Texas Instruments LM34902
The LM34902 is a 0.3A PFET switch used to control the input voltage of electronic devices. It is easily integrated into system designs that have a 2.8V to 5.3V voltage rail. The IC monitors the presence of a downstream electronic device via a dedicated pin to decide whether to turn on the PFET switch.| Part No. | LM34902 |
|---|---|
| Datasheet | LM34902 Download |
| Manufacturer |  Texas Instruments |
| Description | 300mA Current Limited Power Switch |
| Buy | Stock & Price |
FEATURES
1●2 Input Voltage of 2.8V to 5.3V
● 0.3A Maximum Switch Current
● 0.64Ω Typical Total On-Resistance
● Load Detection
● Enable/Disable
● Switch On Indicator
● Peak Current Limit
● Thermal Shutdown
● 6-Bump Thin DSBGA Package
APPLICATIONS
● Handsets, Tablets, Notebooks● Portable devices
DESCRIPTION
Besides the 0.45Ω PFET switch, the LM34902 can be enabled or disabled by a logic signal. A power good signal generated by the IC can be used by system control to determine the status of the switch. The LM34902 also provides over-current and overtemperature protection. The IC comes in a tiny 6bump Thin DSBGA package. Typical Application Circuit VCC Main: 2.8V to 5.3V 1.8V 220k VCC A1 ACC_PWR A2 LM34902 GND ENABLE PC B1 B2 POK C1 ACC_DET C2 220k VIN Accessory Device 1M Accessory Detection 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
