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Analog Devices Inc. LTC3560ES6#TRPBF
- Part No.:
- LTC3560ES6#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC3560ES6#TRPBF.pdf
- Description:
- IC REG BUCK ADJ 800MA TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,072
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Product details
Overview
LTC3560ES6#TRPBF from Analog Devices (formerly Linear Technology) is a monolithic synchronous step-down DC/DC regulator in a 6-lead TSOT-23 package, delivering up to 800mA output current with 2.25MHz fixed switching frequency, 0.6V feedback reference, and 2.5V–5.5V input range - optimized for single-cell Li-Ion/Li-Polymer portable power rails.
For engineers reviewing the LTC3560ES6#TRPBF datasheet, LTC3560ES6#TRPBF pinout, LTC3560ES6#TRPBF application, or LTC3560ES6#TRPBF equivalent, key selection criteria include its Burst Mode™ operation (16μA IQ), 100% duty cycle low-dropout capability, ±2% output voltage accuracy, internal P/N-channel MOSFETs eliminating external diodes, and synchronization support from 1MHz to 3MHz.
Technical Context
The LTC3560ES6#TRPBF implements a constant-frequency, current-mode control architecture with integrated high-side P-channel and low-side N-channel MOSFETs. Its peak-current sensing loop uses slope-compensated PWM with patented compensation to maintain full 1.5A peak inductor current capability across all duty cycles, including 100% dropout operation.
It supports three operating modes via the SYNC/MODE pin: Burst Mode™ (grounded), pulse-skipping PWM (tied to VIN or >1.5V), and external clock synchronization (1–3MHz). RUN pin enables precise enable/disable control with <1μA shutdown current, while VFB accepts feedback from a resistive divider referenced to the stable 0.6V internal bandgap.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports full regulation across single Li-Ion/Li-Polymer battery discharge curve (3.0V–4.2V typical). |
| Output Current | Up to 800mA continuous - sufficient for core logic rails in cellular handsets, media players, and DSL modems. |
| Switching Frequency | 2.25MHz (typical), synchronizable 1–3MHz - enables use of compact 1–3.3μH inductors and 10μF ceramic capacitors. |
| Feedback Reference | 0.6V ±2% - allows precise programming of output voltages as low as 0.6V (e.g., 1.2V, 1.8V, 2.5V, 3.3V) with standard resistor ratios. |
| Quiescent Current | 16μA in Burst Mode™ - extends battery runtime in standby/sleep states without compromising transient response. |
| Shutdown Current | <1μA - ensures negligible battery drain during system off-state, critical for always-on portable devices. |
| RDS(ON) (P-FET / N-FET) | 0.23Ω / 0.21Ω (typ.) at 100mA - minimizes conduction loss and thermal rise under load, especially in dropout. |
Pinout & Package
Package: 6-lead ThinSOT™ (TSOT-23), 1mm profile, RoHS-compliant, moisture sensitivity level 1 (MSL1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (Pin 1) | Enable/Shutdown Control Input | Logic-high (>1.5V) enables regulation; logic-low (<0.3V) forces full shutdown with <1μA supply current - must not be left floating. |
| GND (Pin 2) | Power Ground Reference | Primary return path for VIN, SW, and internal circuitry - requires low-inductance connection to PCB ground plane. |
| SW (Pin 3) | Switch Node | Connection point for external inductor - carries high dv/dt square wave; must be routed short and wide to minimize EMI and switching loss. |
| VIN (Pin 4) | Main Power Input | Supplies internal circuitry and high-side switch - requires ≥10μF ceramic decoupling capacitor placed adjacent to pin. |
| VFB (Pin 5) | Feedback Input | Monitors output voltage via external resistor divider; regulates output to 0.6V at this pin - enables remote sensing and precision trimming. |
| SYNC/MODE (Pin 6) | Mode Selection & Clock Sync | Ground = Burst Mode™; VIN/high = pulse-skipping PWM; 1–3MHz external clock = synchronized PWM - no pull-up/down required. |
Key Features
| Feature | Design Value |
|---|---|
| Burst Mode™ Operation | Reduces quiescent current to 16μA while maintaining fast wake-up and tight output regulation - ideal for intermittent-load portable systems. |
| 100% Duty Cycle Capability | Enables low-dropout operation down to VOUT + ILOAD × RDS(ON), extending usable battery life near end-of-discharge. |
| Internal Synchronous MOSFETs | Eliminates need for external Schottky diode - improves efficiency by ~5–10% and reduces BOM count and board area. |
| Ceramic Capacitor Stability | Control loop is ESR-independent - supports ultra-low-ESR ceramic input/output caps for minimal ripple and compact layout. |
| Overtemperature Protection | Thermal shutdown activates at ~150°C junction temperature - prevents permanent damage during sustained overload or poor heatsinking. |
Applications
| Cellular Telephones | Wireless Modems |
|---|---|
Use Scenario: Powering baseband processor core voltage (1.2V) and RF transceiver bias rails (2.8V) from a single Li-Polymer cell. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated, low-noise DC power with dynamic load response. Use Value: Burst Mode™ extends talk time by minimizing idle current; 2.25MHz switching avoids interference with cellular bands (700MHz–2.7GHz). |
Use Scenario: Supplying 3.3V I/O and 1.8V memory rails in 4G LTE or Wi-Fi 6 client modems with aggressive size constraints. IC Role / Device Role / Timing Role: Compact, high-efficiency step-down converter enabling single-cell operation without external diode or large magnetics. Use Value: TSOT-23 footprint saves >30% board area vs. SO-8 alternatives; 0.6V reference simplifies multi-rail sequencing via resistor dividers. |
| Digital Still Cameras | Portable Instruments |
Use Scenario: Delivering 2.5V sensor bias and 1.2V image processor core voltage during burst capture mode with rapid load transients. IC Role / Device Role / Timing Role: High-transient-response buck regulator handling >500mA load steps within 10μs while maintaining <20mVP-P ripple. Use Value: Current-mode control ensures stable operation across wide input (2.7V–4.2V) and load (1mA–800mA) ranges - no loop compensation required. |
Use Scenario: Powering microcontroller, ADC, and display driver in handheld test equipment powered by rechargeable Li-Ion packs. IC Role / Device Role / Timing Role: Main system power IC providing clean, efficient, and thermally robust DC/DC conversion in sealed enclosures. Use Value: 1mm profile fits thin industrial housings; ±2% output accuracy meets precision analog supply requirements without post-regulation. |
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 | 2.25MHz, 600mA, 0.6V ref, but only 2.05–6.0V input range; lacks 100% duty cycle and Burst Mode™ | Lower max current and no true low-dropout mode - unsuitable for deep-discharge Li-Ion systems below 2.5V | Choose when higher input voltage margin exists and 600mA suffices; verify thermal performance at 100% duty cycle |
| MAX17503GCU+T | 2.2MHz, 1A, 0.8V ref, 4.5–60V input - wider range but larger 10-pin TDFN; no Burst Mode™, higher IQ (25μA) | Designed for industrial/high-voltage inputs, not portable battery rails; requires external compensation | Use only in non-battery, wide-input applications; avoid for space-constrained or ultra-low-IQ designs |
Compared with TPS62231DRYR and MAX17503GCU+T, the LTC3560ES6#TRPBF uniquely combines 800mA capability, 2.5V minimum input, 100% duty cycle, and sub-20μA IQ in a 6-pin TSOT-23 - making it the only direct fit for compact, single-cell Li-Ion systems demanding both efficiency and dropout headroom.
Availability
LTC3560ES6#TRPBF is available at Aetrix Electronics and suitable for cellular telephones, wireless modems, digital still cameras, and portable instruments requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LTC3560ES6#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 full technical and manufacturing continuity for the LTC portfolio - recognized globally for high-performance analog, power management, and signal conditioning ICs.
The LTC3560ES6#TRPBF belongs to Linear's legacy high-efficiency, low-quiescent-current DC/DC regulator family - engineered specifically for space-constrained, battery-powered consumer and communications devices where thermal density and standby power are critical.
FAQ
What is the maximum output current capability of the LTC3560ES6#TRPBF?
The LTC3560ES6#TRPBF delivers up to 800mA continuous output current under typical conditions (TA = 25°C, VIN = 3.6V, VOUT = 1.8V). Peak inductor current is rated at 1.5A (typ.), supporting transient loads beyond steady-state rating. Derating applies at elevated ambient temperatures or low input voltages due to RDS(ON) increase and thermal limits.
Does the LTC3560ES6#TRPBF require an external Schottky diode?
No, the LTC3560ES6#TRPBF integrates both high-side P-channel and low-side N-channel MOSFETs, eliminating the need for an external Schottky diode. This reduces component count, board area, and conduction losses - improving efficiency by ~5–10% compared to asynchronous buck topologies.
How does the LTC3560ES6#TRPBF achieve low quiescent current in light-load conditions?
The LTC3560ES6#TRPBF achieves 16μA quiescent current in Burst Mode™ operation by disabling switching and most internal circuitry between energy bursts, supplying load current solely from the output capacitor. The RUN pin can further reduce supply current to <1μA in full shutdown - critical for battery longevity in portable devices.
Can the LTC3560ES6#TRPBF operate with ceramic output capacitors?
Yes, the LTC3560ES6#TRPBF is fully stable with ceramic output capacitors due to its ESR-independent current-mode control architecture. X5R or X7R dielectric types are recommended for optimal voltage and temperature stability. Ceramic caps enable <20mVP-P ripple and compact layouts without sacrificing loop stability.
What is the function of the SYNC/MODE pin on the LTC3560ES6#TRPBF?
The SYNC/MODE pin on the LTC3560ES6#TRPBF serves dual functions: grounding selects Burst Mode™ for ultra-low IQ; tying to VIN or applying >1.5V enables pulse-skipping PWM for lower ripple; applying a 1–3MHz external clock synchronizes switching and disables Burst Mode™ - preventing audible noise in audio-sensitive designs.
LTC3560ES6#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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:
- 800mA
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LTC3560ES6#TRPBF FAQ
1.How can I place an order for LTC3560ES6#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3560ES6#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 LTC3560ES6#TRPBF reliable?
The price and inventory of LTC3560ES6#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3560ES6#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3560ES6#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3560ES6#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3560ES6#TRPBF?
LTC3560ES6#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3560ES6#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 LTC3560ES6#TRPBF?
For technical support, including LTC3560ES6#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3560ES6#TRPBF requirements.
6.How does Aetrix verify that LTC3560ES6#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3560ES6#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 LTC3560ES6#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3560ES6#TRPBF?
All LTC3560ES6#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3560ES6#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 LTC3560ES6#TRPBF part is unused and in its original packaging.
Return procedure for LTC3560ES6#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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