TPS2140
FEATURES
D plete Power Management Solution for
USB High-Power Peripherals
D 250 m A Low-Dropout Regulator (LDO) With
Enable and 325 m A (Typ) Current Limit
D LDO Supports 2.7 V to 5.5 V VIN and 0.9 V to
3.3 V Adjustable VOUT
D 40 mΩ (Typ) High-Side MOSFET With Dual
Current Limit
D Undervoltage Lockout and Power Good for
LDO and Switch
D CMOS- and TTL-patible Enable Inputs D 85 µA (Typ) Supply Current D 5 µA (Typ) Standby Supply Current D Available in 14-Pin HTSSOP (Power PAD) D
- 40°C to +85°C Ambient Temperature Range D Alternative to TPS2148/58 3.3-V LDO With
3.3-V Switch and 5-V Switch
APPLICATIONS
D High-Power USB Peripherals
- ADSL Modems
- Digital Still and PC Cameras
- Zip Drives
- Speakers
D DSP Sequencing
DESCRIPTION
The TPS2140/41/50/51 is a USB 1.0 and 2.0 Specification-patible IC containing a dual-currentlimiting power switch and an adjustable low dropout regulator (LDO). Both the switch and LDO limit inrush current by controlling the turnon slew rate. The unique...
