
