Specifications
| Type | Description |
|---|---|
| Part Number | TPS25940 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | WQFN (RVC), 20 pins, 3.00 mm x 4.00 mm nominal body |
| Operating voltage range | 2.7 to 18 V, 20 V max; device input operating range |
| On-resistance | 42 mOhm typ; internal FET RON |
| Adjustable current limit | 0.6 to 5.3 A, +/-8%; programmable by ILIM resistor |
| Current monitor accuracy | +/-8%; IMON current indicator output |
| Operating supply current | 200 uA typ; enabled operating mode |
| DevSleep supply current | 95 uA typ; DevSleep mode |
| Disabled supply current | 15 uA typ; disabled mode |
| Overvoltage and undervoltage threshold accuracy | +/-2%; programmable OVP and UVLO thresholds |
| Reverse voltage shutoff time | 1 us; reverse voltage event |
| Operating junction temperature range | -40 to 125 °C; recommended operating range |
| Variant behavior | TPS25940L = latched, TPS25940A = auto retry; device information note |
| Absolute maximum input voltage | -0.3 to 20 V; IN, OUT, PGTH, PGOOD, EN/UVLO, OVP, DEVSLP, FLT pins |
| Absolute maximum transient input voltage | 22 V; IN pin, 10 ms transient |
| Absolute maximum dVdT and ILIM voltage | -0.3 to 3.6 V; dVdT and ILIM pins |
| Absolute maximum IMON voltage | -0.3 to 7 V; IMON pin |
| Maximum sink current | 10 mA; PGOOD, FLT, dVdT pins |
| Maximum junction temperature | -40 to 150 °C; absolute maximum rating |
| Storage temperature range | -65 to 150 °C; absolute maximum rating |
| HBM ESD rating | +/-2000 V; ANSI/ESDA/JEDEC JS-001 |
| CDM ESD rating | +/-500 V; JEDEC JESD22-C101 |
| Recommended input voltage | 2.7 to 18 V; IN pin |
| Recommended control and output pin voltage | 0 to 18 V; EN/UVLO, OVP, DEVSLP, OUT, PGTH, PGOOD, FLT pins |
| Recommended ILIM resistance | 16.9 to 150 kOhm; ILIM resistor to GND |
| Recommended OUT capacitance | 0.1 uF; external capacitance on OUT |
| Recommended dVdT capacitance | 470 nF; external capacitance on dVdT |
| Junction-to-ambient thermal resistance | 38.1 °C/W; RVC 20-pin package |
| Junction-to-case bottom thermal resistance | 3.4 °C/W; RVC 20-pin package |
| Internal UVLO threshold rising | 2.2 min, 2.3 typ, 2.4 max V; supply voltage and internal UVLO |
| Internal UVLO hysteresis | 105 min, 116 typ, 125 max mV; supply voltage and internal UVLO |
| Enabled supply current at 12 V | 140 min, 199 typ, 260 max uA; VEN/UVLO=2 V, VIN=12 V |
| Disabled supply current at 12 V | 6 min, 15 typ, 20 max uA; VEN/UVLO=0 V, VIN=12 V |
| DevSleep mode supply current | 70 min, 95 typ, 130 max uA; VDEVSLP=0 V, VIN=2.7 to 18 V |
| EN/UVLO threshold rising | 0.97 min, 0.99 typ, 1.01 max V; EN/UVLO input |
| EN/UVLO threshold falling | 0.9 min, 0.92 typ, 0.94 max V; EN/UVLO input |
| OVP threshold rising | 0.97 min, 0.99 typ, 1.01 max V; OVP input |
| OVP threshold falling | 0.9 min, 0.92 typ, 0.94 max V; OVP input |
| DEVSLP threshold rising | 1.6 min, 1.85 typ, 2.0 max V; DEVSLP active-high input |
| DEVSLP threshold falling | 0.8 min, 0.96 typ, 1.1 max V; DEVSLP active-high input |
| dVdT charging current | 0.85 min, 1 typ, 1.15 max uA; VdVdT=0 V |
| dVdT to OUT gain | 11.65 min, 11.9 typ, 12.05 max V/V; Delta VOUT / Delta VdVdT |
| Current limit with 20 kOhm ILIM | 4.09 min, 4.45 typ, 4.81 max A; RILIM=20 kOhm, VIN-VOUT=1 V |
| DevSleep mode current limit | 0.55 min, 0.67 typ, 0.8 max A; DevSleep mode |
| Datasheet Status | request_only |
Product Overview
The TPS25940 is a Texas Instruments eFuse power switch for Power_Management designs requiring controlled input power switching, programmable protection thresholds, and current monitoring. Its device input operating range is 2.7 to 18 V, with 20 V maximum input rating and a 22 V, 10 ms transient rating on the IN pin.
The internal FET has 42 mOhm typical on-resistance. Current limit is resistor-programmable from 0.6 to 5.3 A with +/-8% accuracy, and the IMON output provides +/-8% current indicator accuracy. Programmable OVP and UVLO thresholds are specified with +/-2% accuracy, while reverse-voltage events are shut off in 1 us.
The device is supplied in a WQFN (RVC), 20-pin package with a 3.00 mm x 4.00 mm nominal body. Recommended external components include 16.9 to 150 kOhm on ILIM, 0.1 uF on OUT, and 470 nF on dVdT. The RVC package has 38.1 °C/W junction-to-ambient thermal resistance and 3.4 °C/W junction-to-case-bottom thermal resistance.
Key Features
- 2.7 to 18 V recommended input operating range
- 42 mOhm typical internal FET on-resistance
- 0.6 to 5.3 A adjustable current limit
- +/-8% IMON current indicator output accuracy
- +/-2% programmable OVP and UVLO threshold accuracy
- 1 us reverse-voltage event shutoff time
- 200 uA typical enabled operating supply current
- 95 uA typical DevSleep mode supply current
- 15 uA typical disabled supply current
- TPS25940L latched and TPS25940A auto-retry variants
Typical Applications
- Input power path protection
- Programmable current-limited power switching
- OVP and UVLO rail control
- Reverse-voltage shutoff circuits
- DevSleep power rail management
- Current-monitored load switching
- 2.7 to 18 V power systems
Procurement Notes
When requesting a quote for TPS25940, 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 input voltage range does TPS25940 support?
TPS25940 supports a 2.7 to 18 V recommended input operating range on the IN pin. The extracted ratings also list 20 V maximum input capability and a 22 V maximum transient input voltage for 10 ms on the IN pin.
How is the TPS25940 current limit configured?
The current limit is programmable by an ILIM resistor. The extracted facts specify an adjustable current-limit range of 0.6 to 5.3 A with +/-8% accuracy, and a recommended ILIM resistance range of 16.9 to 150 kOhm to GND.
What package is used for TPS25940?
TPS25940 is listed in a WQFN (RVC) package with 20 pins and a 3.00 mm x 4.00 mm nominal body. The RVC package thermal data includes 38.1 °C/W junction-to-ambient and 3.4 °C/W junction-to-case-bottom resistance.
What is the difference between TPS25940L and TPS25940A?
The extracted device information note identifies variant behavior only: TPS25940L is the latched version, while TPS25940A provides auto-retry behavior. No additional variant differences are stated in the provided extracted facts.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 20, 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.