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Texas Instruments TPS63700DRCRG4
- Part No.:
- TPS63700DRCRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS63700DRCRG4.pdf
- Description:
- IC REG BUCK BST ADJ 360MA 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,223
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Product details
Overview
TPS63700DRCRG4 from Texas Instruments is an inverting DC/DC converter IC generating adjustable negative output voltages down to –15 V, supporting up to 360 mA output current with 2.7 V to 5.5 V input range, fixed 1.4 MHz PWM switching, and integrated overvoltage/thermal protection - used for biasing OLED displays and analog circuitry in portable battery-powered systems.
For engineers reviewing the TPS63700DRCRG4 datasheet, TPS63700DRCRG4 pinout, TPS63700DRCRG4 application, or TPS63700DRCRG4 equivalent, key selection considerations include its inverting buck-boost topology, –15 V minimum output capability, 1000 mA typical switch current limit, 1.5 μA shutdown current, and 3 mm × 3 mm SON-10 package with PowerPAD™ thermal enhancement.
Technical Context
The TPS63700DRCRG4 implements a fixed-frequency PWM control scheme with internal compensation, operating in continuous conduction mode (CCM) at medium-to-heavy loads and transitioning to discontinuous conduction mode (DCM) at light loads. Its multiple-feed-forward controller monitors VIN, VOUT, and switch voltage drop to dynamically adjust duty cycle.
It integrates undervoltage lockout (2.35 V threshold), thermal shutdown (150 °C), output overvoltage protection (–19 V), and soft-start to limit inrush current. The error amplifier compares FB voltage to GND, with VREF = 1.213 V referenced to the feedback divider's lower node.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output polarity | Inverting: generates negative output from positive input - enables single-supply systems to power dual-rail analog stages. |
| Input voltage range | 2.7 V to 5.5 V - directly compatible with Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd, or regulated 3.3 V/5 V rails. |
| Adjustable output range | –2 V to –15 V - set via external resistor divider on FB/VREF pins; supports precision biasing of display drivers and op-amps. |
| Switch current limit | 1000 mA typical - determines maximum deliverable output current under worst-case VIN/VOUT ratios (e.g., –12 V @ 3.3 V IN). |
| Switching frequency | 1.4 MHz typical (1.25–1.5 MHz range) - enables use of compact 4.7 μH inductors and ceramic capacitors for space-constrained designs. |
| Efficiency peak | 84% at 150 mA, VIN = 3.6 V, VOUT = –5 V - balances power loss and EMI in portable applications with limited thermal mass. |
| Shutdown current | 1.5 μA max - preserves battery life during system sleep modes without requiring external load switches. |
Pinout & Package
TPS63700DRCRG4 uses a 3 mm × 3 mm VSON-10 (DRC) package with exposed PowerPAD™ thermal pad for enhanced heat dissipation. Pin numbering follows top-view orientation with Pin 1 marked by dot or bevel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COMP | Control loop compensation | Connects 4.7 nF capacitor to GND to stabilize internal error amplifier; critical for transient response and loop stability. |
| GND | Analog ground reference | Common return for control logic; must be separated from PS_GND in high-noise layouts to avoid coupling into feedback path. |
| VIN | Logic supply input | Powers internal control circuitry; requires RC filter (10 Ω + 100 nF) to suppress noise from shared input rail. |
| EN | Enable control input | Active-high enable: tie to VIN for operation, GND for <1.5 μA shutdown; supports system-level power sequencing. |
| IN | Main power switch input | High-current path for inductor charging; connects directly to battery or bulk input capacitor - low-inductance routing essential. |
| SW | Switch node output | Drives external inductor; carries high di/dt - must minimize trace length and loop area to reduce EMI and voltage spikes. |
| PS_GND | Power ground | Return path for high-current switch and inductor; connect directly to PowerPAD™ and input/output capacitor grounds. |
| OUT | Negative output sense | Connects to output capacitor cathode; used for output voltage monitoring and load-disconnect functionality. |
| FB | Feedback input | Senses voltage divider output referenced to GND; internal comparator targets 0 V at FB for accurate negative regulation. |
| VREF | Reference voltage output | 1.213 V precision reference; lower resistor of feedback divider connects here - decoupling capacitor (220 nF) required. |
Key Features
| Feature | Design Value |
|---|---|
| Load disconnect on disable | Internal PMOS switch opens between IN and OUT during EN = GND - prevents battery drain through load when powered off. |
| Output overvoltage protection | Clamps output at –19 V if FB connection opens - protects downstream components like OLED pixel drivers from destructive reverse bias. |
| Soft-start | Ramps switch current limit gradually at startup - limits inrush into output capacitors and avoids battery voltage sag affecting co-located RF circuits. |
| Thermal shutdown with hysteresis | Shuts down at 150 °C junction temperature; restarts after 5 °C cooldown - prevents thermal runaway in sealed enclosures or high ambient conditions. |
| Fixed-frequency PWM + Power Save Mode | Operates at 1.4 MHz in CCM; automatically enters pulse-skipping DCM below ~20 mA - maintains regulation while reducing light-load quiescent current. |
Applications
| OLED Display Bias Supply | Analog Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Providing –5 V to –12 V bias for active-matrix OLED source drivers and gate drivers in handheld medical monitors. IC Role / Device Role / Timing Role: Inverting DC/DC converter generating stable negative rail from single Li-ion cell; regulates output using internal error amplifier and VREF-referenced feedback. Use Value: Enables compact, single-battery design without discrete charge pumps or transformers - achieves 84% efficiency at 150 mA while meeting tight ripple (<12 mV) requirements. |
Use Scenario: Supplying –5 V reference and bias for precision instrumentation amplifiers and ADC front-ends in portable data loggers. IC Role / Device Role / Timing Role: Negative voltage generator with low 1.5 μA shutdown current and ±3% output accuracy - maintains sensor signal integrity during deep-sleep intervals. Use Value: Eliminates need for dual-output isolated supplies; 1.4 MHz switching allows small 4.7 μH inductor and ceramic caps - reduces BOM count and board area by >30% vs. legacy solutions. |
| Portable Audio DAC Power | Industrial PLC Analog I/O Module |
|
Use Scenario: Delivering –5 V to high-performance audio DACs and op-amp buffers in Bluetooth headphones with 24-bit resolution. IC Role / Device Role / Timing Role: Low-noise inverting regulator with feed-forward capacitor (10 pF) on feedback divider - minimizes switching noise coupling into sensitive analog signal paths. Use Value: Achieves <–60 dB THD+N by isolating digital switching noise from analog ground; 3 mm × 3 mm SON-10 package fits within tight acoustic cavity constraints. |
Use Scenario: Generating –12 V for analog input channel protection circuitry (e.g., TVS clamping, op-amp level-shifting) in DIN-rail mounted industrial controllers. IC Role / Device Role / Timing Role: Robust inverter with –19 V overvoltage clamp and thermal shutdown - withstands 85 °C ambient and transient surges per IEC 61000-4-5. Use Value: Replaces discrete DC/DC modules with 50% smaller footprint and no external MOSFET drive complexity - simplifies CE/UL certification for Class I equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar inverting DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX774CPA+ | Fixed –5 V output only; 1.2 MHz switching; no adjustable VREF pin - requires different feedback network design. | Limited to single-output systems; lacks programmable overvoltage protection and soft-start. | Choose MAX774CPA+ only if fixed –5 V output suffices and layout space permits larger SO-8 package. |
| LT3467EDD | Higher 1.3 A switch current limit; 1.2 MHz; includes synchronous rectification - improves efficiency above 200 mA but increases cost. | Better suited for –15 V @ 300 mA loads; requires external Schottky diode replacement and revised compensation. | Select LT3467EDD when >85% efficiency at full load is mandatory and BOM cost premium is acceptable. |
Compared with TPS63700DRCRG4, MAX774CPA+ offers simpler implementation for fixed-output use cases but sacrifices flexibility and thermal performance, while LT3467EDD delivers higher current capability and efficiency at the expense of added design complexity and cost - TPS63700DRCRG4 remains optimal for adjustable –2 V to –15 V biasing in space- and cost-sensitive portable systems.
Availability
TPS63700DRCRG4 is available at Aetrix Electronics and suitable for portable medical devices, handheld test equipment, and industrial sensor interfaces requiring stable component supply across extended production lifecycles.
Supply support for TPS63700DRCRG4 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 and battery-powered system design.
The TPS63700DRCRG4 belongs to TI's precision inverting DC/DC converter product line, engineered specifically for generating clean, adjustable negative rails in space-constrained, battery-operated applications where reliability and low quiescent current are critical.
FAQ
What is the minimum output voltage achievable with the TPS63700DRCRG4?
The TPS63700DRCRG4 supports an adjustable output voltage range from –2 V to –15 V. This is achieved using an external resistor divider connected between VREF (1.213 V) and FB pins, with the lower resistor tied to VREF. The –15 V minimum is specified under recommended operating conditions and verified across temperature and load.
Does the TPS63700DRCRG4 require an external diode in its inverting buck-boost configuration?
Yes, the TPS63700DRCRG4 requires an external Schottky diode (e.g., Vishay SL02/SL03) connected between SW and the output capacitor. It does not integrate synchronous rectification; the diode provides the return path for inductor current during the switch-off phase and must be selected for low forward voltage and fast recovery.
How does the TPS63700DRCRG4 handle load disconnection during shutdown?
When EN is pulled low, the TPS63700DRCRG4 disables its internal PMOS switch between IN and OUT, physically breaking the DC path from input to output. This load disconnect feature prevents battery drain through the output load during standby - confirmed by ≤1.5 μA shutdown current measurement with no external leakage paths.
Can the TPS63700DRCRG4 operate from a 2.7 V input while delivering –12 V at 100 mA?
Yes, the TPS63700DRCRG4 supports this condition. At VIN = 2.7 V and VOUT = –12 V, the device delivers up to ~100 mA (per Figure 1: Maximum Output Current vs Input Voltage). Efficiency drops to ~72%, but regulation is maintained within ±3% accuracy due to internal error amplifier and fixed-frequency PWM control.
What is the role of the COMP pin on the TPS63700DRCRG4, and what capacitor value is required?
The COMP pin on the TPS63700DRCRG4 provides access to the internal error amplifier's compensation node. A 4.7 nF capacitor must be connected from COMP to GND to ensure stable loop dynamics and prevent oscillation. This value is validated in TI's reference designs and electrical characteristics testing across temperature and input conditions.
TPS63700DRCRG4 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/Step-Down
- Output Configuration:
- Negative
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- -2V
- Voltage - Output (Max):
- -15V
- Current - Output:
- 360mA
- Frequency - Switching:
- 1.38MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS63700DRCRG4 FAQ
1.How can I place an order for TPS63700DRCRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS63700DRCRG4 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 TPS63700DRCRG4 reliable?
The price and inventory of TPS63700DRCRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS63700DRCRG4 is usually 5 days.
3.What payment methods are accepted for TPS63700DRCRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS63700DRCRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS63700DRCRG4?
TPS63700DRCRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS63700DRCRG4 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 TPS63700DRCRG4?
For technical support, including TPS63700DRCRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS63700DRCRG4 requirements.
6.How does Aetrix verify that TPS63700DRCRG4 is sourced from the original manufacturer or authorized distributors?
All TPS63700DRCRG4 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 TPS63700DRCRG4 meets industry standards.
7.What is the process for return or replacement of TPS63700DRCRG4?
All TPS63700DRCRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS63700DRCRG4, 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 TPS63700DRCRG4 part is unused and in its original packaging.
Return procedure for TPS63700DRCRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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