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Texas Instruments TPS62100DR
- Part No.:
- TPS62100DR
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS62100DR.pdf
- Description:
- IC REG BUCK ADJ 500MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,165
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Product details
Overview
TPS62100DR from Texas Instruments is a synchronous buck DC-DC converter optimized for single/dual Li-ion battery-powered portable electronics. It operates from 2.5 V to 9 V input, delivers adjustable 0.8 V to 8 V output at up to 500 mA, and features dual-auto-mode switching between constant-frequency PWM (300 kHz) and pulsed-variable-frequency (PFM) for high light-load efficiency. Used in GPS devices and digital still cameras for regulated core voltage generation.
For engineers reviewing the TPS62100DR datasheet, TPS62100DR pinout, TPS62100DR application, or TPS62100DR equivalent, key selection criteria include its 300 kHz fixed-frequency option, 8-pin SOIC package, tri-mode MODE control, SD/SYNC dual-function pin, and integrated N/P-FET switch with 0.3 Ω/0.5 Ω RDS(on) at 7.2 V.
Technical Context
The TPS62100DR implements voltage-mode PWM control with an internal 0.8-V reference and error amplifier (80 dB gain, 5 MHz unity-gain bandwidth). Its MODE pin selects among forced constant-frequency, forced PFM, or automatic mode-where load-current detection triggers seamless transitions between 300 kHz PWM and burst-mode operation below ~100 mA.
The SD/SYNC pin provides both external clock synchronization (up to 600 kHz) and shutdown control (>20 µs high pulse), while the COMP pin supports loop compensation via origin-pole + dual-zero networks optimized for ceramic output capacitors. Integrated overcurrent protection includes two-stage current limiting (1 A fast-trip, 1.2 A soft-start reset) and thermal shutdown at 170°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 9 V - supports 1-cell (2.5–4.2 V) and 2-cell (5–8.4 V) Li-ion battery inputs without external regulators. |
| Output Voltage Range | 0.8 V to 8 V - adjustable via FB resistor divider; 800 mV feedback reference enables precise low-voltage rail generation. |
| Max Output Current | 500 mA - sustained delivery under continuous conduction mode (CCM) in constant-frequency operation. |
| Switching Frequency | 300 kHz - fixed nominal frequency; synchronizable up to 600 kHz for EMI reduction or multi-rail coordination. |
| NFET RDS(on) | 0.3 Ω (typ) at VIN = 7.2 V - minimizes conduction loss in high-current phase; enables >90% peak efficiency at mid-load. |
| Quiescent Current | 250 µA (typ) in burst mode - extends battery runtime during standby or intermittent operation in handheld devices. |
| Duty Cycle Range | 0% to 100% - supports ultra-low dropout operation (e.g., 3.3 V out from 3.6 V in) and wide VIN/VOUT ratios. |
Pinout & Package
TPS62100DR is housed in an 8-pin SOIC (D) package with exposed pad (not thermally enhanced per datasheet), suitable for standard reflow assembly and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2.5–9 V supply; internal UVLO disables operation below ~2.3 V. |
| SD/SYNC (Pin 2) | Dual-function I/O | Rising-edge sync input (0–2 V); >20 µs high pulse forces shutdown with <15 µA quiescent draw. |
| MODE (Pin 3) | Operating mode select | High = forced PWM; low = forced PFM; floating = auto-switching between modes based on load. |
| AGND (Pin 4) | Analog ground reference | Reference for internal bandgap, comparators, and error amplifier; must be star-connected to PGND near IC. |
| COMP (Pin 5) | Error amplifier output | Connects to FB via RC network; enters high-Z state in PFM mode to prevent bias interference. |
| FB (Pin 6) | Feedback input | Monitors divided output; regulated to 800 mV in PWM mode, 785–815 mV in PFM mode. |
| PGND (Pin 7) | Power ground return | High-current return path for SW node; requires low-inductance connection to input/output capacitors. |
| SW (Pin 8) | Switch node | Drives external inductor; integrates N/P-FETs; max 1.6 A peak current rating. |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode operation control | Single MODE pin configures forced-PWM, forced-PFM, or automatic load-adaptive switching-eliminates need for external mode logic. |
| Synchronous rectification | Integrated P-FET replaces Schottky diode, reducing conduction loss and enabling >92% efficiency at 3.3 V/300 mA. |
| Light-load efficiency optimization | Dual-auto-mode reduces quiescent current to 250 µA and maintains >85% efficiency down to 1 mA load. |
| Robust protection suite | Two-level overcurrent (1 A fast trip + 1.2 A soft-start reset), thermal shutdown (170°C), and input UVLO ensure safe operation under fault conditions. |
| Flexible compensation support | COMP pin architecture enables stable loop design with ceramic output caps using origin-pole + dual-zero networks. |
Applications
| GPS Devices | Digital Still Cameras |
|---|---|
Use Scenario: Powering baseband processor and RF front-end in battery-operated handheld GPS receivers. IC Role / Device Role / Timing Role: Primary step-down regulator generating stable 3.3 V or 1.8 V core voltage from varying Li-ion pack voltage (3.0–4.2 V). Use Value: Auto-mode switching maintains >88% efficiency across 1 mA (standby) to 500 mA (acquisition) loads, extending field-use battery life. |
Use Scenario: Supplying image sensor and DSP in compact digital cameras with rapid on/off cycling. IC Role / Device Role / Timing Role: High-efficiency buck converter delivering 2.8 V or 3.3 V from dual-cell Li-ion (6–8.4 V) with fast transient response. Use Value: 5 ms soft-start prevents inrush current damage to capacitors; 300 kHz switching enables small 15 µH inductors and 10 µF MLC output caps. |
| Cellular Telephones | PDAs and Handheld Cameras |
Use Scenario: Regulating application processor I/O and memory rails in legacy GSM/CDMA handsets. IC Role / Device Role / Timing Role: Secondary power stage converting main battery voltage to fixed 2.8 V or adjustable 1.2–1.5 V for SoC domains. Use Value: SD/SYNC pin allows synchronization to baseband clock to suppress switching noise in sensitive RF bands. |
Use Scenario: Providing clean, low-noise 3.3 V supply for touchscreen controller and flash memory in palm-sized PDAs. IC Role / Device Role / Timing Role: Compact, low-quiescent buck converter operating from single Li-ion cell (2.5–4.2 V) with minimal external components. Use Value: 8-pin SOIC footprint and integrated FETs reduce BOM count and PCB area versus discrete controller+MOSFET solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62200DBVR | Lower IQ (22 µA), 2-MHz switching, SOT-23-5 package; no MODE pin or PFM mode - fixed-frequency only. | Better suited for ultra-low-power always-on rails (e.g., RTC, sensors); lacks auto-mode efficiency optimization for variable loads. | Select TPS62200DBVR when minimum quiescent current and small size outweigh need for adaptive light-load efficiency. |
| TPS62060DSGR | 600-kHz version in 8-pin WSON; higher efficiency at 500 mA (94% vs 92%), but no SD/SYNC sync capability. | Ideal for space-constrained designs needing higher peak efficiency; unsuitable where EMI-sensitive systems require clock synchronization. | Choose TPS62060DSGR when board area is critical and synchronization is unnecessary; retain TPS62100DR for sync-capable, auto-mode flexibility. |
Compared with TPS62200DBVR and TPS62060DSGR, the TPS62100DR uniquely combines 300 kHz auto-mode switching, SD/SYNC synchronization, and tri-mode control in an industry-standard SOIC package-making it optimal for cost-sensitive, battery-powered portable systems requiring broad load-efficiency coverage and EMI control.
Availability
TPS62100DR is available at Aetrix Electronics and suitable for GPS devices, digital still cameras, cellular telephones, PDAs, and handheld cameras requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for TPS62100DR 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 over 50 years of innovation in energy-efficient power conversion.
The TPS6210x family was designed specifically for portable Li-ion battery systems requiring high efficiency across wide load ranges, featuring integrated FETs, multimode control, and robust protection for handheld and mobile applications.
FAQ
What is the nominal switching frequency of the TPS62100DR?
The TPS62100DR is the 300 kHz version of the TPS6210x family. Its nominal switching frequency is 300 kHz in constant-frequency mode, with typical variation of ±25% (225–375 kHz) over input voltage and temperature. This frequency is factory-set and cannot be adjusted via external components.
How does the MODE pin affect operation of the TPS62100DR?
The MODE pin on the TPS62100DR determines operating mode: driven high enables forced constant-frequency PWM; driven low activates forced PFM (burst mode); left floating enables automatic switching between modes based on load current. In auto-mode, the TPS62100DR transitions to PFM below ~100 mA to maintain high light-load efficiency.
Can the TPS62100DR be synchronized to an external clock?
Yes, the TPS62100DR supports external synchronization via the SD/SYNC pin. Applying a clean TTL/CMOS clock signal with rising edges within 0–2 V range synchronizes the internal oscillator. Maximum sync frequency is 600 kHz - twice its nominal 300 kHz frequency - beyond which sawtooth amplitude reduction degrades PWM linearity.
What protection features does the TPS62100DR include?
The TPS62100DR integrates three protection mechanisms: (1) two-stage overcurrent protection (1 A fast-trip, 1.2 A soft-start reset), (2) thermal shutdown at 170°C junction temperature, and (3) input UVLO disabling operation below ~2.3 V. These ensure reliable operation during short circuits, overheating, or depleted battery conditions.
Is the TPS62100DR pin-compatible with other members of the TPS6210x family?
Yes, all TPS6210x variants-including TPS62100DR, TPS62101DR, TPS62102DR, and TPS62103DR-share identical 8-pin SOIC (D) package and pinout. They differ only in factory-programmed switching frequency (300/600/1000/2000 kHz), allowing drop-in replacement when frequency requirements change without layout modification.
TPS62100DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 9V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 8V
- Current - Output:
- 500mA
- Frequency - Switching:
- 300kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS62100DR FAQ
1.How can I place an order for TPS62100DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62100DR 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 TPS62100DR reliable?
The price and inventory of TPS62100DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62100DR is usually 5 days.
3.What payment methods are accepted for TPS62100DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62100DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62100DR?
TPS62100DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62100DR 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 TPS62100DR?
For technical support, including TPS62100DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62100DR requirements.
6.How does Aetrix verify that TPS62100DR is sourced from the original manufacturer or authorized distributors?
All TPS62100DR 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 TPS62100DR meets industry standards.
7.What is the process for return or replacement of TPS62100DR?
All TPS62100DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62100DR, 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 TPS62100DR part is unused and in its original packaging.
Return procedure for TPS62100DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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