ETA1133 Datasheet | ETA

DESCRIPTION ETA1133 is highly efficient 2.5 MHz, 1.5A input current, step-up DC-to-DC converter. ETA1133 converts input voltages from 2.5 V to 5.25 V to a fixed output voltage of 5.4V. Unlike most step-up converter, it incorporates circuits that disconnect the input from output, during shutdown, short-circuit, output current overloading, or other events when output is higher than the input. This eliminates the need for an external MOSFET and its control circuitry to disconnect the input from output, and provides robust output overload protection. These devices are optimized for batterypowered applications. High efficiency of up to 95% enables an extended battery life in all portable designs. Step-up operation at a switching frequency 2.5 MHz allows using 1u H inductor and 10u F output capacitor. ETA1133 is with a space saving CSP1.2x1.2-9L package. TYPICAL APPLICATION FEATURES - Up to 95% DC-DC Efficiency - Up to 1. 5A Max input current - Output Disconnect - Short-circuit Protection - Output to Input Reversed Current Protection - 45μA No load IQ and light load PFM Mode; BYPASS MODE - Current Mode control - Shutdown at first power up and OTP - Fixed 5.4V output - CSP1.2x1.2-9 package APPLICATIONS - NFC for POS terminal - NFC for Smart Phone - Application with 5.4V Output for General Purpose 4 .7 u F EN BYPASS 1u H B1 SW OUT A1 B2 SW OUT A2 A3 IN ETA1133 B3 EN GP C1 C3 BYPASS GP C2 VOUT 5.4V 10 u F ORDERING INFORMATION .etasolution. PART...