TPS22921, TPS22922, and TPS22922B are small, low rON load switches with controlled turnon. The TPS22921/2/2B contains a P-channel MOSFET that can operate over an input voltage range of 0.9 V to 3.6 V. The switch is controlled by an on/off input (ON), which can interface directly with low-voltage control signals. In TPS22922 and in TPS22922B, a 65-Ω on-chip load resistor is added for output quick discharge when the switch is turned off. The rise time (slew rate) of the device is internally controlled in order to avoid inrush current: TPS22921 and TPS22922 feature a 30-μs rise time, whereas TPS22922B is 200 μs.
TPS22921, TPS22922, and TPS22922B feature low quiescent and shutdown currents and are available in space-saving 6-pin wafer-chip-scale packages DSBGA (WCSP: YZP and YZT with 0.5-mm pitch and YFP with 0.4-mm pitch) which make them ideal for portable electronics. The devices are characterized for operation over the free-air temperature range of –40°C to 85°C.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS22921(1) | YZT | 0.9 mm × 1.4 mm |
YZP | ||
YFP | 0.8 mm × 1.2 mm | |
TPS22922 TPS22922B |
YZP | 0.9 mm × 1.4 mm |
YFP | 0.8 mm × 1.2 mm |
Changes from B Revision (May 2012) to C Revision
Changes from A Revision (December 2008) to B Revision
Changes from * Revision (November 2008) to A Revision
RON AT 1.8 V (TYP) |
RISE TIME (TYP at 1.8 V) |
QUICK OUTPUT DISCHARGE(1) |
MAX OUTPUT CURRENT |
ENABLE | |
---|---|---|---|---|---|
TPS22921 | 33 mΩ | 30 μs | No | 2 A | Active high |
TPS22922 | 33 mΩ | 30 μs | Yes | 2 A | Active high |
TPS22922B | 33 mΩ | 200 μs | Yes | 2 A | Active high |
C | ON | GND |
B | VIN | VOUT |
A | VIN | VOUT |
2 | 1 |
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
A1 | VOUT | O | Switch output |
A2 | VIN | I | Switch input. Use a bypass capacitor to ground (ceramic) |
B1 | VOUT | O | Switch output |
B2 | VIN | I | Switch input. Use a bypass capacitor to ground (ceramic) |
C1 | GND | – | Ground |
C2 | ON | I | Switch control input, active high. Do not leave floating |
MIN | MAX | UNIT | ||||
---|---|---|---|---|---|---|
VIN | Input voltage | –0.3 | 4 | V | ||
VOUT | Output voltage | VIN + 0.3 | V | |||
VON | Input voltage | –0.3 | 4 | V | ||
P | Power dissipation at TA = 25°C | 0.645 | W | |||
IMAX | Maximum continuous switch current | 2 | A | |||
TA | Operating free-air temperature | –40 | 85 | °C | ||
Tlead | Maximum lead temperature (10-s soldering time) | 300 | °C | |||
Tstg | Storage temperature | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±3000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1000 | |||
Machine model (MM) | ±300 |
MIN | MAX | UNIT | ||
---|---|---|---|---|
VIN | Input voltage range | 0.9 | 3.6 | V |
VOUT | Output voltage range | VIN | V | |
VIH | High-level input voltage, ON | 0.85 | 3.6 | V |
VIL | Low-level input voltage, ON | 0.4 | V | |
CIN | Input capacitor | 1(1) | µF |
THERMAL METRIC(1) | TPS22921, TPS22922, TPS22922B | TPS22921 | UNIT | ||
---|---|---|---|---|---|
YFP | YZP | YZT | |||
6 PINS | |||||
RθJA | Junction-to-ambient thermal resistance | 125.1 | 131 | 120.7 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 1.4 | 1.3 | 2.1 | |
RθJB | Junction-to-board thermal resistance | 26 | 22.6 | 26.4 | |
ψJT | Junction-to-top characterization parameter | 0.3 | 5.2 | 3.7 | |
ψJB | Junction-to-board characterization parameter | 26 | 22.6 | 26.4 |
PARAMETER | TEST CONDITIONS | TA | MIN | TYP(1) | MAX | UNIT | ||
---|---|---|---|---|---|---|---|---|
IQ | Quiescent current | IOUT = 0 mA | VIN = 1 V | Full | 30 | 120 | nA | |
VIN = 1.8 V | Full | 78 | 235 | |||||
VIN = 3.6 V | Full | 200 | 880 | |||||
IIN(OFF) | OFF-state supply current | VON = GND, OUT = Open |
VIN = 1 V | Full | 10 | 210 | nA | |
VIN = 1.8 V | Full | 35 | 260 | |||||
VIN = 3.6 V | Full | 120 | 700 | |||||
IIN(LEAKAGE) | OFF-state switch current | VON = GND, VOUT = 0 V |
VIN = 1 V | Full | 12 | 140 | nA | |
VIN = 1.8 V | Full | 50 | 230 | |||||
VIN = 3.6 V | Full | 130 | 610 | |||||
rON | ON-state resistance | IOUT = –200 mA | VIN = 3.6 V | 25°C | 14 | 45 | mΩ | |
Full | 50 | |||||||
VIN = 2.5 V | 25°C | 20 | 55 | |||||
Full | 60 | |||||||
VIN = 1.8 V | 25°C | 33 | 65 | |||||
Full | 75 | |||||||
VIN = 1.2 V | 25°C | 67 | 100 | |||||
Full | 120 | |||||||
VIN = 1.1 V | 25°C | 82 | 150 | |||||
Full | 160 | |||||||
VIN = 1 V | 25°C | 116 | 160 | |||||
Full | 170 | |||||||
rPD | Output pulldown resistance | VIN = 3.3 V, VON = 0 V, IOUT = 30 mA (TPS22922 and TPS22922B only) |
25°C | 65 | 120 | Ω | ||
ION | ON input leakage current | VON = 1.1 V to 3.6 V or GND | Full | 25 | nA |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 121 | 121 | 638 | μs | ||||||
CL = 1 μF | 160 | 160 | 712 | ||||||||||
CL = 3 μF | 188 | 188 | 799 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 46 | 40 | 40 | μs | ||||||
CL = 1 μF | 308 | 279 | 279 | ||||||||||
CL = 3 μF | 975 | 807 | 807 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 60 | 60 | 462 | μs | ||||||
CL = 1 μF | 85 | 85 | 465 | ||||||||||
CL = 3 μF | 107 | 107 | 507 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 119 | 51 | 51 | μs | ||||||
CL = 1 μF | 969 | 434 | 434 | ||||||||||
CL = 3 μF | 3174 | 1264 | 1264 |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 105 | 105 | 549 | μs | ||||||
CL = 1 μF | 136 | 136 | 613 | ||||||||||
CL = 3 μF | 157 | 157 | 683 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 46 | 28 | 28 | μs | ||||||
CL = 1 μF | 309 | 186 | 186 | ||||||||||
CL = 3 μF | 983 | 511 | 511 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 51 | 51 | 386 | μs | ||||||
CL = 1 μF | 78 | 78 | 388 | ||||||||||
CL = 3 μF | 88 | 88 | 419 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 121 | 34 | 34 | μs | ||||||
CL = 1 μF | 986 | 306 | 306 | ||||||||||
CL = 3 μF | 3300 | 908 | 908 |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 91 | 93 | 484 | μs | ||||||
CL = 1 μF | 118 | 118 | 540 | ||||||||||
CL = 3 μF | 137 | 137 | 599 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 44 | 21 | 21 | μs | ||||||
CL = 1 μF | 311 | 144 | 144 | ||||||||||
CL = 3 μF | 99 | 383 | 383 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 46 | 46 | 335 | μs | ||||||
CL = 1 μF | 60 | 60 | 336 | ||||||||||
CL = 3 μF | 76 | 76 | 363 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 122 | 29 | 29 | μs | ||||||
CL = 1 μF | 1000 | 224 | 224 | ||||||||||
CL = 3 μF | 3300 | 732 | 732 |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 83 | 83 | 435 | μs | ||||||
CL = 1 μF | 103 | 103 | 485 | ||||||||||
CL = 3 μF | 122 | 122 | 536 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 44 | 17 | 17 | μs | ||||||
CL = 1 μF | 312 | 117 | 117 | ||||||||||
CL = 3 μF | 1000 | 319 | 319 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 41 | 41 | 301 | μs | ||||||
CL = 1 μF | 54 | 54 | 302 | ||||||||||
CL = 3 μF | 67 | 67 | 325 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 123 | 25 | 25 | μs | ||||||
CL = 1 μF | 1000 | 214 | 214 | ||||||||||
CL = 3 μF | 3400 | 632 | 632 |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 54 | 54 | 282 | μs | ||||||
CL = 1 μF | 67 | 67 | 314 | ||||||||||
CL = 3 μF | 78 | 78 | 344 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 41 | 10 | 10 | μs | ||||||
CL = 1 μF | 312 | 67 | 67 | ||||||||||
CL = 3 μF | 1000 | 181 | 181 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 30 | 30 | 200 | μs | ||||||
CL = 1 μF | 37 | 37 | 202 | ||||||||||
CL = 3 μF | 47 | 47 | 219 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 121 | 17 | 17 | μs | ||||||
CL = 1 μF | 1000 | 158 | 158 | ||||||||||
CL = 3 μF | 3450 | 461 | 461 |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 40 | 40 | 211 | μs | ||||||
CL = 1 μF | 50 | 50 | 233 | ||||||||||
CL = 3 μF | 59 | 59 | 256 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 41 | 10 | 10 | μs | ||||||
CL = 1 μF | 316 | 56 | 56 | ||||||||||
CL = 3 μF | 1000 | 153 | 153 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 23 | 23 | 164 | μs | ||||||
CL = 1 μF | 29 | 29 | 165 | ||||||||||
CL = 3 μF | 38 | 38 | 177 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 122 | 16 | 16 | μs | ||||||
CL = 1 μF | 1086 | 147 | 147 | ||||||||||
CL = 3 μF | 3600 | 430 | 430 |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 30 | 30 | 182 | μs | ||||||
CL = 1 μF | 38 | 38 | 201 | ||||||||||
CL = 3 μF | 45 | 45 | 221 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 40 | 10 | 10 | μs | ||||||
CL = 1 μF | 353 | 51 | 51 | ||||||||||
CL = 3 μF | 1036 | 139 | 139 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 20 | 20 | 149 | μs | ||||||
CL = 1 μF | 25 | 25 | 150 | ||||||||||
CL = 3 μF | 33 | 33 | 161 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 104 | 15 | 15 | μs | ||||||
CL = 1 μF | 1030 | 143 | 143 | ||||||||||
CL = 3 μF | 3230 | 419 | 419 |
PARAMETER | TEST CONDITIONS | TPS22921 | TPS22922 | TPS22922B | UNIT | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | MIN | TYP | MAX | |||||
tON | Turn-ON time | RL = 500 Ω | CL = 0.1 μF | 30 | 30 | 159 | μs | ||||||
CL = 1 μF | 38 | 38 | 175 | ||||||||||
CL = 3 μF | 45 | 45 | 193 | ||||||||||
tOFF | Turn-OFF time | RL = 500 Ω | CL = 0.1 μF | 42 | 10 | 10 | μs | ||||||
CL = 1 μF | 310 | 51 | 51 | ||||||||||
CL = 3 μF | 988 | 139 | 139 | ||||||||||
tr | VOUT rise time | RL = 500 Ω | CL = 0.1 μF | 20 | 20 | 137 | μs | ||||||
CL = 1 μF | 25 | 25 | 138 | ||||||||||
CL = 3 μF | 33 | 33 | 148 | ||||||||||
tf | VOUT fall time | RL = 500 Ω | CL = 0.1 μF | 120 | 15 | 15 | μs | ||||||
CL = 1 μF | 1100 | 143 | 143 | ||||||||||
CL = 3 μF | 3600 | 419 | 419 |