Specifications
| Type | Description |
|---|---|
| Part Number | TPS3802 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | 5-pin SC-70 (DCK/SOT-323) |
| Function | Supply voltage supervisor with push-pull RESET output; RESET asserted when monitored voltage drops below threshold |
| Reset Delay Time | 400 ms nominal family delay |
| Reset Recovery Delay Time | 240 ms min, 380 ms typ, 560 ms max; VDD >= VIT- + 0.2 V, MR >= 0.7 x VDD, RL=1 MOhm, CL=50 pF, TA=25°C |
| Available TPS3802 Variant | TPS3802L30DCK; threshold voltage 2.64 V typ, typical delay time 380 ms, marking ASA |
| Available TPS3802 Variant | TPS3802K33DCK; threshold voltage 2.93 V typ, typical delay time 380 ms, marking ARK |
| Negative-Going Input Threshold Voltage | 2.58 V min, 2.64 V typ, 2.70 V max; TPS380xL30, TA=-40°C to 85°C |
| Negative-Going Input Threshold Voltage | 2.87 V min, 2.93 V typ, 2.99 V max; TPS380xK33, TA=-40°C to 85°C |
| Threshold Hysteresis | 35 mV; TPS380xx30 threshold option |
| Threshold Hysteresis | 40 mV; TPS380xx33 threshold option |
| Supply Voltage Operating Range | 1.6 V to 4 V; all other devices, including TPS3802K33 and TPS3802L30 |
| Supply Current | 13 uA typ, 18 uA max; TPS3802K33/TPS3802L30, VDD=4 V, MR and output unconnected |
| Supply Voltage Absolute Maximum | 7 V; over operating free-air temperature range |
| RESET Output Type | Push-pull |
| High-Level Output Voltage | VDD - 0.2 V min; RESET, VDD=1.6 V to 6 V, IOH=-500 uA |
| High-Level Output Voltage | VDD - 0.4 V min; RESET, VDD=3.3 V, IOH=-2 mA |
| Low-Level Output Voltage | 0.2 V max; RESET, VDD=1.6 V to 6 V, IOL=500 uA |
| Low-Level Output Voltage | 0.4 V max; RESET, VDD=3.3 V, IOL=2 mA |
| Power-Up Reset Voltage | 0.2 V; VDD >= 1.1 V, IOL=50 uA; lowest supply voltage at which RESET becomes active |
| MR High-Level Input Voltage | 0.7 x VDD min, VDD + 0.3 V max |
| MR Low-Level Input Voltage | 0.3 x VDD max |
| MR High-Level Input Current | -40 uA min, -60 uA typ, -100 uA max; MR=0.7 x VDD, VDD=6 V |
| MR Low-Level Input Current | -130 uA min, -200 uA typ, -340 uA max; MR=0 V, VDD=6 V |
| Manual Reset Function | Low level at MR causes RESET to become active; TPS380x devices except TPS3801-01 |
| MR Internal Pullup | 30 kOhm |
| MR Pulse Width | 100 ns min; VDD >= VIT- + 0.2 V, VIL=0.3 x VDD, VIH=0.7 x VDD, RL=1 MOhm, CL=50 pF, TA=25°C |
| VDD Pulse Width | 3 us min; VDD high=VIT- + 0.2 V, VDD low=VIT- - 0.2 V, RL=1 MOhm, CL=50 pF, TA=25°C |
| MR to RESET Propagation Delay | 15 ns typ; high-to-low output delay, VDD >= VIT- + 0.2 V, VIL=0.3 x VDD, VIH=0.7 x VDD |
| VDD to RESET Propagation Delay | 1 us typ; high-to-low output delay, VIL=VIT- - 0.2 V, VIH=VIT- + 0.2 V |
| Input Capacitance | 5 pF typ; VI=0 V to VDD |
| Operating Free-Air Temperature Range | -40°C to +85°C |
| Operating Junction Temperature Range | -40°C to +85°C |
| Storage Temperature Range | -65°C to +150°C |
| Maximum Low Output Current | 5 mA; absolute maximum ratings, IOL |
| Maximum High Output Current | -5 mA; absolute maximum ratings, IOH |
| ESD Handling Note | Limited built-in ESD protection; leads should be shorted together or device placed in conductive foam during storage or handling |
| Package Quantity | 3000 units; TPS3802K33DCKR and TPS3802L30DCKR, large tape and reel |
| Datasheet Status | request_only |
Product Overview
The TPS3802 is a Texas Instruments supply voltage supervisor for Power_Management designs that require a push-pull RESET output. Within the TPS380x family, RESET is asserted when the monitored voltage drops below the selected threshold. The TPS3802 feature set includes a nominal 400 ms family reset delay, with the TPS3802 reset recovery delay specified at 240 ms minimum, 380 ms typical, and 560 ms maximum under the stated test conditions.
Device options include TPS3802L30DCK with a 2.64 V typical negative-going threshold and TPS3802K33DCK with a 2.93 V typical negative-going threshold. The L30 option has 35 mV threshold hysteresis, while the K33 option has 40 mV hysteresis. The operating supply range is 1.6 V to 4 V, and the supply current is 13 uA typical at VDD = 4 V.
The device is supplied in a 5-pin SC-70 (DCK/SOT-323) package. The MR input supports manual reset operation, where a low level at MR causes RESET to become active, and the functional block includes a 30 kOhm internal pullup. Applications align with supply monitoring, power-up reset generation, manual reset circuits, and compact low-current supervisor placements.
Key Features
- Supply voltage supervisor with push-pull RESET output
- RESET asserts below the monitored voltage threshold
- 400 ms nominal family reset delay
- 380 ms typical TPS3802 reset recovery delay
- 1.6 V to 4 V operating supply range
- 13 uA typical supply current at VDD 4 V
- Manual reset input activates RESET at low level
- 30 kOhm internal pullup on MR input
- 100 ns minimum MR pulse width
- 5-pin SC-70 DCK/SOT-323 package
Typical Applications
- Supply voltage monitoring
- Power-up reset generation
- Manual reset circuits
- 2.64 V threshold supervision
- 2.93 V threshold supervision
- Low-current supervisor designs
- Compact SC-70 board layouts
Procurement Notes
When requesting a quote for TPS3802, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of device is the TPS3802?
The TPS3802 is a Texas Instruments supply voltage supervisor in the Power_Management category. It provides a push-pull RESET output that becomes active when the monitored voltage drops below the device threshold.
Which TPS3802 threshold options are listed?
The listed TPS3802 variants are TPS3802L30DCK with a 2.64 V typical threshold and TPS3802K33DCK with a 2.93 V typical threshold. Both variants list a 380 ms typical delay time.
What is the TPS3802 operating supply voltage range?
For the TPS3802K33 and TPS3802L30 devices, the operating supply voltage range is specified as 1.6 V to 4 V. The absolute maximum supply voltage is 7 V.
How does the manual reset input behave?
For TPS380x devices except TPS3801-01, a low level at MR causes RESET to become active. The MR input has a 30 kOhm internal pullup and a 100 ns minimum pulse-width specification.
What package is used for the TPS3802?
The TPS3802 is identified with a 5-pin SC-70 package, also referenced as DCK or SOT-323. Large tape-and-reel ordering for TPS3802K33DCKR and TPS3802L30DCKR is listed at 3000 units.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 7, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.