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Texas Instruments TPS61200DRCRG4
- Part No.:
- TPS61200DRCRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61200DRCRG4.pdf
- Description:
- IC REG BOOST ADJ 1.2A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,295
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Product details
Overview
TPS61200DRCRG4 from Texas Instruments is a low-input-voltage synchronous boost converter IC with adjustable output (1.8 V to 5.5 V), 0.3 V startup capability, 1.3-A internal switches, and automatic transition between boost and down-conversion modes. It delivers up to 600 mA at 5 V from a single-cell Li-ion battery and supports portable medical devices, fuel-cell-powered sensors, and white LED drivers.
For engineers reviewing the TPS61200DRCRG4 datasheet, TPS61200DRCRG4 pinout, TPS61200DRCRG4 application, or TPS61200DRCRG4 equivalent, key selection criteria include its 0.3 V to 5.5 V input range, 1.3-A switch current rating, Power Save mode control via PS pin, thermal shutdown protection, and VSON-10 package compatibility with space-constrained battery-powered designs.
Technical Context
The TPS61200DRCRG4 implements an average-current-mode PWM controller with input/output voltage feedforward for fast transient response. Its three-NMOS synchronous topology enables high efficiency across wide VIN–VOUT differentials and supports automatic down-conversion when VIN ≥ VOUT.
It integrates undervoltage lockout (UVLO) with programmable threshold via external resistor divider on UVLO pin, soft-start with VAUX precharge, short-circuit protection with dynamic current limiting, and thermal shutdown with 140°C trip point and 20°C hysteresis - all operating within –40°C to 85°C ambient temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.3 V to 5.5 V - enables operation directly from partially discharged alkaline/NiMH or single-cell Li-ion batteries down to 0.5 V at startup. |
| Output Voltage Range | 1.8 V to 5.5 V (adjustable) - set via external resistor divider on FB pin; supports flexible rail generation for mixed-signal SoCs and analog peripherals. |
| Switch Current Limit | 1200–1500 mA average - limits inductor current to protect internal MOSFETs and maintain stable regulation under heavy load or short-circuit conditions. |
| Quiescent Current | 50–70 μA (PS = Low) - minimizes battery drain in always-on portable applications such as medical monitors or IoT sensors. |
| Switching Frequency | 1250–1650 kHz - enables use of small external inductors (e.g., 2.2 μH) and ceramic capacitors, reducing solution footprint and EMI filtering complexity. |
| Feedback Reference | 495–505 mV - precise internal reference allows ±1% output voltage accuracy with standard 1% resistors in feedback network. |
| Thermal Shutdown | 140°C trip, 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design; auto-recovery ensures robust field operation. |
Pinout & Package
TPS61200DRCRG4 is housed in a thermally enhanced 3 mm × 3 mm VSON-10 package (DRC) with exposed thermal pad soldered to PGND for optimal power dissipation and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VAUX (Pin 1) | Auxiliary supply rail | Provides regulated ~2.5 V for internal control circuitry; must be decoupled with 0.1 μF capacitor; powers startup sequence before VOUT ramp-up. |
| VOUT (Pin 2) | Regulated output | Main power rail output; connects to load and feedback divider; features load disconnect during shutdown to prevent backfeed. |
| L (Pin 3) | Inductor connection | High-side switching node for external boost inductor; carries pulsed current up to 1.5 A; requires low-ESR layout routing. |
| PGND (Pin 4) | Power ground | Return path for high-current switches and inductor; must be isolated from signal GND except at single-point star connection near GND pin. |
| VIN (Pin 5) | Main input supply | Connects to battery or primary source; supports ultra-low 0.3 V minimum for energy harvesting applications. |
| EN (Pin 6) | Enable control | Active-high logic input; disables entire converter and disconnects load from input when low; must not float. |
| UVLO (Pin 7) | Undervoltage monitor | Programmable UVLO threshold via resistor divider; prevents operation below safe battery voltage; remains active during shutdown. |
| PS (Pin 8) | Power Save mode control | Active-low input; enables variable-frequency pulse-skipping mode for >90% efficiency at light loads; disabled in down-conversion mode. |
| GND (Pin 9) | Control ground | Reference for EN, PS, UVLO, FB inputs and internal error amplifier; separate from PGND to avoid noise coupling into feedback loop. |
| FB (Pin 10) | Feedback input | Connects to resistor divider for adjustable output; internally tied to VOUT for fixed-output variants; senses output voltage with 500 mV reference. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Boost/Down Conversion | Seamlessly transitions to down-regulation when VIN ≥ VOUT - eliminates need for external buck-boost IC in multi-battery or wide-VIN systems. |
| Synchronous 3-Switch Topology | Uses three internal N-MOSFETs to eliminate external diode losses - achieves >90% efficiency at 300 mA/3.3 V (VIN ≥2.4 V) without heat sink. |
| 0.5 V Startup Capability | Starts regulation from deeply discharged cells or energy harvesters - critical for solar-powered remote sensors and fuel-cell backup systems. |
| Load Disconnect During Shutdown | Completely isolates VOUT from VIN when EN = Low - prevents battery leakage through load and enables true zero-quiescent-power standby. |
| Integrated Short-Circuit Protection | Dynamically reduces current limit during output fault - sustains safe operation without external current-sense resistors or protection ICs. |
| Exposed Thermal Pad | Direct thermal path to PCB copper - achieves 41.2°C/W junction-to-ambient resistance in standard 2-layer board layout. |
Applications
| Portable Medical Sensors | Single-Cell Li-ion Power Management |
|---|---|
Use Scenario: Wearable glucose monitor powered by CR2032 coin cell with intermittent Bluetooth transmission. IC Role / Device Role / Timing Role: Primary DC-DC regulator generating stable 3.3 V rail for MCU, sensor ADC, and BLE radio from 2.0–3.0 V input. Use Value: 0.3 V input capability extends usable battery life by 25%; Power Save mode maintains >85% efficiency at 100 μA sleep current. | Use Scenario: Handheld ultrasound probe using single 3.7 V Li-ion cell powering FPGA, analog front-end, and display backlight. IC Role / Device Role / Timing Role: Adjustable boost converter delivering 5.0 V for display driver and 3.3 V for digital logic, with automatic down-conversion as battery discharges. Use Value: Eliminates need for dual-buck/boost IC; 1.3-A switches support 500 mA peak backlight current without derating. |
| Fuel Cell Energy Harvesting | White LED Backlight Driver |
Use Scenario: Industrial gas detector powered by micro-fuel cell producing 0.4–1.2 V open-circuit voltage. IC Role / Device Role / Timing Role: Ultra-low-VIN boost converter stepping up fuel cell output to 3.3 V for microcontroller and wireless transceiver. Use Value: 0.5 V startup ensures operation even at low fuel flow; <55 μA quiescent current maximizes energy capture efficiency. | Use Scenario: Portable media player requiring constant-current white LED backlight with dimming control. IC Role / Device Role / Timing Role: Constant-voltage source feeding external LED driver IC; provides stable 5.0 V rail independent of battery state-of-charge. Use Value: Down-conversion mode maintains 5 V output as Li-ion drops from 4.2 V to 3.0 V - avoids visible brightness flicker during discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61201DRCRG4 | Fixed 3.3 V output; identical pinout, package, and electrical specs except FB pin internally connected to VOUT. | No external feedback divider required; less design flexibility but faster time-to-market for 3.3 V-only systems. | Select when fixed 3.3 V output suffices and board space for resistor divider is constrained. |
| TPS61099YFFR | Lower IQ (300 nA), smaller 6-pin WSON, 0.7-V startup; 1-A switch; no down-conversion mode. | Better for ultra-low-power always-on sensors; lacks VIN ≥ VOUT regulation - requires separate LDO for battery-following rails. | Choose for sub-μA standby applications where down-conversion is unnecessary and size is critical. |
Compared with TPS61201DRCRG4, the TPS61200DRCRG4 offers design flexibility via adjustable output but requires two external resistors; compared with TPS61099YFFR, it trades ultra-low quiescent current for higher output current, down-conversion capability, and wider input range - making it superior for multi-rail, battery-discharge-tolerant systems.
Availability
TPS61200DRCRG4 is available at Aetrix Electronics and suitable for portable medical devices, fuel-cell-powered sensors, and white LED drivers requiring stable component supply across long-lifecycle industrial and consumer programs.
Supply support for TPS61200DRCRG4 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for battery-powered and energy-harvesting applications.
The TPS6120x product line was designed specifically for ultra-low-input-voltage boost conversion in single-cell battery systems, emphasizing startup reliability, efficiency across load range, and integration of protection features in compact packages.
FAQ
What is the minimum input voltage required for TPS61200DRCRG4 to start regulation?
The TPS61200DRCRG4 starts regulation from as low as 0.5 V input voltage, enabling operation with deeply discharged alkaline, NiMH, or Li-ion cells. This capability is verified per TI SLVS577E datasheet Section 8.5, where "Minimum input voltage at startup" is specified as 0.5 V under typical conditions. The device uses VAUX precharge and controlled soft-start to achieve reliable startup without external assist circuitry.
Does TPS61200DRCRG4 support output voltages lower than the input voltage?
Yes, the TPS61200DRCRG4 automatically enters down-conversion mode when VIN reaches or exceeds VOUT, regulating output by adjusting switch conduction to create a controlled voltage drop across internal MOSFETs. This behavior is documented in Section 10.3.1.2 of the datasheet and enables stable 3.3 V or 5.0 V rails even as a single Li-ion cell discharges from 4.2 V to 3.0 V - eliminating need for separate buck regulators.
How is the output voltage programmed on TPS61200DRCRG4?
The TPS61200DRCRG4 uses an external resistor divider connected between VOUT, FB, and GND to program output voltage according to VOUT = 0.5 V × (1 + R1/R2). The FB pin senses this divided voltage against an internal 500 mV reference. Section 7 (Pin Functions) confirms FB is an input for adjustable versions, and Section 8.5 specifies VFB = 495–505 mV. No programming pins or I²C interface are involved - adjustment is purely analog and resistor-based.
What protection features are integrated into TPS61200DRCRG4?
The TPS61200DRCRG4 integrates overcurrent protection (average inductor current limit of 1200–1500 mA), output short-circuit protection with dynamic current limiting, thermal shutdown at 140°C with 20°C hysteresis, undervoltage lockout (UVLO) with programmable threshold, and input overvoltage protection (OVP) at 5.5–7 V. All protections operate autonomously without external components, as detailed in Sections 10.3.1.4–10.3.1.7 and Table 8.5 of the datasheet.
Can TPS61200DRCRG4 be used without the PS pin connection?
No - the PS pin must be actively driven high or low; leaving it floating is prohibited per datasheet Section 7 ("Do not leave floating"). When unconnected, undefined logic levels may cause erratic Power Save mode behavior or reduced efficiency. For fixed-frequency operation, tie PS to VIN; for Power Save mode, tie PS to GND. The pin supports standard logic thresholds (VIH = 1.2 V, VIL = 0.4 V) and draws <0.1 μA leakage current.
TPS61200DRCRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1.2A (Switch)
- Frequency - Switching:
- 1.25MHz ~ 1.65MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61200DRCRG4 FAQ
1.How can I place an order for TPS61200DRCRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61200DRCRG4 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 TPS61200DRCRG4 reliable?
The price and inventory of TPS61200DRCRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61200DRCRG4 is usually 5 days.
3.What payment methods are accepted for TPS61200DRCRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61200DRCRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61200DRCRG4?
TPS61200DRCRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61200DRCRG4 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 TPS61200DRCRG4?
For technical support, including TPS61200DRCRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61200DRCRG4 requirements.
6.How does Aetrix verify that TPS61200DRCRG4 is sourced from the original manufacturer or authorized distributors?
All TPS61200DRCRG4 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 TPS61200DRCRG4 meets industry standards.
7.What is the process for return or replacement of TPS61200DRCRG4?
All TPS61200DRCRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61200DRCRG4, 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 TPS61200DRCRG4 part is unused and in its original packaging.
Return procedure for TPS61200DRCRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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