TS2496

TS2496 3A / 150KHz Buck Dc-Dc Converter T O- 2 2 0 - 5 L TO-263-5L 2 (D PAK) Pin Definition: 1. Input 2. SW Output 3. Ground 4. Feedback 5. Enable General Description The TS2496 Series are s tep-down switching regulator s with all required activ e 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 TS2496 ser ies operates at a switching frequency of 150kHz thus allowing s maller sized filter components than what would be needed with lower frequency switching regulators. It substantially not only reduces the area of boar d size but also the size of heat s ink, 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 shutdow n is included. Featuring 80µ A (typical) s tandby current. The output sw itch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions. Features ● ● ● ● ● ● ● ● ● ● ● ● Output Voltage: 3.3V, 5V & Adjus table version Adjus table Output Voltage Range 1.23V~19.5V ±4% 150KHz fixed sw itching frequency Voltage Mode Non-synchronous PW M control Thermal Shutdown and C urrent Limit Protection ON/OFF Shutdown Control Input High Effic iency Shor t Circuit Protec t ( SC P) Operating Voltage C an be up to 24V Output Load Current 3A Low Power Standby Mode P+ Pr oduct Enhancement Tes ted Ordering Information Part No. Package Packi ng TS2496CZ5 C0 TO-220-5L 50pc s / T ube TS2496CZ5xx C0 TO-220-5L 50pc s / T ube TS2496C M5 RN TO-263-5L 800pc s / 13” R ee l TS2496C Mxx RN TO-263-5L 800pc s / 13” R ee l Note: Where xx denotes voltage option, available are 3.3V & 5V. Leave blank for adjustable version Application ● ● ● Simple High-efficiency Step dow n Regulator On-Card Switching Regulators Positive to Negative Conver ter Absolute Maximum Rating Parameter Maximum Supply Voltage Recommend Operating Supply Voltage SW , EN Pin Input Voltage Feedback Pin Voltage Power Dissipation Output Voltage to Ground Storage Temperature Range Operating Temperature Range ESD Susceptibility (H BM) Symbol VCC VOP VSW, VEN VFB PD VOUT TST TOP Limit +2 8 +4.5 to +24 -0.3 to VCC -0.3 to VCC Inter nally Limited -1 - 65 t o + 150 - 20 t o + 125 2 Unit V V V V W V o C o C kV 1/8 Version: A07 TS2496 3A / 150KHz Buck Dc-Dc Converter Thermal Information Parameter Thermal R esistance* (Junc tion to Case) Thermal R esistance* (Junc tion to Ambient) TO-220-5L TO-263-5L TO-220-5L TO-263-5L Symbol ӨJ C ӨJ A Maxi mum 2 2 50 50 2 Unit o C/W C/W o Note: ӨJA is measured with the PC B copper area (need connect to GROUN D pins) of approximately 1.5 in (Multi-layer ) Electrical Specifications (All Output Voltage Version) (Ta = 25 C unless otherwise noted, VIN=12V for 3.3V, 5V, Adjus table version. ILOAD =0.3A) o Parameter Output Feedback Efficiency Output Feedback Efficiency Output Feedback Efficiency Feedback Bias Current Oscillator Frequency Soft- Start Time Current Limit Oscillator Frequency of Shor t Circuit Protect Saturation Voltage ON/OFF Pin Logic Input Threshold Voltage ON/OFF Pin Logic Input Current Maximum Duty Cycle (ON) Maximum Duty Cycle (OFF) Quiescent Current Standby Quiescent Current SW Pin Leakage C ur r ent SW pin = 0 SW pin = -1 5V 3.3V ADJ Symbol VFB η VFB η VFB η IFB FOSC TSS ICL FSCP VSAT VIL VIH IL IH DC IQ ISTBY Test Conditi on 4.5V≤ VIN ≤24V 0.2A≤ ILOAD ≤3A VIN =12V, ILOAD =3A 4.75V≤ VIN ≤24V 0.2A≤ ILOAD ≤3A VIN =12V, ILOAD =2A 7V≤ VIN ≤24V 0.2A≤ ILOAD ≤3A VIN =12V, ILOAD =3A VFB =1.3V (Adj version only) Rising edge of EN on to ICL Pear Current, no outs ide c ircuit VFB =0V force driver on When current limit occurred and o VFB