DESCRIPTION
The TJ1509A series are monolithic IC designed for a step-down DC/DC converter, and own the ability of driving a 2A load without additional transistor component. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlled by logic level and then come into standby mode.

FEATURES
● Output voltage: 3.3V, 5V, 12V and adjustable output version
● Adjustable version output voltage range, 1.23V to 18V+4%
● 150KHz +15% fixed switching frequency
● Voltage mode non-synchronous PWM control
● Thermal-shutdown and current-limit protection
● ON/OFF shutdown control input
● Operating voltage can be up to 26V
● Output load current: 2A
● SOP-8L packages
● Low power standby mode
● Built-in switching transistor on chip
● Moisture Sensitivity Level 3

APPLICATIONS
● Simple High-efficiency step-down regulator
● On-card switching regulators
● Positive to negative converter
● Negative Step-Up Converters
● Power Supply for Battery Chargers