Specifications
| Type | Description |
|---|---|
| Part Number | TPS386000 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package Case | 20-pin VQFN, 4.00 mm x 4.00 mm |
| Number of Voltage Supervisors | 4; independent voltage supervisors |
| Monitored Rail Count | 4 rails >0.4 V and 1 rail <0.4 V; includes negative voltage monitoring capability |
| Channel 1 Threshold Range | Adjustable down to 0.4 V; SVS-1 sense threshold |
| Channels 2 and 3 Threshold Range | Adjustable down to 0.4 V; SVS-2 and SVS-3 sense thresholds |
| Channel 4 Threshold Capability | Any positive or negative voltage; SVS-4 adjustable threshold |
| Channel 4 Comparator Type | Window comparator; SVS-4 uses two comparators |
| Threshold Accuracy | 0.25% typical; voltage supervisor threshold accuracy |
| Reset Delay Time Range | 1.4 ms to 10 s; programmable independently through CTn pin connection |
| Quiescent Current | 11 uA typical; device operating current |
| Watchdog Timer | Dedicated output; watchdog timer with WDO output |
| TPS386000 Output Type | Open-drain RESETn and WDO; TPS386000 variant |
| TPS386040 Output Type | Push-pull RESETn and WDO; TPS386040 variant |
| Manual Reset Input | Active-low MR; only SVS-1, logic low asserts RESET1 |
| Package | VQFN-20; TPS3860x0 package |
| Package Body Size | 4.00 mm x 4.00 mm nominal; TPS3860x0 VQFN package |
| Supply Pin | VDD, pin 14; supply voltage input |
| Recommended VDD Bypass Capacitor | 0.1 uF ceramic capacitor; connect close to VDD pin |
| Ground Pin | GND, pin 12; ground connection |
| SENSE1 Pin | Pin 10; monitor voltage input to SVS-1, RESET1 asserted when below VITN |
| SENSE2 Pin | Pin 9; monitor voltage input to SVS-2, RESET2 asserted when below VITN |
| SENSE3 Pin | Pin 8; monitor voltage input to SVS-3, RESET3 asserted when below VITN |
| SENSE4L Pin | Pin 7; falling monitor input to SVS-4, RESET4 asserted when below VITN |
| SENSE4H Pin | Pin 6; rising monitor input to SVS-4, RESET4 asserted when above VITP |
| Unused SENSE4H Connection | Connect to GND when SENSE4H is not used |
| CT Fixed Delay Resistor Range | 40 kOhm to 200 kOhm; connect CTn to VDD through resistor or leave open for fixed delay |
| CT Programmable Delay Capacitor | >220 pF; connect capacitor between CTn and GND for programmable delay |
| VREF Pin | Pin 13; reference voltage output for negative rail monitoring with SENSE4H |
| VREF External Resistor Restriction | Do not connect resistor(s) to voltage higher than 1.2 V; VREF only sources current into resistor(s) |
| VREF Capacitor Restriction | Do not connect only a capacitor; VREF pin usage restriction |
| Watchdog Trigger Input | WDI, pin 20; positive or negative logic edge prevents watchdog timeout |
| Watchdog Timer Timeout Prevention Interval | 610 ms typical; logic edge on WDI every 610 ms prevents timeout at WDO |
| Watchdog Timer Start Condition | Starts from releasing event of RESET1; WDI timer operation |
| Thermal Pad Connection | Connect only to GND or floating thermal pattern; IC substrate pad on PCB |
| Datasheet Status | request_only |
Product Overview
TPS386000 provides 0.25% typical voltage supervisor threshold accuracy and 11 uA typical operating current. Reset delay timing is independently programmable through CTn pin connections from 1.4 ms to 10 s, using either fixed-delay resistor selection or a capacitor greater than 220 pF to GND for programmable delay. The TPS386000 variant uses open-drain RESETn and WDO outputs.
Key Features
- Four independent voltage supervisors
- Monitors four rails above 0.4 V
- Supports one rail below 0.4 V
- SVS-4 supports positive or negative voltage monitoring
- SVS-4 uses a two-comparator window comparator
- 0.25% typical voltage supervisor threshold accuracy
- 1.4 ms to 10 s reset delay range
- 11 uA typical device operating current
- Open-drain RESETn and WDO outputs
- Dedicated watchdog output with WDI trigger input
Typical Applications
- Multi-rail supply monitoring
- Negative rail supervision
- Processor reset generation
- Window voltage monitoring
- Watchdog timer supervision
- Programmable reset delay circuits
- Power rail fault detection
Procurement Notes
When requesting a quote for TPS386000, 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
How many rails can TPS386000 monitor?
TPS386000 includes four independent voltage supervisors. The extracted datasheet facts specify monitoring for four rails above 0.4 V and one rail below 0.4 V, including negative voltage monitoring capability through the SVS-4 channel.
What output type does the TPS386000 variant use?
The TPS386000 variant uses open-drain RESETn and WDO outputs. The extracted facts separately identify TPS386040 as the push-pull RESETn and WDO variant, so the open-drain output statement applies specifically to TPS386000.
How is reset delay configured on TPS386000?
Reset delay is programmable independently through CTn pin connections over a 1.4 ms to 10 s range. A 40 kOhm to 200 kOhm resistor to VDD or an open CTn selects fixed delay, while a capacitor greater than 220 pF to GND provides programmable delay.
What bypass capacitor is recommended for VDD?
The extracted facts specify VDD on pin 14 and recommend a 0.1 uF ceramic capacitor connected close to the VDD pin. GND is identified as pin 12 for the ground connection.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 12, 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.