My Inquiry
My Account
Texas Instruments TPS61377RYHR
- Part No.:
- TPS61377RYHR
- Manufacturer:
- Texas Instruments
- Package:
- 13-PowerVFQFN
- Datasheet:
-
TPS61377RYHR.pdf
- Description:
- IC REG BOOST ADJ 13VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,283
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS61377RYHR from Texas Instruments is a synchronous boost converter IC designed for high-voltage DC-DC step-up applications, delivering up to 25 V output from 2.9–23 V input with 6-A peak switching current capability, 650-kHz fixed switching frequency, and programmable peak current limit (1.5–6 A). It serves as the primary power stage in industrial and appliance systems requiring compact, efficient high-voltage rail generation.
For engineers reviewing the TPS61377RYHR datasheet, TPS61377RYHR pinout, TPS61377RYHR application, or TPS61377RYHR equivalent, key selection considerations include its adaptive constant off-time control topology, dual-mode light-load operation (PFM/PWM), integrated 40-mΩ high-side and 50-mΩ low-side MOSFETs, 70-µA quiescent current, and 2.5-mm × 2.0-mm HotRod™ Lite VQFN-13 package.
Technical Context
The TPS61377RYHR employs adaptive constant off-time peak current control to maintain quasi-constant switching frequency across input/output voltage ratios while enabling fast transient response. Its internal architecture integrates a 40-mΩ high-side rectifier and 50-mΩ low-side switch, eliminating external diode losses and supporting up to 96.0% efficiency at 12-VIN/24-VOUT/1.5-A.
Light-load behavior is configurable via the MODE pin: auto PFM mode maximizes efficiency down to µA-level loads with variable frequency, while forced PWM mode maintains 650-kHz operation to suppress audible noise and EMI concerns. Protection includes cycle-by-cycle overcurrent, output overvoltage (27.5-V threshold), and thermal shutdown (150°C trip).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9 V to 23 V - supports wide-range battery and industrial bus inputs without pre-regulation |
| Output Voltage Range | 4.5 V to 25 V - enables direct generation of 12-V, 15-V, 24-V rails from single-cell Li-ion or 12-V systems |
| Peak Switching Current Limit | Programmable 1.5 A to 6 A via ILIM pin resistor - allows precise inductor sizing and fault-current tailoring |
| Switching Frequency | 650 kHz - balances efficiency, EMI, and passive component size; stable across temperature and load |
| Quiescent Current | 70 µA typical - minimizes standby power loss in always-on industrial subsystems |
| Efficiency | 96.0% at 12-VIN/24-VOUT/1.5-A - reduces thermal stress and enables high-power density in 2.5-mm × 2.0-mm footprint |
| Package | VQFN-13 (RYH) with 2.5-mm × 2.0-mm body - HotRod™ Lite construction lowers parasitic inductance for cleaner switching waveforms |
Pinout & Package
VQFN-13 (RYH) package: 2.5 mm × 2.0 mm, 0.4-mm pitch, exposed thermal pad. Optimized for low-inductance layout and thermal performance in space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input supply | Accepts 2.9–23 V; powers internal LDO when ≥5.5 V, else draws from VOUT |
| EN/UVLO | Enable and programmable UVLO input | Logic-enable with accurate 0.813-V internal reference; supports resistor-divider UVLO programming with 200-mV hysteresis |
| MODE | Light-load operating mode select | Logic-high = forced PWM (fixed 650-kHz); logic-low = auto PFM (efficiency-optimized variable frequency) |
| VSENSE | Output voltage sense input | Direct connection to regulated output node for OVP detection; triggers shutdown at 27.5 V (typ) |
| VOUT | Boost output power rail | Delivers up to 25 V at multi-ampere loads; requires external output capacitor (10–2000 µF) |
| SW | Switching node | Connects internal low-side FET drain and high-side FET source; drives external inductor and bootstrap network |
| PGND | Power ground | High-current return path for low-side FET and input capacitor; must be separated from AGND for noise immunity |
| FB | Feedback input | Senses resistor divider output; regulates VOUT to 1.0-V internal reference with ±1.5% tolerance over temperature |
| COMP | Error amplifier output | External compensation node (RC/CC network) for loop stability across inductor/capacitor variations |
| ILIM | Peak current limit programming | Resistor-to-AGND sets 1.5–6-A limit per IPEAK = 0.54 V × 160 kΩ / RLIM |
| VCC | Internal LDO output | 4.8-V regulated supply for gate drivers; requires ≥1-µF ceramic decoupling to AGND |
| AGND | Analog ground | Reference for FB, COMP, ILIM, MODE, EN/UVLO; must be star-connected to PGND at single point |
| BOOT | High-side gate driver supply | Connected to SW via 0.47–1-µF ceramic capacitor; provides floating bias for high-side N-MOSFET turn-on |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive constant off-time control | Enables fast line/load transients with minimal output capacitance and no external compensation dependency on input voltage |
| Dual-mode light-load operation | Auto PFM extends battery life in standby; forced PWM eliminates acoustic noise and EMI discontinuities in sensitive environments |
| Integrated 40-mΩ high-side + 50-mΩ low-side switches | Eliminates external Schottky losses and PCB area; enables >95% efficiency at mid-load without discrete FETs |
| Programmable 1.5–6-A peak current limit | Allows optimization of inductor size, saturation margin, and short-circuit protection level per application requirements |
| 70-µA quiescent current + 1.25-µA shutdown | Supports ultra-low-power wake-on-event architectures in industrial controllers and smart appliances |
| Comprehensive protection suite | Includes cycle-by-cycle overcurrent, output overvoltage (27.5 V), thermal shutdown (150°C), and UVLO with hysteresis |
Applications
| Industrial Power Systems | Smart Appliances |
|---|---|
|
Use Scenario: Generating 24-V control rails from 12-V battery or 9–16-V automotive-grade input in PLC I/O modules and sensor hubs. IC Role / Device Role / Timing Role: Primary synchronous boost regulator providing isolated, regulated 24-V output with tight load regulation and fast transient response. Use Value: Enables single-supply design with 96.0% efficiency at 1.5-A load, reducing thermal management complexity in sealed enclosures. |
Use Scenario: Powering display backlight drivers, motor control ICs, and communication interfaces in refrigerators and washing machines. IC Role / Device Role / Timing Role: High-voltage DC-DC converter supplying stable 12-V or 15-V rails from main 5-V or 3.3-V system bus. Use Value: Programmable current limit prevents inrush damage during compressor startup; 70-µA IQ extends standby time between Wi-Fi polling cycles. |
| Portable Test Equipment | LED Driver Bias Supply |
|
Use Scenario: Providing 16-V analog front-end supply in handheld multimeters and oscilloscope probes powered by Li-ion batteries. IC Role / Device Role / Timing Role: Compact, high-efficiency boost converter delivering precise output voltage with low ripple under dynamic load steps. Use Value: 2.5-mm × 2.0-mm VQFN package fits within tight board real estate; soft-start (4 ms) prevents measurement offset during power-on. |
Use Scenario: Generating constant-current LED string bias voltage (e.g., 18–22 V) from 5-V USB or 12-V wall adapter input. IC Role / Device Role / Timing Role: Regulated boost stage feeding downstream constant-current LED driver ICs or linear regulators. Use Value: Output overvoltage protection (27.5 V) safeguards LEDs against open-circuit faults; PFM mode maintains >85% efficiency at dimmed (low-current) states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | Lower max output (12.6 V), higher max current (10 A), 1-MHz switching, smaller 2.0-mm × 2.0-mm QFN | Better suited for 5-V→12-V high-current apps; lacks 25-V capability and programmable current limit | Select TPS61088RHLR only if output ≤12.6 V and peak current >6 A is required; not drop-in for 24-V systems |
| MAX20499AATG+T | Wider VIN (4.5–42 V), fixed 2.5-A current limit, 2.2-MHz switching, integrated compensation | Targets automotive 12-V→24-V conversion; no PFM mode, higher IQ (120 µA), larger 3-mm × 3-mm TQFN | Choose MAX20499AATG+T for 42-V input tolerance and AEC-Q100 qualification; not suitable for sub-4.5-V start-up or ultra-low-IQ needs |
Compared with TPS61377RYHR, TPS61088RHLR offers higher current but lower voltage headroom, while MAX20499AATG+T provides automotive-grade robustness at the cost of programmability and quiescent current. TPS61377RYHR uniquely balances 25-V output, 6-A programmability, and 70-µA IQ in a 2.5-mm × 2.0-mm footprint.
Availability
TPS61377RYHR is available at Aetrix Electronics and suitable for industrial power systems, smart appliances, portable test equipment, and LED driver bias supply applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS61377RYHR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-reliability power conversion ICs.
The TPS61377RYHR belongs to TI's high-voltage synchronous boost converter product line, engineered for compact, efficient DC-DC step-up in industrial, appliance, and portable equipment where wide input range, programmable current limiting, and ultra-low quiescent current are critical.
FAQ
What is the maximum output voltage supported by the TPS61377RYHR?
The TPS61377RYHR supports an output voltage range of 4.5 V to 25 V. This is achieved through external resistor feedback (FB pin) referencing a precise 1.0-V internal bandgap. The device includes output overvoltage protection that triggers at 27.5 V (typical), ensuring safe operation even under feedback resistor failure or transient conditions. The 25-V upper limit reflects the absolute maximum rating for the VOUT and VSENSE pins.
How is the peak switching current limit programmed on the TPS61377RYHR?
The peak switching current limit of the TPS61377RYHR is set by an external resistor (RLIM) connected between the ILIM pin and AGND. Using the formula IPEAK = 0.54 V × 160 kΩ / RLIM, a 14.4-kΩ resistor yields ~5.4 A (typical), while 57.6 kΩ gives ~1.35 A (typical). The ILIM pin must never be left floating or tied to VCC, and the resistor value must be selected to stay within the 1.5–6-A specified range to ensure reliable cycle-by-cycle overcurrent protection.
Does the TPS61377RYHR support automatic mode switching between PFM and PWM?
No-the TPS61377RYHR does not auto-switch modes. The MODE pin selects one of two fixed operational modes: logic-low enables auto PFM (variable frequency, highest light-load efficiency), and logic-high forces continuous PWM (fixed 650-kHz, no audible noise). There is no internal decision logic to toggle between them dynamically; the mode is static per pin state and remains active across load changes unless externally reconfigured.
What package type and thermal characteristics apply to the TPS61377RYHR?
The TPS61377RYHR uses the RYH package: a 13-pin HotRod™ Lite VQFN measuring 2.5 mm × 2.0 mm with 0.4-mm pitch and an exposed thermal pad. Its junction-to-board thermal resistance (RθJB) is 15.4°C/W, and junction-to-ambient (RθJA) is 64.9°C/W with standard 2-layer JEDEC layout. These values assume proper PCB copper pour under the thermal pad and are critical for maintaining <125°C operating junction temperature at full 6-A peak current.
Can the TPS61377RYHR operate with input voltages below 3 V?
No-the TPS61377RYHR has a minimum recommended input voltage of 2.9 V, with absolute minimum rating of –0.3 V and maximum of 25 V. Operation below 2.9 V risks failure to start due to insufficient headroom for the internal LDO and gate drivers. The EN/UVLO pin can be used to program a custom turn-on threshold above 2.9 V, but the device will not function reliably at sustained VIN < 2.9 V, even if the EN pin is asserted.
TPS61377RYHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 13-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.9V
- Voltage - Input (Max):
- 23V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- 25V
- Current - Output:
- -
- Frequency - Switching:
- 650kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 13-VQFN-HR (2.5x2)
TPS61377RYHR FAQ
1.How can I place an order for TPS61377RYHR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61377RYHR 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 TPS61377RYHR reliable?
The price and inventory of TPS61377RYHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61377RYHR is usually 5 days.
3.What payment methods are accepted for TPS61377RYHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61377RYHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61377RYHR?
TPS61377RYHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61377RYHR 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 TPS61377RYHR?
For technical support, including TPS61377RYHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61377RYHR requirements.
6.How does Aetrix verify that TPS61377RYHR is sourced from the original manufacturer or authorized distributors?
All TPS61377RYHR 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 TPS61377RYHR meets industry standards.
7.What is the process for return or replacement of TPS61377RYHR?
All TPS61377RYHR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61377RYHR, 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 TPS61377RYHR part is unused and in its original packaging.
Return procedure for TPS61377RYHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61377RYHR 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…
