Three-rail supervisor with adjustable threshold
It asserts both an active-high and an active-low reset output when any monitored voltage falls below its threshold, and holds reset for a minimum of 140ms after all rails return to tolerance.
TPS3307-18DGN Multi-Voltage Supervisor, 1.68V/2.93V/Adj
MPNTPS3307-18DGN
Active
Texas Instruments TPS3307-18DGN Multi-Voltage Supervisor, 3 voltages monitored, thresholds 1.68V, 2.93V, Adj, active high/active low reset, push-pull output, 140ms min reset timeout, -40°C to 85°C, 8-HVSSOP surface mount.
$4.0100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Multi-Voltage Supervisor |
| Mounting | Surface Mount |
| Voltage - threshold | 1.68V, 2.93V, Adj |
| Number of voltages monitored | 3 |
| Operating temperature | -40°C~85°C(TA) |
| Reset | Active High/Active Low |
| Output | Push-Pull, Totem Pole |
| Package | Tube |
| Reset timeout | 140ms Minimum |
| Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) Exposed Pad |
Product details
Frequently asked questions
What is the TPS3307-18DGN used for?
It monitors three independent voltage rails — typically a 1.8V core, a 3.3V I/O, and a fifth adjustable rail like 2.5V or 1.2V — and holds the system in reset until all three are stable. Common in multi-rail FPGAs, SoCs, and industrial controllers that need a known start-up sequence.
Can TPS3307-18DGN monitor 5V and 3.3V rails?
Yes, but not directly with the fixed thresholds. The 1.68V threshold can monitor a 1.8V rail, and the 2.93V threshold monitors a 3.3V rail. For a 5V rail, use the adjustable input with a resistor divider to scale 5V down to the internal reference. The supervisor itself does not have a 5V-rated sense input.