TS2596
3A / 150KHz Buck Dc-Dc Converter
TO-220-5L TO-263-5L 2 (D PAK)
Pin Definition: 1. Input 2. SW Output 3. Ground 4. Feedback 5. Enable
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 80µA (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~37V ±4% 150KHz fixed switching frequency Voltage Mode Non-synchronous PWM control Thermal Shutdown and Current Limit Protection ON/OFF Shutdown Control Input High Efficiency Short Circuit Protect (SCP) Operating Voltage Can be up to 40V Output Load Current 3A Low Power Standby Mode P+ Product Enhancement Tested
Ordering Information
Part No. Package Packing
TS2596CZ5xx C0 TO-220-5L 50pcs / Tube TS2596CM5xx RN TO-263-5L 800pcs / 13” Reel Note: Where xx denotes voltage option, available are 50= 5.0V 33= 3.3V Leave blank for adjustable version
Application
● ● ● Simple High-efficiency Step down Regulator On-Card Switching Regulators Positive to Negative Converter
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 (HBM)
Symbol
VCC VOP VSW, VEN VFB PD VOUT TST TOP
Limit
+45 4.5 to 40 -0.3 to +25 -0.3 to +25 Internally Limited -1 -65 to +150 -40 to +125 2
Unit
V V V V W V o C o C kV
1 /8
Version: C07
TS2596
3A / 150KHz Buck Dc-Dc Converter
Thermal Information
Parameter
Thermal Resistance* (Junction to Case) Thermal Resistance* (Junction to Ambient) TO-220-5L TO-263-5L TO-220-5L TO-263-5L
Symbol
ӨJC ӨJA
Maximum 2 2 50 50
2
Unit
o
C/W C/W
o
Note: ӨJA is measured with the PCB copper area (need connect to GROUND 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, Adjustable 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 Short 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 Current 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 Condition
4.5V≤ VIN ≤40V 0.2A≤ ILOAD ≤3A VIN =12V, ILOAD =3A, VOUT =5V 4.75V≤ VIN ≤40V 0.2A≤ ILOAD ≤3A VIN =12V, ILOAD =2A 7V≤ VIN ≤40V 0.2A≤ ILOAD ≤3A VIN =12V, ILOAD =3A VFB =1.3V (Adj version only) Rising edge of EN on to ICL Pear Current, no outside circuit VFB =0V force driver on When current limit occurred and o VFB
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