Design Considerations
USB
Universal Serial Bus (USB) Power Managers | 27 |
|
|
| ➔ |
| Power Distribution Switches |
Dual Power Switch + LDO for USB
Ease of
USB Power Managers Family of Products
|
|
|
| Current Limit (min) (A) |
|
|
| |
| 0.22 | 0.3 | 0.66 | 0.7 | 1.1 | 1.5 | 1.65 | 2.2 |
USB Power Distribution Switches |
|
|
|
|
|
| ||
Quad | — | TPS2048A/58A | — | TPS2044B/54B | — | — | — | — |
Triple | — | TPS2047B/57A | — | TPS2043B/53B | TPS2063/67 | — | — | — |
Dual | — | TPS2046B/56A | — | TPS2042B/52B | TPS2062/66 | TPS2060/64 | — | — |
Single | TPS2020/30 | TPS2045A/55A | TPS2021/31 | TPS2041B/51B | TPS2022/32/61/65 | — | TPS2023/33 | TPS2024/34 |
|
| Bus Power |
|
|
| Mode |
|
| |
Device | Controller | Indicator | Pins | Package |
|
| |||
TPS2070 | Yes | Active Low | 32 | HTSSOP |
TPS2071 | Yes | Active High | 32 | HTSSOP |
TPS2074 | No | Active Low | 24 | SSOP |
TPS2075 | No | Active High | 24 | SSOP |
Dual Power Switch + LDO for USB
| TPS2145/55 |
|
| TPS2147/57 |
|
| TPS2148/58 |
|
| TPS2149/59 |
| |
|
|
|
|
|
|
|
| |||||
VIN/SW1 | LDO | LDO_OUT | VIN/SW1 | LDO | LDO_OUT | VIN/SW1 | LDO | LDO_OUT | VIN | LDO | LDO_OUT | |
LDO_ADJ | ||||||||||||
|
|
|
|
|
|
|
|
|
|
| ||
LDO_EN |
| OC1 |
|
| OC1 | LDO_EN |
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
| ||
|
| OUT1 |
|
| OUT1 | EN1 |
| OUT1 |
|
| OUT1 | |
EN1 |
|
| EN1 |
|
|
|
| EN1 |
| OC | ||
|
|
|
|
|
|
|
| |||||
SW2 |
| OUT2 | SW2 |
| OUT2 |
|
| OUT2 |
|
| OUT2 | |
EN2 |
| OC2 | EN2 |
| OC2 | EN2 |
|
| EN2 |
|
| |
GND |
|
| GND |
|
| GND |
|
| GND |
|
|
Texas Instruments 4Q 2006 | Interface Selection Guide |