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Texas Instruments TPS62737RGYT
- Part No.:
- TPS62737RGYT
- Manufacturer:
- Texas Instruments
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
TPS62737RGYT.pdf
- Description:
- IC REG BUCK PROG 200MA 14VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,237
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Product details
Overview
TPS62737RGYT from Texas Instruments is an ultra-low-power synchronous buck converter optimized for 200-mA output current, featuring 375-nA quiescent current in active mode, 10-nA ship-mode current, and resistor-programmable output voltage (1.3 V to VIN – 0.2 V) - deployed in energy harvesting systems powered by TEGs or solar cells.
For engineers reviewing the TPS62737RGYT datasheet, TPS62737RGYT pinout, TPS62737RGYT application, or TPS62737RGYT equivalent, this device is selected for ultra-low-IQ DC/DC regulation in battery-constrained wireless sensor nodes where >90% efficiency at 15 µA load and input power-good signaling are critical design requirements.
Technical Context
The TPS62737RGYT integrates a time-sampled hysteretic controller to minimize average quiescent current while maintaining regulation across 100 µA–200 mA loads. Its dual-enable architecture (EN1/EN2) supports three distinct functional states: active regulation, standby (VIN_OK monitoring only), and ship mode (full shutdown).
It uses external resistors to set both output voltage (via VOUT_SET) and input power-good threshold (via VIN_OK_SET), with independent accuracy specs (±2% for VOUT, ±3% for VIN_OK). The 2-MHz max switching frequency enables compact 10-µH inductor and 22-µF output capacitor designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 200 mA max continuous - supports higher-power wireless transceivers and microcontrollers in WSN endpoints. |
| Quiescent Current | 375 nA in active mode - preserves energy in multi-year battery or harvester-powered deployments. |
| Ship Mode Current | 11 nA typical - enables long-term storage without significant battery drain. |
| Output Voltage Range | 1.3 V to VIN – 0.2 V, resistor-programmable - accommodates 1.8-V or 2.5-V MCU rails from 2-V to 5.5-V inputs. |
| VIN_OK Threshold Accuracy | ±3% - ensures reliable undervoltage warning for system-level brownout mitigation. |
| Dropout Voltage | 220 mV at 100 mA - maintains regulation down to near-input-rail conditions during low-battery operation. |
| Switching Frequency | Up to 2 MHz - allows use of small 10-µH inductors and reduces solution footprint vs lower-frequency converters. |
Pinout & Package
The TPS62737RGYT is housed in a 14-pin VQFN package (RGY) with 3.5 mm × 3.5 mm body size and exposed thermal pad (pin 15, connected to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input supply | Accepts 2 V to 5.5 V; powers internal circuitry and high-side switch. |
| OUT (Pin 11) | Regulated output | Delivers programmable DC output; requires 22-µF ceramic capacitor for stability. |
| SW (Pins 2, 13) | Switching node | Connects to inductor; carries pulsed current; layout critical for EMI and efficiency. |
| VOUT_SET (Pin 9) | Output voltage programming | Resistor divider input referenced to VRDIV; sets feedback reference for regulation. |
| VIN_OK_SET (Pin 8) | VIN power-good threshold | Resistor divider input; configures input UVLO hysteresis (40 mV fixed) and trip point. |
| VIN_OK (Pin 10) | Power-good indicator | Push-pull output; signals valid input voltage; pulled up to IN when active. |
| EN1 / EN2 (Pins 5 / 6) | Enable control inputs | EN1=1 forces ship mode; EN1=0 & EN2=0 = standby; EN1=0 & EN2=1 = active regulation. |
| VSS (Pins 3, 12) | Ground reference | Primary ground return; thermal pad (Pin 15) must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| 100% duty cycle (pass mode) | Enables LDO-like operation when VIN ≤ VOUT_SET + dropout, extending usable input range. |
| Independent VOUT and VIN_OK programming | Allows simultaneous optimization of system rail regulation and input health monitoring without shared dividers. |
| Three-state enable logic (ship/standby/active) | Reduces system-level power management complexity - no external sequencer needed for deep-sleep entry. |
| 2% output voltage regulation accuracy | Ensures stable MCU core voltage across temperature and line/load variations without trimming. |
| Input UVLO with 40-mV hysteresis | Prevents oscillatory shutdown/restart near threshold; improves reliability in weak-energy-source applications. |
Applications
| Wireless Sensor Node Power | Solar-Powered Environmental Monitor |
|---|---|
|
Use Scenario: Battery- or solar-charged IoT endpoint measuring temperature/humidity and transmitting via BLE or LoRaWAN. IC Role / Device Role / Timing Role: Primary DC/DC regulator supplying 1.8-V MCU and 3.3-V radio from variable 2.5–4.2-V supercapacitor or Li-ion cell. Use Value: 375-nA IQ extends multi-year operation on 100-mAh energy storage; >90% efficiency at 15 µA idle current preserves harvestable energy. |
Use Scenario: Outdoor weather station powered by miniature solar panel and supercapacitor buffer. IC Role / Device Role / Timing Role: Buck converter regulating 2.5-V sensor rail from 2.1–5.5-V harvested input; VIN_OK triggers data logging suspension during low-light periods. Use Value: Resistor-programmable VOUT_SET and VIN_OK_SET allow precise matching to panel IV curve and sensor voltage tolerance without firmware changes. |
| Thermal Energy Harvesting System | Low-Power Structural Health Monitor |
|
Use Scenario: Bridge-mounted TEG-powered vibration sensor transmitting strain data every 5 minutes. IC Role / Device Role / Timing Role: Ultra-low-IQ step-down regulator delivering 3.3-V rail to MEMS accelerometer and RF module from <100-mW TEG source. Use Value: 10-nA ship-mode current prevents parasitic drain during extended dark/cold periods; 200-mA capability handles burst transmit loads. |
Use Scenario: Embedded concrete sensor node monitoring crack propagation using piezoelectric elements and sub-GHz radio. IC Role / Device Role / Timing Role: Regulator powering 1.3-V analog front-end and 3.3-V transceiver from rechargeable thin-film battery charged by ambient vibration. Use Value: 1.3-V to 5.5-V input range accommodates wide battery discharge profile; ±2% VOUT accuracy ensures consistent ADC reference stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62736RGYT | 50-mA output rating, 380-nA active IQ, identical pinout and feature set except lower current capability and higher dropout voltage. | Targeted at sub-50-mA microcontroller-only nodes; unsuitable for RF-heavy or multi-sensor payloads requiring >100 mA peak. | Select TPS62736RGYT only when peak load stays below 50 mA and board space/layout reuse is prioritized over headroom. |
| MAX17222ELT+T | 200-mA output, 300-nA IQ, fixed-output variants only (no resistor programming); lacks VIN_OK output and ship-mode control. | Requires external supervisor IC for input monitoring; limited flexibility in output voltage selection across product variants. | Choose MAX17222ELT+T when fixed 1.8-V or 3.3-V output suffices and lowest possible IQ is primary requirement - but expect added BOM cost and routing for supervision. |
Compared with TPS62736RGYT, the TPS62737RGYT delivers 4× higher output current with nearly identical quiescent performance and integrated power-good signaling; versus MAX17222ELT+T, it trades 75-nA lower IQ for full programmability, dual enable control, and system-level fault signaling - making it superior for adaptive, long-life energy-harvesting designs.
Availability
TPS62737RGYT is available at Aetrix Electronics and suitable for wireless sensor networks, energy harvesting systems, and portable environmental monitors requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS62737RGYT 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 and embedded processing technologies, with decades of expertise in power management innovation.
The TPS6273x family was designed specifically for ultra-low-power energy harvesting and battery-constrained applications - emphasizing nanoscale quiescent current, programmable regulation, and intelligent power-state control without external components.
FAQ
What is the maximum continuous output current supported by the TPS62737RGYT?
The TPS62737RGYT supports up to 200 mA of continuous output current under recommended operating conditions (TA ≤ 85°C, VIN ≥ 2.3 V, proper thermal layout). Peak current capability reaches 370 mA per absolute maximum ratings, but sustained operation above 200 mA requires careful thermal design and derating based on ambient temperature and PCB copper area.
How does the TPS62737RGYT achieve ultra-low quiescent current in ship mode?
The TPS62737RGYT achieves 10–45 nA ship-mode current by fully disabling internal bias circuits, disconnecting the reference voltage generator, and placing all power switches in high-impedance state - activated exclusively by asserting EN1 = high. This state draws negligible current from the input source, enabling multi-year storage without measurable battery depletion.
Can the TPS62737RGYT regulate output voltage below 1.3 V?
No - the TPS62737RGYT's resistor-programmable output voltage range is strictly specified as 1.3 V to VIN – 0.2 V. Attempting to set VOUT below 1.3 V via external resistors results in loss of regulation accuracy and potential instability, as the internal reference and error amplifier are not characterized or guaranteed below that threshold.
What is the purpose of the VRDIV pin on the TPS62737RGYT?
The VRDIV pin on the TPS62737RGYT provides a stable 1.21-V bias voltage used as the reference for the external resistor dividers connected to VOUT_SET and VIN_OK_SET. It ensures accurate and temperature-stable programming of both output voltage and input power-good thresholds without requiring precision external references.
Does the TPS62737RGYT require an external compensation network?
No - the TPS62737RGYT uses a hysteretic control architecture with internal compensation, eliminating the need for external Type-II or Type-III compensation networks. Stability is ensured with the recommended 22-µF X5R/X7R ceramic output capacitor and 10-µH shielded inductor; no additional capacitors or resistors are required for loop compensation.
TPS62737RGYT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-VFQFN 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):
- 2V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.3V
- Voltage - Output (Max):
- 5V
- Current - Output:
- 200mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-VQFN (3.5x3.5)
TPS62737RGYT FAQ
1.How can I place an order for TPS62737RGYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62737RGYT 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 TPS62737RGYT reliable?
The price and inventory of TPS62737RGYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62737RGYT is usually 5 days.
3.What payment methods are accepted for TPS62737RGYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62737RGYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62737RGYT?
TPS62737RGYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62737RGYT 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 TPS62737RGYT?
For technical support, including TPS62737RGYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62737RGYT requirements.
6.How does Aetrix verify that TPS62737RGYT is sourced from the original manufacturer or authorized distributors?
All TPS62737RGYT 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 TPS62737RGYT meets industry standards.
7.What is the process for return or replacement of TPS62737RGYT?
All TPS62737RGYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62737RGYT, 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 TPS62737RGYT part is unused and in its original packaging.
Return procedure for TPS62737RGYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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