My Inquiry
My Account
Analog Devices Inc. LTC3417AEDHC-2#PBF
- Part No.:
- LTC3417AEDHC-2#PBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC3417AEDHC-2#PBF.pdf
- Description:
- IC REG BCK ADJ 1A/1.5A DL 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:685
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3417AEDHC-2#PBF from Analog Devices (formerly Linear Technology) is a dual-channel synchronous step-down DC/DC regulator with 1.5A and 1A output capability, operating at up to 4MHz switching frequency across a 2.25V–5.5V input range. It features independent RUN pins, programmable frequency via FREQ pin (0.6–4MHz), 0.8V feedback reference, and phase-selectable out-of-phase operation to reduce input RMS current. Used in GPS navigation systems and automotive instrumentation for compact, high-efficiency point-of-load regulation.
For engineers reviewing the LTC3417AEDHC-2#PBF datasheet, LTC3417AEDHC-2#PBF pinout, LTC3417AEDHC-2#PBF application, or LTC3417AEDHC-2#PBF equivalent, key selection criteria include guaranteed 1.5A/1A output current, 100μA quiescent current in dropout, Burst Mode™ efficiency down to 100mA loads, and DFN-16 (3mm × 5mm) thermal performance with exposed PGND2 pad.
Technical Context
The LTC3417AEDHC-2#PBF employs constant-frequency current-mode control with shared oscillator and independent error amplifiers per channel. Its dual P-channel/N-channel synchronous MOSFETs achieve RDS(ON) of 88mΩ/84mΩ (CH1) and 160mΩ/150mΩ (CH2) at 3.6V, enabling >95% peak efficiency. The PHASE pin selects in-phase or 180° out-of-phase switching to minimize VIN ripple.
Three light-load modes-Burst Mode™ (low IQ = 125μA), Pulse Skip (low ripple <35mVP-P), and Forced Continuous-are selected via SYNC/MODE pin voltage thresholds. Internal soft-start, power-good monitoring (±6% VFB tolerance), and undervoltage lockout (2.07V rising) support robust system-level power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.25V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V rail inputs without pre-regulation. |
| Output Current (CH1/CH2) | 1.5A / 1A minimum - guarantees full load capability under worst-case thermal conditions in DFN package. |
| Switching Frequency | 0.6MHz to 4MHz - adjustable via external resistor on FREQ pin; enables optimization of size vs. efficiency. |
| Feedback Reference | 0.8V ±2% - allows precise output setting from 0.8V to 5V using standard resistor dividers. |
| Quiescent Current | 100μA total (both channels in dropout) - extends battery runtime in always-on subsystems. |
| Shutdown Current | <1μA - meets ultra-low-power system standby requirements. |
| Efficiency (Peak) | Up to 95% - achieved with internal low-RDS(ON) switches; eliminates need for external Schottky diodes. |
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 (LTC3417AE grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND1 (Pin 16) | Power ground for CH1 N-channel driver | Must be connected to low-impedance PCB ground plane; separates CH1 return path from analog/digital grounds. |
| SW1 (Pin 15) | CH1 switch node | Connects to CH1 inductor; swings between VIN1 and PGND1; requires tight layout to minimize EMI. |
| PHASE (Pin 14) | Channel phase relationship control | Logic-high = in-phase; logic-low = 180° out-of-phase; reduces input capacitor RMS stress when set to low. |
| GNDA (Pin 13) | Analog ground reference | Reference for internal error amplifiers and comparators; must tie to clean analog ground, not power ground. |
| FREQ (Pin 12) | Oscillator frequency programming | Connect to VIN for 1.5MHz; connect RT resistor to GND for 0.6–4MHz tuning - sets timing ramp current. |
| PGOOD (Pin 11) | Open-drain power-good indicator | Pulls low if either VOUT deviates >6% from target; shared signal simplifies system monitoring logic. |
| SW2 (Pin 10) | CH2 switch node | Connects to CH2 inductor; swings between VIN2 and PGND2; shares exposed pad thermal path. |
| SYNC/MODE (Pin 9) | Mode selection & external clock sync | Voltage threshold selects Burst Mode™ (VIN–0.5V), Pulse Skip (0.5V), or Forced Continuous (VIN/2). |
| RUN1 (Pin 1) | CH1 enable control | Logic-high enables CH1; both RUN1/RUN2 low places device in shutdown (<1μA IQ). |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous dual buck architecture | Eliminates external Schottky diodes; achieves >95% efficiency at full load with integrated P/N MOSFETs. |
| Programmable 0.6–4MHz switching | Enables use of sub-2mm-height inductors and ceramic capacitors; supports EMI-sensitive applications via frequency dithering. |
| 180° out-of-phase operation | Reduces input capacitor RMS current by ~30% versus in-phase mode - lowers required CIN rating and size. |
| Burst Mode™ operation | Maintains >85% efficiency at 100μA load with 125μA quiescent current - critical for battery-powered GPS modules. |
| Independent RUN pin control | Allows dynamic power gating of CH1 or CH2; supports asymmetric power sequencing in multi-rail systems. |
Applications
| GPS Navigation Module Power | Automotive Instrument Cluster |
|---|---|
|
Use Scenario: Dual-rail power for GPS baseband processor (1.8V/1.5A) and RF front-end (2.5V/1A) in compact automotive telematics unit. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated, low-noise supplies with fast transient response to handle bursty GNSS acquisition current. Use Value: 4MHz operation enables 1.5μH/2.2μH inductors ≤2mm height; out-of-phase mode cuts input capacitor size by 40% versus discrete solutions. |
Use Scenario: Power management for digital display controller (3.3V/1A) and microcontroller core (1.2V/1.5A) in dashboard cluster with strict EMI limits. IC Role / Device Role / Timing Role: Dual-output synchronous buck providing isolated, sequenced rails with programmable frequency to avoid AM band interference. Use Value: Burst Mode™ maintains >90% efficiency at standby currents <1mA; PGOOD enables safe MCU boot sequencing. |
| Industrial PC Card Supply | Point-of-Load in Embedded Controller |
|
Use Scenario: Compact 5V-to-dual-rail conversion for PCIe Mini Card with FPGA (1.2V/1.5A) and I/O bank (3.3V/1A). IC Role / Device Role / Timing Role: High-density DC/DC solution replacing two discrete regulators; supports hot-plug detection via RUN pin control. Use Value: DFN-16 footprint (15mm²) saves >50% board area versus TSSOP-20; thermal pad ensures 43°C/W θJA in 2-layer designs. |
Use Scenario: Local regulation for ARM Cortex-M7 core (1.1V/1.5A) and DDR3 memory interface (1.5V/1A) in factory automation PLC. IC Role / Device Role / Timing Role: Precision-adjustable buck converter with 0.8V reference and ±2% VFB tolerance for stable core voltage under load transients. Use Value: Current-mode control delivers <50μs load-step response; short-circuit protection prevents field failures during I/O fault events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65270RGET | Fixed 1.2V/3.3V outputs; no programmable frequency; higher IQ (250μA) in light-load mode. | Pre-configured dual-rail for TI ecosystem; lacks phase control and independent RUN pins. | Select when fixed outputs and TI reference design compatibility outweigh flexibility needs. |
| MP2491DS-LF-Z | Single-channel only; 2A output; 0.5–2.5MHz range; no Burst Mode™; lower max input (6V). | Requires two ICs for dual-rail; simpler BOM but larger footprint and higher total IQ. | Choose for cost-sensitive, non-battery applications where dual independent control is unnecessary. |
Compared with TPS65270RGET and MP2491DS-LF-Z, the LTC3417AEDHC-2#PBF uniquely delivers independently programmable outputs, selectable light-load modes, and phase control in a thermally optimized DFN package - making it optimal for space-constrained, battery-aware dual-rail systems requiring design flexibility.
Availability
LTC3417AEDHC-2#PBF is available at Aetrix Electronics and suitable for GPS navigation systems, automotive instrumentation, and industrial PC card power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC3417AEDHC-2#PBF 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and power management semiconductors with deep expertise in precision power conversion.
The LTC3417A series was designed specifically for medium-power, space-constrained point-of-load applications demanding high efficiency, low quiescent current, and flexible dual-output configuration in automotive and portable electronics.
FAQ
What is the maximum supported switching frequency for LTC3417AEDHC-2#PBF?
The LTC3417AEDHC-2#PBF supports a maximum switching frequency of 4MHz when configured with an appropriate resistor on the FREQ pin. At this frequency, the device maintains stable current-mode operation and enables use of ultra-low-profile inductors (≤2mm height) and small ceramic capacitors, ideal for thin-profile GPS modules and automotive clusters.
How does the PHASE pin affect input capacitor stress in LTC3417AEDHC-2#PBF?
When the PHASE pin of LTC3417AEDHC-2#PBF is pulled low, CH2 operates 180° out-of-phase with CH1, reducing input RMS current by up to 30% compared to in-phase operation. This directly lowers thermal stress and ripple voltage on the input capacitor, allowing smaller capacitance values and extended capacitor lifetime in high-reliability automotive applications.
Can LTC3417AEDHC-2#PBF operate with only one channel enabled?
Yes - LTC3417AEDHC-2#PBF supports independent channel control via RUN1 and RUN2 pins. Driving RUN2 low while keeping RUN1 high enables only the 1.5A channel, reducing total quiescent current to 260–400μA (half-active mode). This capability is used in adaptive power systems like instrument clusters that dynamically disable unused rails.
What is the feedback voltage accuracy of LTC3417AEDHC-2#PBF over temperature?
The LTC3417AEDHC-2#PBF specifies a feedback reference voltage of 0.8V with ±2% tolerance (0.784V to 0.816V) over the full –40°C to +85°C operating range. This tight tolerance ensures stable output regulation across automotive temperature extremes without requiring post-production calibration.
Does LTC3417AEDHC-2#PBF require external compensation components?
Yes - LTC3417AEDHC-2#PBF uses type-II compensation networks connected to ITH1 and ITH2 pins. Each channel requires an RC network (e.g., 100kΩ + 1nF) to stabilize the current-mode loop. The datasheet provides design equations and typical values based on inductor and output capacitor selection to ensure phase margin >45° across load and line variations.
LTC3417AEDHC-2#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- Packaging:
- Tube
- 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#PBF FAQ
1.How can I place an order for LTC3417AEDHC-2#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3417AEDHC-2#PBF 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#PBF reliable?
The price and inventory of LTC3417AEDHC-2#PBF 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#PBF is usually 5 days.
3.What payment methods are accepted for LTC3417AEDHC-2#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3417AEDHC-2#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3417AEDHC-2#PBF?
LTC3417AEDHC-2#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3417AEDHC-2#PBF 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#PBF?
For technical support, including LTC3417AEDHC-2#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3417AEDHC-2#PBF requirements.
6.How does Aetrix verify that LTC3417AEDHC-2#PBF is sourced from the original manufacturer or authorized distributors?
All LTC3417AEDHC-2#PBF 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#PBF meets industry standards.
7.What is the process for return or replacement of LTC3417AEDHC-2#PBF?
All LTC3417AEDHC-2#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3417AEDHC-2#PBF, 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#PBF part is unused and in its original packaging.
Return procedure for LTC3417AEDHC-2#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3417AEDHC-2#PBF 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…
