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Texas Instruments TPS62737RGYR
- Part No.:
- TPS62737RGYR
- Manufacturer:
- Texas Instruments
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
TPS62737RGYR.pdf
- Description:
- IC REG BUCK PROG 200MA 14VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:801
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Product details
Overview
TPS62737RGYR from Texas Instruments is an ultra-low-power, resistor-programmable buck converter optimized for 200-mA output current, operating from 2-V to 5.5-V input and delivering 1.3-V to (VIN − 0.2 V) output. It features 375-nA quiescent current in active regulation mode, 10-nA ship-mode shutdown, and integrated VIN_OK power-good indicator with programmable threshold - enabling energy harvesting, wireless sensor node, and battery-powered health monitoring systems.
For engineers reviewing the TPS62737RGYR datasheet, TPS62737RGYR pinout, TPS62737RGYR application, or TPS62737RGYR equivalent, key selection criteria include its 200-mA output capability, 10-nA ship-mode IQ, resistor-programmable VOUT and VIN_OK thresholds, hysteretic control architecture for sub-µA efficiency, and QFN-14 (3.5 mm × 3.5 mm) thermal-pad package for compact low-power designs.
Technical Context
The TPS62737RGYR employs a time-sampled hysteretic controller that minimizes average quiescent current across load ranges from 100 µA to 200 mA. Its dual enable inputs (EN1/EN2) support three distinct functional states: active regulation (EN1=0, EN2=1), standby with VIN_OK monitoring (EN1=0, EN2=0), and full ship-mode shutdown (EN1=1).
It integrates push-pull VIN_OK output with resistor-programmable threshold (2–5.5 V), VRDIV bias reference for external feedback dividers, and internal high-side/low-side MOSFETs with RDS(on) of 1.8 Ω / 0.9 Ω at VIN = 2.1 V - enabling efficient operation down to 2-V input while maintaining 2% output voltage accuracy over temperature and line/load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 200 mA max continuous - supports higher-power ultra-low-power subsystems like BLE radios or multi-sensor nodes without external boost stages. |
| Quiescent Current | 375 nA in active regulation - preserves battery life in intermittently active IoT endpoints where sleep dominates duty cycle. |
| Ship-Mode IQ | 11 nA typical - enables >10-year shelf life in sealed remote sensors powered by primary lithium or thin-film batteries. |
| Output Voltage Range | 1.3 V to (VIN − 0.2 V), resistor-programmable - allows precise rail matching for 1.8-V or 2.5-V MCUs, RF transceivers, or analog front-ends. |
| VIN_OK Threshold | Programmable 2–5.5 V with ±3% accuracy - provides configurable brown-out detection to trigger graceful system shutdown before critical undervoltage. |
| Switching Frequency | Up to 2 MHz - permits use of small 10-µH inductors and 22-µF ceramic output capacitors for space-constrained wearables. |
| Efficiency @ 15 µA | >90% at IOUT = 15 µA - delivers superior light-load efficiency vs linear regulators in energy-harvesting applications with micro-watt sources. |
Pinout & Package
VQFN-14 (RGY) package: 3.5 mm × 3.5 mm body, 0.5-mm pitch, exposed thermal pad (Pin 15) requiring connection to VSS for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input supply rail | Accepts 2–5.5 V; requires 22-µF input capacitor for stability and peak current delivery. |
| OUT (Pin 11) | Regulated output | Delivers programmable DC output; connects to 22-µF ceramic capacitor and load. |
| SW (Pins 2, 13) | Switching node | Drives external 10-µH inductor; dual-pin layout reduces trace inductance and EMI. |
| VSS (Pins 3, 12) | Ground reference | Primary return path; must be low-impedance and tied to thermal pad for thermal performance. |
| EN1 (Pin 5), EN2 (Pin 6) | Dual enable control | EN1=1 forces ship mode; EN1=0/EN2=1 enables regulation; EN1=0/EN2=0 enters VIN_OK-only standby. |
| VIN_OK (Pin 10) | Power-good output | Push-pull digital signal indicating VIN ≥ programmed threshold; pulls up to IN when asserted. |
| VOUT_SET (Pin 9) | Output voltage divider input | Connects to resistor divider from OUT to VSS to set regulated output voltage. |
| VIN_OK_SET (Pin 8) | VIN_OK threshold divider input | Connects to resistor divider from IN to VSS to program input power-good trip point. |
| VRDIV (Pin 7) | Reference bias output | Provides stable 1.21-V bias for external feedback resistors; improves VOUT accuracy vs supply variation. |
Key Features
| Feature | Design Value |
|---|---|
| 100% Duty Cycle Pass Mode | Enables dropout-free operation when VIN ≤ VOUT_SET + VDO, extending usable battery range in declining-voltage applications. |
| Resistor-Programmable VOUT & VIN_OK | Eliminates need for multiple fixed-output variants; single BOM item supports diverse system rails and brown-out thresholds. |
| Hysteretic Time-Sampled Control | Reduces average IQ below 400 nA while maintaining fast transient response and no external compensation required. |
| Integrated VIN_OK with Programmable Hysteresis | 40-mV fixed hysteresis prevents chatter during input voltage sag; enables deterministic low-power wake-up or shutdown sequencing. |
| Thermal-Pad QFN-14 Package | 3.5 mm × 3.5 mm footprint with 2.9°C/W junction-to-board thermal resistance - supports high-density PCB layouts without heatsinks. |
Applications
| Wireless Sensor Networks (WSN) | Energy Harvesting Systems |
|---|---|
|
Use Scenario: Battery- or capacitor-powered node transmitting temperature/humidity data every 5 minutes via Sub-GHz or BLE radio. IC Role / Device Role: Primary system regulator supplying 1.8-V MCU and 3.3-V radio from a 2.5-V supercapacitor bank. Use Value: 375-nA active IQ and >90% efficiency at 15-µA load extend operational lifetime beyond 5 years on a single charge. |
Use Scenario: Solar-powered environmental monitor harvesting microwatts under indoor lighting using amorphous silicon cell. IC Role / Device Role: Ultra-low-IQ step-down regulator charging storage capacitor and powering intermittent 1.3-V sensor ADC. Use Value: 10-nA ship mode and 2% VOUT accuracy ensure reliable startup and measurement integrity even at sub-100-µW input power. |
| Portable Health Monitors | Smart Building Sensors |
|
Use Scenario: Wearable ECG patch logging biopotential data continuously for 72 hours on a coin-cell battery. IC Role / Device Role: Dual-rail generator producing 1.8-V digital core and 3.0-V analog front-end from 3-V CR2032. Use Value: Resistor-programmable outputs eliminate trimming; 200-mA capability supports brief high-current LED pulse oximetry bursts. |
Use Scenario: Battery-operated CO₂/motion sensor embedded in HVAC ductwork with 10-year maintenance interval. IC Role / Device Role: System power manager regulating 2.5-V MCU and 5-V IR emitter from 3.6-V lithium-thionyl chloride cell. Use Value: VIN_OK monitoring triggers deep sleep when battery drops below 2.8 V, preserving remaining capacity for emergency alerts. |
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 |
|---|---|---|---|
| TPS62736RGYR | 50-mA output rating, 380-nA active IQ, identical pinout and feature set except lower current capability. | Suitable for sub-50-mA loads like simple microcontrollers or passive sensors; not rated for 200-mA RF transceivers. | Select TPS62736RGYR only when peak load current remains ≤50 mA and board layout must remain unchanged. |
| MAX17050G+T | 150-mA output, 250-nA IQ, I²C-programmable VOUT (not resistor-based), 2.7–5.5-V input, different 12-pin WLP package. | Requires digital interface and firmware support; lacks VIN_OK output and ship-mode; better for firmware-controlled adaptive rails. | Choose MAX17050G+T when programmability via host MCU is preferred over analog resistor configuration and layout change is acceptable. |
Compared with TPS62737RGYR, TPS62736RGYR offers identical ultra-low-power architecture but halves output current capacity, while MAX17050G+T trades analog simplicity for digital flexibility and reduced IQ at the cost of added system complexity and non-pin-compatible packaging.
Availability
TPS62737RGYR is available at Aetrix Electronics and suitable for wireless sensor networks, energy harvesting systems, and portable health monitors requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TPS62737RGYR 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-efficiency DC/DC conversion.
The TPS6273x product line was designed specifically for ultra-low-power systems powered by batteries, supercapacitors, or ambient energy harvesters - prioritizing nanowatt quiescent operation, programmable thresholds, and minimal external component count.
FAQ
What is the maximum continuous output current supported by the TPS62737RGYR?
The TPS62737RGYR supports up to 200 mA of continuous output current under recommended operating conditions (TA ≤ 85°C, VIN ≥ 2.3 V, proper thermal layout). This is confirmed in the device voltage options table and electrical characteristics section of the SLVSBO4C datasheet, where TPS62737 is explicitly rated for 200-mA output versus 50 mA for TPS62736. Peak current capability reaches 370 mA before cycle-by-cycle limiting engages.
How does the TPS62737RGYR achieve ultra-low quiescent current in ship mode?
The TPS62737RGYR achieves 10–11 nA typical ship-mode quiescent current by disabling all internal circuitry except essential bias generation and EN1 input sensing - verified in Section 8.5 Electrical Characteristics. When EN1 = 1, the device enters full shutdown regardless of EN2 state, cutting off switching, feedback, and VIN_OK functions while retaining only leakage-level current draw from the input rail.
Can the TPS62737RGYR regulate output voltage below 1.3 V?
No, the TPS62737RGYR cannot regulate output voltage below 1.3 V. The datasheet specifies a minimum programmable output voltage of 1.3 V in Section 6 (Device Voltage Options) and Section 8.5 (Electrical Characteristics), where VOUT regulation is characterized only for 1.3 V ≤ VOUT ≤ (VIN − 0.2 V). Attempting lower settings results in loss of regulation and uncontrolled dropout behavior.
What is the purpose of the VRDIV pin on the TPS62737RGYR?
The VRDIV pin on the TPS62737RGYR provides a stable 1.21-V reference bias (±0.5% over temperature) used to bias the external resistor dividers for both VOUT_SET and VIN_OK_SET inputs. As documented in Section 7 (Pin Functions) and Figure 62 (Typical Application Circuit), this dedicated reference eliminates dependency on VIN fluctuations, improving output voltage and power-good threshold accuracy beyond what standard resistor dividers achieve.
Does the TPS62737RGYR support 100% duty cycle operation, and when is it active?
Yes, the TPS62737RGYR supports 100% duty cycle (pass mode) operation when input voltage falls near or below the programmed output voltage. Per Section 8.5, its dropout voltage is 180–220 mV at 100 mA, meaning pass mode activates when VIN ≤ VOUT_SET + VDO - allowing uninterrupted regulation down to VIN = 1.48 V for a 1.3-V output, which extends usable battery life in declining-voltage applications.
TPS62737RGYR 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)
TPS62737RGYR FAQ
1.How can I place an order for TPS62737RGYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62737RGYR 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 TPS62737RGYR reliable?
The price and inventory of TPS62737RGYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62737RGYR is usually 5 days.
3.What payment methods are accepted for TPS62737RGYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62737RGYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62737RGYR?
TPS62737RGYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62737RGYR 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 TPS62737RGYR?
For technical support, including TPS62737RGYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62737RGYR requirements.
6.How does Aetrix verify that TPS62737RGYR is sourced from the original manufacturer or authorized distributors?
All TPS62737RGYR 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 TPS62737RGYR meets industry standards.
7.What is the process for return or replacement of TPS62737RGYR?
All TPS62737RGYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62737RGYR, 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 TPS62737RGYR part is unused and in its original packaging.
Return procedure for TPS62737RGYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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