3.3 V rail supervisor with 170 ms reset hold
The open-drain output allows the reset signal to be wire-ORed with other supervisors or pulled up to a different logic voltage, common in multi-rail systems.
TPS3851G33SDRBT Simple Reset/Power-On Reset, 3.3V threshold
MPNTPS3851G33SDRBT
Active
Texas Instruments Simple Reset/Power-On Reset, TPS3851G33SDRBT, active-low open-drain output, 3.3V threshold, 170ms minimum reset timeout, -40°C to 125°C junction temperature, 8-VDFN exposed pad package, 8-SON (3x3) supplier device package.
$3.1100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 3.3V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C~125°C(TJ) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Reset timeout | 170ms Minimum |
| Case | 8-VDFN Exposed Pad |
Product details
Frequently asked questions
What is the exact reset timeout of TPS3851G33SDRBT?
The reset timeout is a minimum of 170 ms — the part holds the reset output low for at least this duration after the supply rises above the threshold.
Is TPS3851G33SDRBT a direct replacement for TPS3851G33QDRBT?
The evidence does not list a direct-replacement cross-reference between these two order codes. The base product number TPS3851 suggests the same die family, but the suffix variants may differ in qualification or packaging — verify the full datasheet before substituting in a BOM position.