TAIWAN SEMICONDUCTOR 3A / 150kHz Step-Down DC-DC Converter GENERAL DESCRIPTION The TS2596 Series are step-down switching regulators with all required active functions. It is capable of driving 3A load with excellent line and load regulations. These devices are available in fixed output voltages of 3.3V, 5V, and an adjustable output version. The TS2596 series operates at a switching frequency of 150kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. It substantially not only reduces the area of board size but also the size of heat sink, and in some cases no heat sink is required. The ±4% tolerance on output voltage within specified input voltages and output load conditions is guaranteed. Also, the oscillator frequency accuracy is within ±10%. External shutdown is included. Featuring 100pA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions. FEATURES • Output voltage: 3.3V, 5V & adjustable version • Adjustable output voltage range 1.23V~38.5V • 150kHz fixed switching frequency • Voltage mode Non-synchronous PWM control • Thermal shutdown and current limit protection • ON/OFF shutdown control input • Short circuit protect (SCP) • Operating voltage can be up to 40V • Output load current 3A • Low power standby mode • Built-in switching transistor on chip • Compliant to RoHS Directive 2011/65/EU and in accordance to WEEE 2002/96/EC. • Halogen-free according to IEC 61249-2-21 APPLICATION • Simple High-efficiency Step down Regulator • On-Card Switching Regulators • Positive to Negative Converter ® RoHS%ogjn Pb-Free COMPLIANT rhicb Notes: Moisture sensitivity level: level 3. Per J-STD-020 TYPICAL APPLICATIN CIRCUIT Adjustable Output Voltage Version

TAIWAN SEMICONDUCTOR TS2596Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS

TAIWAN SEMICONDUCTOR TS2596Taiwan Semiconductor ELECTRICAL CHARACTERISTICS (VIN = 12V for 3.3V, 5V, Adjustable Version, ILOAD = 0.3A, TA = 25°C unless ot ORDERING INFORMATION BLOCK DIAGRAM Current Source Bias Thermal Limit

TS2596 Taiwan Semiconductor PIN FUNCTION DESCRIPTION VCC This is the positive input supply for the IC switching regulator. A suitable input bypass capacitor must be presented at this pin to minimize voltage transients and to supply the switching currents needed by the regulator. Ground Circuit ground SW Output Internal switch. The voltage at this pin switches between (+VCC – VSAT) and approximately – 0.5V, with a duty cycle of approximately VOUT / VCC. To minimize coupling to sensitive circuitry, the PC board copper area connected to this pin should be minimized. Feedback Sense the regulated...

TAIWAN SEMICONDUCTOR TS2596Taiwan Semiconductor TYPICAL APPLICATIN CIRCUIT Adjustable Output Voltage Version

TS2596 Taiwan Semiconductor ELECTRICAL CHARACTERISTICS CURVES (TC = 25°C unless otherwise noted) Figure 1. Output Ripple Figure 2. Power On Test Wave Figure 3. Load Transient Response Figure 4. EN On Test Wave

TAIWAN SEMICONDUCTOR TS2596Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) TO-263-5L (D2PAK) SUGGESTED PAD LAYOUT (Unit: Millimeters) MARKING DIAGRAM r ^ s YML XX TS2596 Y = Year Code M = Month Code for Halogen Free Product L = Lot Code XX = Voltage Code (3.3=3.3V, 5.0=5V) = Package Code for Adjustable type (CM5 = TO-263-5L)

Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties...