TPS3606-33DGSG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TPS3606-33DGSG4 is a 3.3 V processor supervisor IC with battery backup switching, active-low reset output, and watchdog timer in a 10-pin MSOP/VSSOP package. It protects microprocessors from undervoltage events and ensures orderly power sequencing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- TPS3606-33DGSG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS3606-33DGSG4?
- 3.3 V fixed threshold voltage monitoring with active-low reset
- Integrated battery backup switch for seamless supply switchover
- Watchdog timer (WD) for microprocessor fault detection
- Single-channel supervisor in compact 10-pin MSOP/VSSOP package
- No adjustable threshold — fixed 3.3 V simplifies BOM
- RoHS-compliant Pb-free construction (JESD-609 e4)
What is TPS3606-33DGSG4 used for?
The TPS3606-33DGSG4 is used in embedded systems and industrial controllers powered from 3.3 V rails, where reliable reset generation and watchdog supervision protect microprocessors during power brownouts or firmware hangs. It also suits portable medical devices and data-logging equipment that need battery backup switching to maintain RTC or SRAM state during main supply loss.
What are the specifications of TPS3606-33DGSG4?
| YTEOL | 0 |
| Additional Feature | BAT BUP SW:Y;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:Y;WWD:N |
| Adjustable Threshold | NO |
| Analog IC - Other Type | BATTERY BACKUP SUPERVISOR |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.04mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS3606-33DGSG4 datasheet?
TPS3606-33DGSG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS3606-33DGSG4?
Compatible alternatives and drop-in replacements for TPS3606-33DGSG4:
Texas Instruments Fixed, 1 Channel, +2.93V, PDSO10
Frequently Asked Questions
At what supply voltage does the TPS3606-33DGSG4 monitor and generate a reset?
The TPS3606-33DGSG4 monitors a 3.3 V supply rail and asserts its active-low reset output when the rail drops below the fixed 3.3 V threshold. The fixed threshold eliminates the need for external resistor dividers, reducing component count and board space in embedded controller designs.
Does the TPS3606-33DGSG4 include a watchdog timer, and how does it protect a microprocessor?
Yes, the device integrates a watchdog timer (WD) that resets the microprocessor if the WDI pin is not toggled within the programmed timeout window. This prevents system lockups from firmware hangs, ensuring the processor restarts automatically without requiring a power cycle in industrial control or communication equipment.
How does the battery backup switch work in this supervisor IC?
The TPS3606-33DGSG4 contains an integrated battery backup switch that automatically routes power from a backup battery (typically 3 V coin cell) to the protected supply rail when the primary 3.3 V input falls below the threshold. This switchover sustains real-time clock circuits and SRAM retention during main power interruptions lasting several seconds or longer.
What is the package of the TPS3606-33DGSG4 and how does it compare to larger supervisor packages?
The device is housed in a 10-pin MSOP/VSSOP package (JESD-30 code S-PDSO-G10, equivalence TSSOP10, 0.19-inch pitch). This package is roughly 3 mm x 3 mm, significantly smaller than 14-pin or 16-pin SOIC alternatives, making it ideal for space-constrained boards in handheld devices or compact industrial modules.
Which embedded processor families benefit from using the TPS3606-33DGSG4 as a supervisor?
Any 3.3 V microprocessor or microcontroller from families such as ARM Cortex-M, PIC32, or MSP430 can use this supervisor to meet power-on reset and watchdog requirements. The 3.3 V threshold and active-low reset signal are directly compatible with the reset input specifications of these 3.3 V logic families, reducing external glue logic to zero components.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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