My Inquiry
My Account
Analog Devices Inc. LTC3406AES5#TRMPBF
- Part No.:
- LTC3406AES5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC3406AES5#TRMPBF.pdf
- Description:
- IC REG BUCK ADJ 600MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,861
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3406AES5#TRMPBF from Analog Devices (formerly Linear Technology) is a high-efficiency, 1.5MHz synchronous step-down DC/DC regulator in a 5-lead TSOT-23 package, delivering up to 600mA output current with 2.5V–5.5V input range and 0.6V feedback reference. It features 20μA quiescent current, 100% duty cycle for low-dropout operation, and integrated P/N-channel MOSFETs eliminating external Schottky diodes - ideal for single Li-Ion battery-powered portable instruments and media players.
For engineers reviewing the LTC3406AES5#TRMPBF datasheet, LTC3406AES5#TRMPBF pinout, LTC3406AES5#TRMPBF application, or LTC3406AES5#TRMPBF equivalent, key selection criteria include its ±2% 0.6V reference accuracy, Burst Mode® operation for light-load efficiency, thermal shutdown protection, and compatibility with ceramic input/output capacitors in space-constrained designs.
Technical Context
The LTC3406AES5#TRMPBF employs a constant-frequency, current-mode control architecture with internal slope compensation to prevent subharmonic oscillation at duty cycles >40%. Its dual-MOSFET synchronous rectification enables high efficiency (up to 96%) without external diodes and supports seamless transition into 100% duty cycle during dropout.
Burst Mode® operation reduces quiescent current to 20μA by intermittently enabling switching cycles based on load demand, while internal soft-start (0.9ms typical) limits inrush current. The device integrates overtemperature protection and uses a proprietary scheme to maintain peak inductor current across all duty cycles despite slope compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports full discharge range of single Li-Ion cells (2.7V–4.2V). |
| Output Current | 600mA continuous - sufficient for core logic rails in portable instrumentation and modems. |
| Switching Frequency | 1.5MHz (typical) - enables use of compact 1–4.7μH inductors and low-ESR ceramic capacitors. |
| Feedback Reference | 0.6V ±2% - allows precise output programming from 0.6V to 5.5V using external resistor divider. |
| Quiescent Current | 20μA (active), ≤1μA (shutdown) - extends battery runtime in standby and sleep modes. |
| Efficiency | Up to 96% - achieved via synchronous rectification and low RDS(ON) (0.23Ω P-FET / 0.21Ω N-FET). |
| Operating Temperature | –40°C to +85°C - qualified for commercial and industrial portable equipment environments. |
Pinout & Package
Package: 5-lead TSOT-23 (ThinSOT™), 1mm profile, 2.8mm × 1.6mm footprint - optimized for ultra-thin portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (Pin 1) | Enable/Shutdown Control | Logic-high (>1.5V) enables regulation; logic-low (<0.3V) forces shutdown with ≤1μA supply current. |
| GND (Pin 2) | Power Ground Reference | Primary return path for VIN decoupling capacitor and feedback network - must be low-impedance. |
| SW (Pin 3) | Switch Node | Connection point between internal P- and N-channel MOSFET drains - routes high di/dt current to external inductor. |
| VIN (Pin 4) | Main Input Supply | Accepts 2.5V–5.5V input; requires ≥2.2μF ceramic decoupling capacitor placed adjacent to this pin. |
| VFB (Pin 5) | Feedback Input | Senses divided output voltage; referenced to 0.6V internal bandgap - enables remote sensing and adjustable outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Synchronous Power Stage | Eliminates external Schottky diode and associated losses - improves efficiency by ~5–10% vs. asynchronous designs. |
| Burst Mode® Operation | Maintains >85% efficiency down to 10mA load - critical for battery life in intermittent-use devices like digital cameras. |
| 100% Duty Cycle Capability | Enables regulation down to VIN – ILOAD×RDS(ON) - extends usable battery life near end-of-discharge. |
| Internal Soft-Start | 0.9ms typical VOUT ramp time - prevents inrush current damage to input capacitors and upstream power sources. |
| Overtemperature Protection | Thermal shutdown activates above ~150°C junction temperature - safeguards IC during overload or poor PCB thermal design. |
Applications
| Cellular Telephones | Wireless Modems |
|---|---|
Use Scenario: Core voltage regulation for baseband processors and RF transceivers powered by single Li-Ion cells. IC Role / Device Role / Timing Role: Primary buck converter supplying 1.2V/1.8V/2.5V logic rails with fast transient response to burst data transmission loads. Use Value: 96% peak efficiency and 20μA quiescent current directly extend talk time and standby duration. |
Use Scenario: Point-of-load regulation for DSL/Wi-Fi chipset subsystems in compact residential gateways. IC Role / Device Role / Timing Role: High-frequency synchronous buck regulator delivering stable 3.3V/1.8V from 5V USB or wall adapter input. Use Value: 1.5MHz switching allows miniature 2.2μH inductors and eliminates audible noise - critical for consumer-facing equipment. |
| Digital Still Cameras | Portable Instruments |
Use Scenario: Power management for image sensor, DSP, and LCD backlight drivers during short-duration high-current capture bursts. IC Role / Device Role / Timing Role: Fast-transient, low-noise DC/DC converter supporting rapid on/off cycling and low EMI emission. Use Value: Burst Mode® maintains >80% efficiency at 1–10mA standby current - preserves battery charge between photo sessions. |
Use Scenario: Main system rail generation in handheld test equipment (e.g., multimeters, oscilloscope probes) operating from rechargeable batteries. IC Role / Device Role / Timing Role: Compact, thermally robust buck regulator providing clean 3.3V/5V supplies for precision analog front-ends and microcontrollers. Use Value: TSOT-23 package and ceramic-capacitor compatibility enable PCB area reduction without sacrificing stability or thermal margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 1.8–6.5V input, 3MHz switching, 350mA output, 17μA IQ - higher frequency but lower current rating. | Best suited for ultra-low-power MCU cores where <400mA load suffices and board space favors smaller inductors. | Select when prioritizing minimal solution size over maximum output current capability. |
| MAX17552ATP+T | 4.5–40V input, 600mA output, 2.2MHz, integrated compensation - wider VIN range but larger 16-pin TQFN package. | Targeted at industrial sensors or automotive body electronics requiring extended input voltage tolerance. | Choose only if input exceeds 5.5V or if AEC-Q200 qualification is required. |
Compared with TPS62231DRYR and MAX17552ATP+T, the LTC3406AES5#TRMPBF offers optimal balance of 600mA output, 2.5–5.5V input alignment with Li-Ion systems, and ultra-small TSOT-23 footprint - making it the preferred choice for cost- and space-sensitive portable consumer electronics.
Availability
LTC3406AES5#TRMPBF is available at Aetrix Electronics and suitable for cellular telephones, wireless modems, and portable instruments requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LTC3406AES5#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 acquired Linear Technology in 2017 and continues its legacy of high-performance analog and power management ICs with rigorous process control and reliability validation.
The LTC3406AES5#TRMPBF belongs to Linear's LTC® monolithic synchronous buck regulator family, designed specifically for battery-powered portable electronics demanding high efficiency, low quiescent current, and minimal PCB footprint.
FAQ
What is the maximum output current capability of the LTC3406AES5#TRMPBF?
The LTC3406AES5#TRMPBF delivers up to 600mA of continuous output current under typical conditions (VIN = 3.6V, VOUT = 1.8V, TA = 25°C). Peak inductor current capability reaches 1.25A, but sustained output is limited by thermal dissipation in the TSOT-23 package - derating is required above 85°C ambient or at high duty cycles near dropout.
Does the LTC3406AES5#TRMPBF require an external Schottky diode?
No, the LTC3406AES5#TRMPBF does not require an external Schottky diode because it integrates both P-channel and N-channel synchronous power MOSFETs. This internal synchronous rectification improves conversion efficiency by eliminating forward-voltage diode losses and simplifies PCB layout by reducing component count.
What is the purpose of the RUN pin on the LTC3406AES5#TRMPBF?
The RUN pin on the LTC3406AES5#TRMPBF provides enable/disable control: pulling it above 1.5V enables regulation, while pulling it below 0.3V places the device in shutdown mode drawing ≤1μA supply current. It must not be left floating, as undefined logic levels may cause erratic startup or increased leakage.
Can the LTC3406AES5#TRMPBF operate with ceramic input and output capacitors?
Yes, the LTC3406AES5#TRMPBF is fully compatible with ceramic input and output capacitors due to its voltage-mode-independent control loop. X5R or X7R dielectric types are recommended for stable capacitance across temperature and bias voltage - enabling low-ripple, compact solutions without ESR-dependent compensation.
What is the feedback reference voltage of the LTC3406AES5#TRMPBF and how is output voltage set?
The LTC3406AES5#TRMPBF uses a precise 0.6V ±2% internal feedback reference voltage. Output voltage is programmed externally using a resistive divider: VOUT = 0.6V × (1 + R2/R1), where R1 connects from VOUT to VFB and R2 connects from VFB to GND - enabling adjustable outputs from 0.6V to 5.5V.
LTC3406AES5#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 600mA
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LTC3406AES5#TRMPBF FAQ
1.How can I place an order for LTC3406AES5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3406AES5#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 LTC3406AES5#TRMPBF reliable?
The price and inventory of LTC3406AES5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3406AES5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3406AES5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3406AES5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3406AES5#TRMPBF?
LTC3406AES5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3406AES5#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 LTC3406AES5#TRMPBF?
For technical support, including LTC3406AES5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3406AES5#TRMPBF requirements.
6.How does Aetrix verify that LTC3406AES5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3406AES5#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 LTC3406AES5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3406AES5#TRMPBF?
All LTC3406AES5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3406AES5#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 LTC3406AES5#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3406AES5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3406AES5#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…
