Doris Lee
| Picture | Part Number | Manufacturer | Stock | Action |
|---|---|---|---|---|
 | TPS22860DBVR | Texas Instruments | 3,420 |
VIN is the rail being switched; VBIAS powers the control circuitry. TI specifies VBIAS from 1.65 to 5.5 V and VIN from zero to VBIAS. Keep the bias path in the energy budget even when the load-side rail is off. Validate ON levels at the selected VBIAS and check every power sequence rather than treating the two supply pins as interchangeable.
At VIN = VBIAS = 3.3 V, TI gives 0.92 ohm typical at 25 C and 1.31 ohm maximum over -40 to 85 C under the table's test conditions. For an assumed steady 100 mA load, I x R gives 92 mV typical or 131 mV using the maximum resistance; I squared x R gives 9.2 or 13.1 mW. Include startup and interconnect losses separately.
A connected signal can provide another power path to the peripheral. Measure full-system sleep current with the actual host interface states, and observe VIN, VBIAS, ON and VOUT through startup, sleep and resume. TI's bias and VIN leakage rows have different voltages and switch states; a low isolated-device leakage figure does not account for external backfeed paths.
Category: Component Selection & Alternatives
By Doris Lee
TPS22860DBVR is a TI 200 mA load switch with an independently powered VBIAS pin. Its low bias and shutdown currents support small switched loads, but battery savings also depend on on-resistance, duty cycle and the surrounding circuit. The correct comparison starts with the complete rail budget, not a single leakage figure.
A battery-powered sensor may spend most of its time asleep and briefly wake a peripheral. A load switch can reduce the peripheral's off-state consumption, but its own control supply remains part of the calculation. The decision is whether the complete switched rail consumes less energy over the actual operating cycle.
*Figure 1. A 100 mA scenario at VIN = VBIAS = 3.3 V produces a calculated 92-131 mV drop and 9.2-13.1 mW conduction loss. Bias uses VBIAS = 3.3 V with no-load quiescent VIN = ON = 3.3 V or shutdown ON low; off-state VIN leakage uses VIN = 3 V, VOUT = 1 V and ON low. Transition and peripheral energy remain application inputs.* *Figure 2. VIN switches the load rail while VBIAS powers the control circuitry. Include ON levels, load startup and host interface states in the sequencing test; the dashed interface path marks a potential backfeed route, not guaranteed isolation.*TPS22916CYFPR and TPS22918DBVR are 2 A selection comparisons. The former uses DSBGA; the latter provides CT/QOD functions rather than TPS22860's VBIAS interface and pin map. Compare active voltage drop, control consumption, turn-on behavior and discharge requirements. TPS22918's six-pin package class does not eliminate PCB and sequencing work.
State quantity, required date, DBVR packing and required lot records. Identify whether it supports a released VIN/VBIAS arrangement or a new evaluation. For alternatives, provide the active load, allowable drop, sleep budget, startup capacitance and permitted PCB changes as engineering requirements. Obtain current delivery and carrier terms from the offer, keeping evaluation material distinct from production replenishment.
TI's TPS22860 datasheet, SLVSD04, pages 3-5, specifies VBIAS from 1.65 to 5.5 V and VIN from zero to VBIAS. The continuous switch-current rating is 200 mA. The independent bias connection is central to the design: VIN is the rail being switched, while VBIAS supplies the control circuitry.
At 3.3 V bias, the electrical table gives typical VBIAS quiescent and shutdown currents of 10 nA at 25 C, with 100 nA maxima over -40 to 85 C. Quiescent current uses VIN = VON = VBIAS = 3.3 V and no load; shutdown uses ON low. The off-state VIN row instead lists 2 nA typical and 50 nA maximum with VIN = 3 V, VOUT = 1 V and ON low. Bias current, input leakage and load current belong to different paths. Add them only after matching the voltages and states.
For purchasing, this is a useful way to define the device requirement. Ask engineering which path dominates during sleep, what current the peripheral draws when active, and how often it wakes. A lower catalog leakage number is valuable only if it improves the complete application budget.
The same datasheet gives 0.92 ohm typical on-resistance at VIN = VBIAS = 3.3 V, 25 C and a 100 mA test current. Its corresponding maximum over the specified -40 to 85 C range is 1.31 ohm. The headline 0.68 ohm value refers to a different, 5 V bias condition; it should not be substituted into a 3.3 V calculation.
Consider a simple, explicitly assumed 100 mA steady load on a 3.3 V rail. Voltage drop is I times R, and switch conduction loss is I squared times R. These relations let engineering see the cost of the active interval before deciding whether low standby consumption compensates for it.
Table 1. Calculated TPS22860DBVR conduction scenario
| Resistance basis at VIN = VBIAS = 3.3 V | Drop at an assumed 100 mA | Switch loss at that current |
|---|---|---|
| 0.92 ohm typical, 25 C | 92 mV | 9.2 mW |
| 1.31 ohm maximum across specified temperature range | 131 mV | 13.1 mW |
Source: TI electrical table, page 4. Arithmetic by YG GROUP; these are scenario calculations, not measured board results or a battery-life forecast.
The peripheral sees the rail after this drop, along with other interconnect losses. A circuit operating close to its minimum supply deserves particular attention during its highest current interval. A larger-capacitance load also draws charging current at startup, so the steady-state calculation does not replace a measured turn-on waveform.
For a duty-cycled product, multiply conduction loss by the active fraction and add the energy of each transition. Include both the off-state peripheral path and the always-powered bias path. The objective is a realistic energy budget over time, not a dramatic claim about how many extra months a battery will last.
The startup portion of that review has a different application context in YG GROUP's MIC95410YFL-TR auxiliary-rail article. Here the task is a 200 mA switched sensor rail: compare the actual load capacitance and bias path before carrying a supply-switching approach into the battery design.
Keeping VBIAS present while VIN is removed can be useful, but the selected power tree must respect the datasheet conditions. The device's off-state behavior is not a reason to assume a completely unpowered bias circuit isolates every possible backfeed path. Review VIN, VBIAS, ON and the load's signal connections through all power states.
A peripheral can receive energy through an interface even when its main supply is switched off. The engineering test should therefore include the connected host, not only a resistor on VOUT. Measure shutdown current with the actual signal states and observe the rail as the host starts, sleeps and resumes.
ON thresholds are also conditional. Validate that the controller's guaranteed high and low output levels satisfy the limits at the selected VBIAS. Do not infer universal logic compatibility from the fact that a typical bench unit switches when driven by a familiar GPIO voltage.
The useful approval record includes startup loading, signal states and the sequence that returns the peripheral to service. That helps production distinguish an actual device issue from a power-tree or control-sequence problem.
TPS22860DBVR alternatives become worth evaluating when active current, voltage-drop allowance or controlled startup sets the limit. Both candidates below are 2 A switches, with materially different implementations from the primary 200 mA device.
Table 2. Related TI load-switch ordering codes
| Complete code | Reason to compare | Main validation consequence |
|---|---|---|
| TPS22916CYFPR | 2 A load-switch option with a small DSBGA package and controlled turn-on | Reassess package, startup behavior, discharge path and complete power budget |
| TPS22918DBVR | 2 A SOT-23 option with configurable rise time and output discharge | Review CT/QOD functions and pin assignment; a six-pin package name does not establish interchangeability |
Sources: TI exact TPS22916CYFPR and TPS22918DBVR product pages. The matrix is a selection comparison, not a substitute approval.
A higher-current, lower-resistance switch may make sense when the active load or voltage-drop allowance drives the decision. It can be less attractive if its control consumption or implementation adds to a very small sleep budget. The useful comparison is operating energy, voltage margin, startup behavior and assembly effort together.
The TPS22860DBVR vs TPS22918DBVR comparison changes the power-tree interface: TPS22918 uses CT and QOD, while TPS22860 provides VBIAS and a different functional pin map. Plan the new PCB connections, rise-time setting and discharge behavior together. A lower-resistance active path then has a defined engineering cost rather than an assumed six-pin substitution.
The approved BOM should carry the complete TPS22860DBVR code and its application assumptions: VIN, VBIAS, active and standby current, timing and temperature. TI's ordering addendum identifies the DBV six-pin SOT-23 device and reel arrangement. Preserve the exact code and receiving requirements without treating the reel suffix as an electrical alternative.
Before accepting a different switch, agree on a small set of meaningful regression measurements: load-side voltage during the active pulse, total system sleep current, turn-on charging behavior and recovery after power cycling. Perform them on the intended host and peripheral, with defined limits.
TPS22860DBVR is a low-current power-tree choice, not a universal battery-life solution. Its procurement case becomes stronger when the low-leakage benefit is weighed against voltage drop and sequencing under the real operating cycle. That is the budget a purchasing manager can use to compare the engineering cost of alternatives alongside the commercial offer.
Request a TPS22860DBVR quote from YG GROUP with the full DBVR code, quantity, required date and packing conditions. State whether the purchase sustains an approved VIN/VBIAS arrangement or supports an evaluation build. Name any permitted alternative explicitly, with its board-approval status, and confirm delivery and lot-document conditions before release.