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onsemi CAT3200TDI-T3
- Part No.:
- CAT3200TDI-T3
- Manufacturer:
- onsemi
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
CAT3200TDI-T3.pdf
- Description:
- IC REG BST CHRG PUMP ADJ TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,196
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Product details
Overview
CAT3200TDI-T3 from onsemi is a low-noise, regulated charge pump DC-DC converter delivering a fixed 5 V output at up to 100 mA from 2.7–4.5 V input. It operates at constant 2 MHz switching frequency, uses only 1 µF ceramic capacitors, and features active-low shutdown control with <1 µA quiescent current in power-down mode. It is widely used in USB On-The-Go 5 V supply generation and white LED driver circuits in handheld portable devices.
For engineers reviewing the CAT3200TDI-T3 datasheet, pinout, applications, or equivalent options, key selection considerations include its fixed 5 V output, TSOT-23-6 package, thermal shutdown (160°C), foldback current limiting, and compatibility with 3.3 V input systems requiring stable local 5 V rails.
Technical Context
The CAT3200TDI-T3 implements a non-overlapping 2-phase switched-capacitor voltage doubler architecture with internal 1.27 V reference and feedback regulation. Its charge pump operation stacks the flying capacitor in series with VIN to generate 2×VIN, then regulates the output via error amplifier control of pump current.
It integrates soft-start and slew-rate control to limit inrush current, employs CMOS-level SHDN logic (VIH = 0.8–1.3 V, VIL = 0.4 V), and provides full protection including thermal shutdown with 20°C hysteresis and foldback current limiting that caps short-circuit output at ~80 mA under 3.3 V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% (4.8–5.2 V) across load and line variations |
| Max Output Current | 100 mA continuous; supports typical USB OTG and LED loads without thermal derating at 3.3 V input |
| Switching Frequency | 2.0 MHz typical (1.3–2.6 MHz); enables use of tiny 1 µF ceramic flying/output capacitors |
| Input Voltage Range | 2.7 V to 4.5 V; compatible with single-cell Li-ion (3.0–4.2 V) and 3.3 V system rails |
| Shutdown Current | <1 µA; ensures negligible battery drain during system sleep modes |
| Output Ripple | 30 mVP-P at 100 mA load; low noise critical for analog/RF subsystems powered from same rail |
| Thermal Shutdown | Triggers at 160°C junction temperature with 20°C hysteresis; prevents permanent damage during overload |
Pinout & Package
Package: TSOT-23-6 (Case 419AF), 1 mm max height, RoHS-compliant NiPdAu lead finish, 3,000 pcs/reel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input power supply | Accepts 2.7–4.5 V; requires local 1 µF low-ESR ceramic bypass to suppress switching noise injection |
| 2 - GND | Ground reference | Signal and power ground common node; must connect to solid PCB ground plane for thermal and noise performance |
| 3 - CNEG | Flying capacitor negative terminal | Connects to low-ESR 1 µF ceramic capacitor; polarity-sensitive-no tantalum/aluminum capacitors permitted |
| 4 - CPOS | Flying capacitor positive terminal | Completes charge pump loop; switching node with 2×VIN voltage swing; layout symmetry critical |
| 5 - SHDN | Active-low shutdown control | CMOS input with no internal pull-down; must be driven to ≤0.4 V for shutdown, ≥0.8 V to enable |
| 6 - OUT | Regulated 5 V output | Delivers up to 100 mA; requires 1 µF low-ESR ceramic capacitor; reverse leakage ≤30 µA in shutdown |
Key Features
| Feature | Design Value |
|---|---|
| 2 MHz fixed-frequency operation | Enables ultra-small external capacitors (1 µF) and predictable EMI spectrum for EMC filtering |
| Integrated thermal shutdown + foldback current limiting | Prevents latch-up or damage during sustained overload or short-circuit; cycles autonomously until fault clears |
| Slew-rate controlled soft-start | Limits inrush current to <100 mA during power-up; avoids brown-out in shared input rails |
| Low 1.7 mA typical quiescent current | Extends battery life in always-on or intermittently active portable applications |
| 1 µA shutdown current | Meets stringent energy budget requirements for IoT sensor nodes and wearable standby modes |
Applications
| USB On-The-Go 5 V Supply | White LED Driver |
|---|---|
|
Use Scenario: Providing regulated 5 V power from a 3.3 V host controller to enable USB peripheral enumeration and data transfer. IC Role / Device Role / Timing Role: Local boost converter generating clean, low-noise 5 V rail independent of main system supply. Use Value: Eliminates need for separate LDO or inductor-based DC-DC; meets USB 2.0 voltage tolerance (5 V ±5%) with 30 mVP-P ripple. |
Use Scenario: Driving 1–5 white/blue LEDs (3.0–3.6 V forward) from a single-cell Li-ion battery (3.0–4.2 V). IC Role / Device Role / Timing Role: Constant-voltage boost source enabling PWM brightness control via external signal. Use Value: Delivers stable 5 V at 100 mA with thermal protection-supports up to 5× 20 mA LEDs without external current regulation. |
| Local 5 V Supply from 3.3 V Rail | Battery Backup System Power |
|
Use Scenario: Generating isolated 5 V for legacy interfaces (e.g., RS-232 transceivers, EEPROM programmers) on modern 3.3 V embedded boards. IC Role / Device Role / Timing Role: Compact, low-noise voltage booster replacing discrete charge pump solutions. Use Value: Achieves >80% efficiency at 50 mA load; 2 MHz operation avoids audible noise and simplifies filtering. |
Use Scenario: Maintaining 5 V auxiliary power during main supply failure in smart meters or industrial controllers using backup coin cells or supercaps. IC Role / Device Role / Timing Role: Ultra-low-quiescent boost converter preserving backup energy while delivering regulated output. Use Value: Draws only 1.7 mA typical during operation and <1 µA in shutdown-maximizes backup runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar regulated charge pump boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX682ESA+ | Fixed 5 V output, 125 mA max, 1.5 MHz, SO-8 package; higher IQ (25 µA shutdown) | Requires larger SO-8 footprint; less suitable for space-constrained portable designs | Preferred when higher output current or SOIC assembly infrastructure exists |
| TPS60403DBVR | Fixed 5 V, 60 mA max, 500 kHz, SOT-23-5; lower efficiency (~75% @50 mA), higher ripple (50 mVP-P) | Limited to lighter loads; not recommended for USB OTG or multi-LED drivers | Consider only for cost-sensitive, low-current applications where 2 MHz EMI is undesirable |
Compared with CAT3200TDI-T3, MAX682ESA+ offers higher current but larger size and higher shutdown current, while TPS60403DBVR trades efficiency and noise performance for lower cost and simpler 5-pin layout-neither is pin-compatible, and CAT3200TDI-T3 remains optimal for compact, high-efficiency 100 mA 5 V boost needs.
Availability
CAT3200TDI-T3 is available at Aetrix Electronics and suitable for USB On-The-Go 5 V supply, white LED driver, and local 5 V rail generation requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for CAT3200TDI-T3 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in power management, analog, sensors, and connectivity solutions.
The CAT3200 series belongs to onsemi's low-noise charge pump DC-DC converter product line, designed specifically for compact, battery-powered applications needing clean, regulated 5 V from 3.x V sources without inductors.
FAQ
What is the maximum continuous output current of the CAT3200TDI-T3?
The CAT3200TDI-T3 delivers up to 100 mA continuously across its full operating input range (2.7–4.5 V) and ambient temperature (−40°C to +85°C). At 3.3 V input, it sustains 100 mA with output voltage regulation within 4.8–5.2 V and thermal shutdown remaining inactive under typical PCB thermal conditions. Exceeding this load triggers foldback current limiting and may activate thermal shutdown depending on layout and ambient temperature.
Does the CAT3200TDI-T3 require external resistors to set the output voltage?
No, the CAT3200TDI-T3 is the fixed 5 V version (CAT3200-5 variant) and contains an internal resistor divider-no external FB resistors are needed. This distinguishes it from the adjustable CAT3200ZI-T3, which uses the FB pin and external R1/R2 to set output voltage. The CAT3200TDI-T3's OUT pin delivers factory-trimmed 5.0 V ±2%, eliminating design overhead for voltage programming.
What package type and dimensions does the CAT3200TDI-T3 use?
The CAT3200TDI-T3 uses the TSOT-23-6 package (Case 419AF), measuring 2.90 mm × 1.60 mm × 1.00 mm max height. It features a 0.95 mm pin pitch, NiPdAu lead finish, and complies with JEDEC MO-193. This ultra-thin, space-saving package is optimized for portable PCBs where board area and profile are constrained-unlike the MSOP-8 used by the adjustable CAT3200ZI-T3.
How does the shutdown function work on the CAT3200TDI-T3?
The CAT3200TDI-T3 features an active-low CMOS SHDN pin (Pin 5). Driving SHDN ≤0.4 V places the device in shutdown, reducing supply current to <1 µA and disconnecting OUT from IN. The pin has no internal pull-down, so it must be actively driven-not left floating. Upon release (SHDN ≥0.8 V), the device performs slew-rate-controlled power-up, reaching 90% of 5 V output in <0.5 ms, preventing inrush-related system instability.
Can the CAT3200TDI-T3 drive white LEDs directly without additional current-limiting components?
Yes-the CAT3200TDI-T3 can directly drive up to five standard white LEDs (VF ≈ 3.2 V) in parallel at 20 mA each, totaling 100 mA, provided the input is ≥3.1 V. Its regulated 5 V output ensures stable forward voltage margin, and built-in thermal shutdown protects against sustained overloads. For precise per-LED current control or PWM dimming, external current-setting resistors or MOSFET switches remain recommended-but basic illumination is fully supported with no added ICs.
CAT3200TDI-T3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost, Charge Pump
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 4.5V
- Voltage - Output (Min/Fixed):
- 1.27V
- Voltage - Output (Max):
- 4.5V
- Current - Output:
- 100mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
CAT3200TDI-T3 FAQ
1.How can I place an order for CAT3200TDI-T3 through Aetrix?
Please submit a Request for Quotation (RFQ) for CAT3200TDI-T3 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 CAT3200TDI-T3 reliable?
The price and inventory of CAT3200TDI-T3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CAT3200TDI-T3 is usually 5 days.
3.What payment methods are accepted for CAT3200TDI-T3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CAT3200TDI-T3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CAT3200TDI-T3?
CAT3200TDI-T3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CAT3200TDI-T3 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 CAT3200TDI-T3?
For technical support, including CAT3200TDI-T3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CAT3200TDI-T3 requirements.
6.How does Aetrix verify that CAT3200TDI-T3 is sourced from the original manufacturer or authorized distributors?
All CAT3200TDI-T3 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 CAT3200TDI-T3 meets industry standards.
7.What is the process for return or replacement of CAT3200TDI-T3?
All CAT3200TDI-T3 units undergo pre-shipment inspection (PSI). If there is an issue with CAT3200TDI-T3, 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 CAT3200TDI-T3 part is unused and in its original packaging.
Return procedure for CAT3200TDI-T3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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