APE1085P25

Advanced Power Electronics Corp. 1. Features • • • • • • • • APE1085 Pb Free Plating Product 3A Low Dropout Positive Adjustable or Fixed-Mode Regulator General Description APE1085 is a low dropout positive adjustable or fixed-mode regulator with minimum of 3.0A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3V logic supply. APE1085 is also well suited for other applications such as VGA cards. APE1085 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs of 1.25 to 3.3V with 4.7 to 12V input supply. 1.4V maximum dropout at full load current Built-in thermal shutdown Output current limiting Adjustable output voltage or fixed 1.5V, 1.8V, 2.5V, 3.3V, 5.0V Fast transient response Good noise rejection Package : TO252, TO263, TO220 RoHS Compliant Ordering Information APE 1085 X XX Low Dropout Regulator Package Vout H : TO 252-3L Blank : Adj S : TO263-3L 15 = 1.5V P : TO220-3L 18 = 1.8V 25 = 2.5V 33 = 3.3V 50 = 5.0V Block Diagram Vin 3 2 Vout + + － 1.25V CURRENT LIMIT + Thermal Shutdown 1 Adj － + This datasheet contains new product information. Advanced Power Electronics Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. 200313072-1/10 Advanced Power Electronics Corp. Connection Diagram TO263 FRONT VIEW 3 2 1 Tab is Vout TO220 FRONT VIEW 3 2 1 Tab is Vout Vin Vout Adj (GND) Vout Adj (GND) Vin TO252 APE1085 Pb Free Plating Product 3A Low Dropout Positive Adjustable or Fixed-Mode Regulator FRONT VIEW 3 2 1 Tab is Vout Vin Vout Adj (GND) Pin Descriptions Name Adj (GND) Vout I/O Pin No. TO263/ PDIP-8 252/220 1 2 1 2/3/5/6/ 7/8 Function Adjustable (Ground only for fixed mode) A resistor divider from this pin to the Vout pin and ground sets the output voltage. (Ground only for Fixed-Mode) The output of the regulator. A minimum of 10uF (0.15Ω ≤ ESR ≤ 20Ω) capacitor must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor (0.15Ω ≤ ESR ≤ 20Ω) is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be 1.4V (1.3V) higher than Vout in order for the device to regulate properly. I O Vin I 3 4 Advanced Power Electronics Corp. www.a-power.com.tw 2/10 Advanced Power Electronics Corp. Absolute Maximum Ratings Symbol Vin PD TST TOP Parameter DC Supply Voltage Power Dissipation Storage Temperature Operating Junction Temperature Range APE1085 Pb Free Plating Product 3A Low Dropout Positive Adjustable or Fixed-Mode Regulator Rating Unit -0.3 to 12 V Internally Limited oC -65 to +150 oC 0 to +150 Electrical Characteristics Sym. VREF (Under Operating Conditions) Min. 1.225 1.470 1.764 2.450 3.235 4.900 Parameter Conditions (Notes) Io=10mA, Tj=25 C, (Vin-Vout)=1.5V IO=10mA, VOUT+1.5V