My Inquiry
My Account
Analog Devices Inc. LT8606BEDC#TRMPBF
- Part No.:
- LT8606BEDC#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT8606BEDC#TRMPBF.pdf
- Description:
- IC REG BUCK ADJ 350MA 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,688
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT8606BEDC#TRMPBF from Analog Devices is a 42V, 350mA synchronous step-down regulator in an 8-pin 2mm × 2mm DFN package, featuring 2.5µA quiescent current in Burst Mode, 35ns minimum on-time, and internal compensation for fast transient response. It delivers regulated 3.3V or 5V output in automotive and industrial power rails where ultra-low IQ and low EMI are critical.
For engineers reviewing the LT8606BEDC#TRMPBF datasheet, LT8606BEDC#TRMPBF pinout, LT8606BEDC#TRMPBF application, or LT8606BEDC#TRMPBF equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed automotive-grade thermal performance (–40°C to 125°C), and two rigorously cross-checked alternative parts with documented functional differences.
Technical Context
The LT8606BEDC#TRMPBF implements peak current mode control with internal 0.778V feedback reference and fixed-frequency PWM architecture programmable from 200kHz to 2.2MHz via RT resistor. Its DFN variant omits SYNC and TR/SS pins, permanently configuring it for pulse-skipping operation-distinct from the MSOP's selectable modes.
It integrates top and bottom NMOS power switches (375mΩ / 240mΩ typical RDS(ON)), supports dropout operation near 100% duty cycle, and features ±8.5% power-good monitoring with open-drain PG output. The exposed-pad GND enhances thermal dissipation (θJA = 102°C/W) and must be soldered to PCB ground plane.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 42V - supports wide-range industrial and automotive battery inputs including cold-crank (6V) and load-dump (40V+). |
| Quiescent Current | 2.5µA in regulation - enables >10-year battery life in always-on IoT sensors and telematics modules. |
| Output Current | 350mA continuous - sufficient for powering microcontrollers, CAN transceivers, and analog front-ends without external boost. |
| Switching Frequency | 200kHz to 2.2MHz - allows selection of compact 2.2MHz magnetics (e.g., 10µH XFL3010) while avoiding AM radio band. |
| Min On-Time | 35ns - enables high VIN/VOUT ratios (e.g., 24V→3.3V) without pulse skipping at full frequency. |
| Feedback Reference | 0.778V ±1.5% - sets output accuracy; combined with 1% FB resistors yields ≤±2% total VOUT tolerance over temp. |
| Power-Good Threshold | ±8.5% of VFB - ensures reliable system reset assertion only when output is within safe operating window. |
Pinout & Package
LT8606BEDC#TRMPBF uses an 8-pin, 2mm × 2mm plastic DFN package with exposed thermal pad (Pin 9 = GND). The package lacks SYNC and TR/SS pins-unlike MSOP variants-resulting in fixed pulse-skipping operation and no soft-start/tracking capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST | Bootstrap supply for high-side gate driver | Requires 0.1µF ceramic capacitor to SW; failure causes top-FET drive loss and regulation failure. |
| SW | Switch node connecting internal FETs to inductor | High di/dt node; must be minimized on PCB to reduce EMI and switching losses. |
| INTVCC | Internal 3.5V LDO output for gate drivers and logic | Must be bypassed with ≥1µF low-ESR ceramic; external loading degrades efficiency and stability. |
| RT | Resistor-programmed oscillator frequency input | Connects to GND via resistor (e.g., 18.2kΩ → 2MHz); open or short causes undefined fSW. |
| EN/UV | Enable and input undervoltage lockout input | 1.05V rising threshold; used to disable converter below battery cutoff (e.g., 9V for 12V systems). |
| VIN | Main input power supply | Must be locally bypassed with low-ESR capacitor; shared with BST capacitor return path. |
| PG | Open-drain power-good status output | Pulled low when VOUT is within ±8.5% of target; requires external pull-up for MCU reset signaling. |
| FB | Feedback voltage sense input | Regulated to 0.778V; connects to resistor divider from VOUT; 10pF phase lead recommended for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Pulse-Skipping Mode (B-version) | Fixed operational mode for LT8606BEDC#TRMPBF-enables faster light-load response vs Burst Mode but increases IQ to ~500µA. |
| AEC-Q100 Qualified | Rated for automotive applications (Grade E, –40°C to 125°C junction), with validated reliability under temperature cycling and HTOL stress. |
| Low EMI Spread Spectrum | Not available on DFN B-version-only present on MSOP with SYNC tied high; DFN relies on silent switcher topology and layout best practices. |
| Fast Minimum On-Time | 35ns enables high-step-down ratios (e.g., 36V→3.3V @ 2MHz) without frequency foldback or instability. |
| Integrated Power Switches | Top/bottom NMOS with 375mΩ/240mΩ RDS(ON) eliminate external MOSFETs and gate drivers-reducing BOM count and layout area. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Node Power |
|---|---|
Use Scenario: Powering LIN transceivers, door-lock actuators, and ambient light sensors from 12V battery with cold-crank survival. IC Role / Device Role / Timing Role: Primary 3.3V/5V buck regulator delivering stable rail during 6V–42V transients; PG asserts MCU reset if VOUT drifts >±8.5%. Use Value: 2.5µA IQ extends battery standby time beyond 10 years; 35ns min-on-time maintains regulation during 24V→3.3V conversion at full 2MHz. | Use Scenario: Supplying ultra-low-power wireless sensor nodes (e.g., LoRaWAN, NB-IoT) deployed in remote infrastructure. IC Role / Device Role / Timing Role: Always-on step-down converter enabling energy harvesting or coin-cell operation; FB divider current minimized to preserve µA-level sleep current. Use Value: Pulse-skipping mode ensures rapid load-step recovery (<10µs) for burst transmissions; DFN package fits <10mm² PCB area. |
| Medical Portable Diagnostic Device | Rail-to-Rail Industrial PLC I/O Module |
Use Scenario: Generating isolated 5V and 3.3V rails for ADCs, op-amps, and Bluetooth LE radios in handheld ultrasound units. IC Role / Device Role / Timing Role: Secondary non-isolated buck supplying precision analog and digital domains; EN/UV monitors main battery health before enabling subsystems. Use Value: Internal compensation eliminates external compensation components; ±2% output accuracy meets medical-grade signal chain requirements. | Use Scenario: Powering 24V fieldbus interface ICs (RS-485, CAN FD) and FPGA configuration memory in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: High-input-voltage buck converting 24V/48V bus to 3.3V logic rail; PG synchronizes FPGA configuration sequence with power stabilization. Use Value: 42V absolute max rating withstands 48V bus surges; exposed thermal pad sustains 350mA at 70°C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT8606EDC#TRMPBF | Same DFN package and pinout, but A-version configured for Burst Mode (not pulse-skipping); 1.7µA IQ vs 2.5µA. | Preferred for battery-powered applications requiring lowest possible IQ; unsuitable where fast light-load transient response is critical. | Select LT8606EDC#TRMPBF only if Burst Mode's 10mVP-P ripple and slower load-step recovery are acceptable. |
| LT8607EDC#TRMPBF | Pin-compatible DFN upgrade with 500mA output, lower RDS(ON) (250mΩ/160mΩ), and same 2.5µA IQ; adds spread spectrum on SYNC-capable MSOP variant. | Supports higher-current loads (e.g., multi-core MCUs) without redesign; DFN version lacks SYNC but retains pulse-skipping. | Choose LT8607EDC#TRMPBF when future-proofing for >350mA loads or needing improved thermal margin at full load. |
Compared with LT8606EDC#TRMPBF, the LT8606BEDC#TRMPBF trades 0.8µA higher quiescent current for significantly improved light-load transient response due to pulse-skipping operation; versus LT8607EDC#TRMPBF, it offers cost and footprint advantage for 350mA-class designs where headroom is not required.
Availability
LT8606BEDC#TRMPBF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, portable medical diagnostics, and rail-to-rail PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT8606BEDC#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT8606/LT8606B product line delivers compact, high-efficiency synchronous buck regulators optimized for ultra-low quiescent current and low-EMI operation in space-constrained automotive and industrial power systems.
FAQ
What is the guaranteed operating temperature range for LT8606BEDC#TRMPBF?
The LT8606BEDC#TRMPBF is rated for –40°C to +125°C junction temperature and is AEC-Q100 qualified for automotive use. This range is validated per Analog Devices' Grade E specification, ensuring reliable operation in engine bay and under-hood environments where ambient temperatures exceed 85°C.
Does LT8606BEDC#TRMPBF support external clock synchronization?
No, LT8606BEDC#TRMPBF does not support external clock synchronization. As a DFN-package B-version part, it lacks the SYNC pin entirely and operates exclusively in pulse-skipping mode. Synchronization capability is only available on MSOP variants (e.g., LT8606BMSE#TRPBF) with dedicated SYNC functionality.
What is the feedback reference voltage of LT8606BEDC#TRMPBF and how does it affect output accuracy?
The LT8606BEDC#TRMPBF regulates the FB pin to 0.778V ±1.5% over temperature and line. When paired with 1% FB resistors, total output voltage error remains ≤±2%, making it suitable for precision analog and digital rails in medical and test equipment where tight regulation is mandatory.
How does the LT8606BEDC#TRMPBF differ from the standard LT8606EDC#TRMPBF?
The LT8606BEDC#TRMPBF is the pulse-skipping variant, while LT8606EDC#TRMPBF is the Burst Mode variant. Both share identical DFN packaging and pinout, but differ in internal configuration: LT8606BEDC#TRMPBF delivers faster light-load transient response at the cost of higher quiescent current (~2.5µA vs ~1.7µA), and cannot enter Burst Mode.
Can LT8606BEDC#TRMPBF be used in a 48V industrial system?
Yes, LT8606BEDC#TRMPBF supports input voltages up to 42V continuously and withstands 48V transients per its absolute maximum rating (VIN ≤ 42V). For sustained 48V operation, a front-end clamp or pre-regulator is required-but it reliably handles 42V nominal buses found in telecom and industrial 24V/48V systems.
LT8606BEDC#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 12V
- Current - Output:
- 350mA
- Frequency - Switching:
- 200kHz ~ 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
LT8606BEDC#TRMPBF FAQ
1.How can I place an order for LT8606BEDC#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8606BEDC#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 LT8606BEDC#TRMPBF reliable?
The price and inventory of LT8606BEDC#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8606BEDC#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT8606BEDC#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8606BEDC#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8606BEDC#TRMPBF?
LT8606BEDC#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8606BEDC#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 LT8606BEDC#TRMPBF?
For technical support, including LT8606BEDC#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8606BEDC#TRMPBF requirements.
6.How does Aetrix verify that LT8606BEDC#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT8606BEDC#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 LT8606BEDC#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT8606BEDC#TRMPBF?
All LT8606BEDC#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8606BEDC#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 LT8606BEDC#TRMPBF part is unused and in its original packaging.
Return procedure for LT8606BEDC#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT8606BEDC#TRMPBF 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…
