TPS2055B

www.ti.com DBV-5 D-8 D-16 TPS2045B, TPS2055B TPS2046B, TPS2047B SLVS532C – JULY 2004 – REVISED OCTOBER 2007 CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES FEATURES 1 70-mΩ High-Side MOSFET 250-mA Continuous Current Thermal and Short-Circuit Protection Accurate Current Limit (0.3 A min, 0.7 A max) Operating Range: 2.7 V to 5.5 V 0.6-ms Typical Rise Time Undervoltage Lockout Deglitched Fault Report (OC) No OC Glitch During Power Up Maximum Standby Supply Current: 1-μA (Single and Dual) or 2-μA (Triple) Bidirectional Switch Ambient Temperature Range: –40°C to 85°C ESD Protection UL Pending APPLICATIONS Heavy Capacitive Loads Short-Circuit Protections TPS2045B/TPS2055B DBV PACKAGE (TOP VIEW) OUT IN GND OC EN † TPS2046B D PACKAGE (TOP VIEW) GND IN EN1 EN2 OC1 OUT1 OUT2 OC2 TPS2045B/TPS2055B D PACKAGE (TOP VIEW) GND IN IN EN † OUT OUT OUT OC TPS2047B D PACKAGE (TOP VIEW) GND IN1 EN1 EN2 GND IN2 EN3 NC OC1 OUT1 OUT2 OC2 OC3 OUT3 NC NC NC - No Connection †All enable inputs are active high (EN) for the TPS2055B. DESCRIPTION The TPS204xB/TPS2055B power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic-enable input. Gate drive is provided by an internal charge pump des...