My Inquiry
My Account
Analog Devices Inc. LTC3600EMSE#TRPBF
- Part No.:
- LTC3600EMSE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC3600EMSE#TRPBF.pdf
- Description:
- IC REG BUCK PROG 1.5A 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,062
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3600EMSE#TRPBF from Analog Devices (formerly Linear Technology) is a monolithic synchronous step-down DC/DC regulator with single-resistor output voltage programming, 1.5A output current capability, and adjustable switching frequency from 200kHz to 4MHz. It operates from 4V to 15V input, supports rail-to-rail VOUT down to 0V, and delivers up to 96% efficiency in point-of-load power supplies for portable instruments and distributed systems.
For engineers reviewing the LTC3600EMSE#TRPBF datasheet, LTC3600EMSE#TRPBF pinout, LTC3600EMSE#TRPBF application, or LTC3600EMSE#TRPBF equivalent, key selection considerations include its ±1% ISET current accuracy, constant-on-time architecture for fast transient response, internal 5V INTVCC regulator, 12-pin MSOP package with exposed thermal pad, and support for external synchronization via MODE/SYNC pin.
Technical Context
The LTC3600EMSE#TRPBF implements current-mode control with an accurate 50µA ISET current source enabling precise VOUT programming via one external resistor. Its constant-on-time architecture ensures stable high-frequency operation across wide input-output ratios while maintaining excellent load transient response.
It integrates dual N-channel MOSFETs (200mΩ top / 100mΩ bottom), features programmable frequency via RT pin, supports discontinuous or forced continuous mode via MODE/SYNC, and includes overvoltage/undervoltage protection on PGFB with open-drain PGOOD output and zero-current shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4V to 15V - supports dual Li-ion, 5V, and 12V input rails without external regulators. |
| IOUT Max | 1.5A - sufficient for FPGA core, microcontroller, or ASIC point-of-load applications. |
| fSW Range | 200kHz to 4MHz - enables compact magnetics; 1MHz default when RT tied to INTVCC. |
| ISET Accuracy | ±1% (49.5–50.5µA) - ensures tight output voltage tolerance independent of VOUT level. |
| VOUT Range | 0V to VIN – 0.5V - supports ultra-low-voltage rails and tracking configurations. |
| Efficiency | Up to 96% - minimizes thermal stress and extends battery life in portable designs. |
| Shutdown IQ | 0µA - eliminates standby power loss in always-off system states. |
Pinout & Package
The LTC3600EMSE#TRPBF is housed in a thermally enhanced 12-lead plastic MSOP package (3mm × 4.9mm) with exposed GND pad (Pin 13) requiring PCB soldering for thermal and electrical integrity. θJA = 43°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ISET (1) | Programmable reference current source | 50µA sink; sets VOUT = VISET via single resistor to GND; enables soft-start with capacitor. |
| ITH (2) | Error amplifier output & compensation node | Controls valley current threshold; supports internal (tie to INTVCC) or external R/C compensation. |
| RT (3) | Frequency programming input | Resistor to GND sets fSW from 200kHz–4MHz; tie to INTVCC for 1MHz fixed operation. |
| PGFB (4) | Power good feedback input | Monitors VOUT via resistor divider; triggers PGOOD low if outside 0.555V–0.645V window. |
| RUN (5) | Enable/shutdown control | >1.55V enables regulation; <1V disables switching; <0.4V shuts down entire IC. |
| MODE/SYNC (6) | Operation mode or sync clock input | Tie to GND for DCM; to INTVCC for forced CCM; apply external clock for synchronization (±30%). |
| SW (7) | Switch node | Connects to inductor; swings from ~–0.3V to VIN; requires low-inductance layout. |
| VIN (8) | Main input supply | 4V–15V input; must be decoupled with ≥22µF ceramic capacitor near pin. |
| BOOST (9) | Floating gate drive supply | Drives top MOSFET; connects to bootstrap capacitor between BOOST and SW. |
| INTVCC (10) | Internal 5V LDO output | Powers control circuitry and drivers; bypass with ≥1µF ceramic to GND. |
| VOUT (11) | Regulated output | Feedback node tied internally to error amp negative input; equals VISET in unity-gain configuration. |
| PGOOD (12) | Open-drain power-good indicator | Pulled low when PGFB out-of-window; requires external pull-up to INTVCC or other rail. |
| GND (13) | Power and signal ground | Exposed thermal pad; must be soldered to PCB ground plane for thermal performance and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Single-resistor VOUT programming | Eliminates feedback resistive divider; reduces BOM count and layout sensitivity while maintaining ±1% output accuracy. |
| Constant-on-time architecture | Enables stable high-frequency operation at high step-down ratios (e.g., 12V→1.2V) with sub-10µs load transient recovery. |
| Adjustable frequency (200kHz–4MHz) | Allows optimization of size-efficiency trade-off: higher fSW → smaller inductors/capacitors; lower fSW → higher peak efficiency. |
| Discontinuous/continuous mode selection | DCM at light loads improves light-load efficiency; forced CCM via MODE/SYNC ensures predictable EMI profile and ripple behavior. |
| Integrated 5V INTVCC LDO | Provides regulated gate drive and bias supply; eliminates need for external 5V rail while supporting up to 50mA RMS load. |
Applications
| Voltage Tracking Supplies | Point-of-Load Power Supplies |
|---|---|
Use Scenario: Sequencing multiple rails (e.g., core and I/O) in FPGAs or processors where VOUT must ramp in lockstep with a master reference. IC Role / Device Role / Timing Role: LTC3600EMSE#TRPBF acts as a slave regulator whose ISET pin is driven by a DAC or another regulator's output, enabling precise voltage tracking. Use Value: Achieves <±10mV tracking error across temperature and load, eliminating need for complex sequencing ICs or discrete op-amp solutions. | Use Scenario: Providing clean, efficient 1.8V or 3.3V power directly adjacent to a microcontroller or sensor in space-constrained industrial modules. IC Role / Device Role / Timing Role: LTC3600EMSE#TRPBF serves as the primary buck converter delivering regulated output with minimal external components and no external feedback network. Use Value: Reduces solution footprint by >30% vs. traditional two-resistor feedback converters, while maintaining 95%+ efficiency at 1A load. |
| Portable Instruments | Distributed Power Systems |
Use Scenario: Battery-powered handheld test equipment requiring low-noise, high-efficiency conversion from 2-cell Li-ion (6V–8.4V) to 3.3V logic rail. IC Role / Device Role / Timing Role: LTC3600EMSE#TRPBF functions as the main system regulator with shutdown IQ = 0µA to maximize battery runtime during sleep modes. Use Value: Enables >200-hour standby time on 2000mAh battery due to zero quiescent current in shutdown and high light-load efficiency in DCM. | Use Scenario: Modular telecom or server cards needing isolated, independently regulated 5V or 12V auxiliary rails derived from a common backplane supply. IC Role / Device Role / Timing Role: LTC3600EMSE#TRPBF operates as a local point-of-load converter with external clock synchronization to align switching edges across multiple boards and reduce system-level EMI. Use Value: Synchronization via MODE/SYNC pin cuts conducted EMI peaks by up to 15dB compared to free-running operation, easing EMC certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54302DDAR | Fixed 500kHz fSW; 3.5–28V VIN; 3A output; requires two-resistor feedback; no ISET-based programming. | Better suited for higher-current, wider-input applications but lacks single-resistor simplicity and rail-to-rail VOUT range. | Select TPS54302DDAR only when >1.5A output or >15V input is required; not drop-in for LTC3600EMSE#TRPBF layouts. |
| MP2315GJ-Z | 2.5–16V VIN; 1.5A; fixed 500kHz; integrated compensation; no ISET pin or external frequency programming. | Lower BOM cost and simpler layout, but no VOUT tracking, soft-start control, or synchronization capability. | Choose MP2315GJ-Z for cost-sensitive, non-critical applications where flexibility in frequency, accuracy, and sequencing is unnecessary. |
Compared with TPS54302DDAR and MP2315GJ-Z, the LTC3600EMSE#TRPBF uniquely combines single-resistor VOUT programming, ±1% ISET accuracy, 0V–VIN−0.5V output range, and external clock synchronization-making it optimal for precision, low-footprint, and EMI-controlled point-of-load designs.
Availability
LTC3600EMSE#TRPBF is available at Aetrix Electronics and suitable for voltage tracking supplies, point-of-load power supplies, and portable instrument designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for LTC3600EMSE#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, Inc. (including legacy Linear Technology products) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC3600 product line was designed specifically for high-efficiency, compact, and flexible point-of-load DC/DC conversion-emphasizing simplicity (single-resistor programming), precision (±1% ISET), and adaptability (frequency sync, mode control, and rail-to-rail output).
FAQ
What is the maximum output current supported by the LTC3600EMSE#TRPBF?
The LTC3600EMSE#TRPBF supports a continuous output current of 1.5A under typical thermal conditions with proper PCB layout and heatsinking. Its current limit is specified at 1.6A to 2.4A (typical 2A), and the device enters current-limit foldback or thermal shutdown if sustained overload occurs. Derating is recommended above 85°C ambient temperature due to its 43°C/W θJA in the MSOP package.
How does the ISET pin enable single-resistor output programming on the LTC3600EMSE#TRPBF?
The LTC3600EMSE#TRPBF features an accurate 50µA (±1%) current source connected to the ISET pin. When a resistor RSET is placed from ISET to GND, VOUT = ISET × RSET. Since the error amplifier forces VOUT to equal VISET, this creates a direct, linear relationship-eliminating the need for a feedback divider. For example, a 49.9kΩ resistor yields VOUT ≈ 2.5V.
Can the LTC3600EMSE#TRPBF operate with an output voltage of 0V?
Yes, the LTC3600EMSE#TRPBF supports true 0V output by grounding the ISET pin (RSET = 0Ω). In this configuration, VOUT regulates to 0V with 10mV minimum guaranteed output, enabling use in voltage-tracking, offset-nulling, or pre-biased start-up applications where rail-to-rail control is essential.
What is the purpose of the MODE/SYNC pin on the LTC3600EMSE#TRPBF?
The MODE/SYNC pin on the LTC3600EMSE#TRPBF serves three functions: (1) tie to GND for discontinuous conduction mode (DCM) at light loads, (2) tie to INTVCC for forced continuous conduction mode (CCM), or (3) accept an external clock signal (±30% frequency match required) to synchronize switching across multiple LTC3600EMSE#TRPBF devices and reduce system EMI.
Does the LTC3600EMSE#TRPBF require external compensation components?
No-the LTC3600EMSE#TRPBF supports both internal and external compensation. Tying the ITH pin to INTVCC activates internal compensation (100kΩ + 50pF), simplifying design. For optimized transient response or minimum output capacitance, external R/C compensation can be connected from ITH to GND-enabling full OPTI-LOOP® flexibility as documented in the LTC3600EMSE#TRPBF datasheet.
LTC3600EMSE#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 0V
- Voltage - Output (Max):
- 14.5V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-MSOP-EP
LTC3600EMSE#TRPBF FAQ
1.How can I place an order for LTC3600EMSE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3600EMSE#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 LTC3600EMSE#TRPBF reliable?
The price and inventory of LTC3600EMSE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3600EMSE#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3600EMSE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3600EMSE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3600EMSE#TRPBF?
LTC3600EMSE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3600EMSE#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 LTC3600EMSE#TRPBF?
For technical support, including LTC3600EMSE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3600EMSE#TRPBF requirements.
6.How does Aetrix verify that LTC3600EMSE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3600EMSE#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 LTC3600EMSE#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3600EMSE#TRPBF?
All LTC3600EMSE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3600EMSE#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 LTC3600EMSE#TRPBF part is unused and in its original packaging.
Return procedure for LTC3600EMSE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3600EMSE#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…
