AP1086TXXL-U

AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Description AP1086 is a low dropout positive adjustable or fixed-mode regulator with 1.5A 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. AP1086 is also well suited for other applications such as VGA cards. AP1086 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs of 1.25V to 5.0V with 4.7 to 12V input supply by different output voltage. Pin Assignments (Top View) 3 2 1 Tab is VOUT VIN VOUT Adj (GND) TO252-3L (Top View) 3 2 VIN VOUT Adj (GND) Features • • • • • • • • 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V,3.3V, 5.0V 1.4V Maximum Dropout at Full Load Current Fast Transient Response Built-in Thermal Shutdown Output Current Limiting Lead Free Packages: TO252-3L, TO263-3L, TO220-3L TO252-3L, TO263-3L, and TO220-3L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1) 1 Tab is VOUT TO263-3L (Top View) 3 2 1 Tab is VOUT VIN VOUT Adj (GND) TO220-3L Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. Typical Application Circuit 5V to 3.3V Fixed Mode Regulator 5V C1 100uF Vin Vout GND Tab is Vout 3.3V/1.5A C2 100uF Vin Vout Adj Tab is Vout R1 121 Ω R2 121 Ω 5V C1 100uF Adjustable Regulator VOUT=Vref × (1+R2/R1) 2.5V/1.5A C2 100uF Note: Vo = V RE ∗ F ( R2 +) 1 R1 June 2010 © Diodes Incorporated AP1086 Document number: DS31028 Rev. 6 - 2 1 of 10 www.diodes.com AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Pin Descriptions Pin Name Adj (GND) VOUT O I/O Pin # 1 2 Description Adjustable (Ground only for fixed mode) The output of the regulator. A minimum of 10uF capacitor must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor 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 higher than VOUT in order for the device to regulate properly. VIN I 3 Functional Block Diagram VIN 3 2 VOUT + + CURRENT LIMIT + Thermal Shutdown 1 Adj 1.25V + Absolute Maximum Ratings Symbol VIN TST TMJ Parameter DC Supply Voltage Storage Temperature Maximum Junction Temperature Rating -0.3 to 12 -65 to +150 150 Unit V o C o C Recommended Operating Conditions Symbol Top Parameter Operating Junction Temperature Range Min 0 Max 125 Unit o C AP1086 Document number: DS31028 Rev. 6 - 2 2 of 10 www.diodes.com June 2010 © Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Electrical Characteristics (Under Operating Conditions) Parameter Reference Voltage AP1086-Adj AP1086-1.5 AP1086-1.8 Output Voltage AP1086-2.5 AP1086-3.3 AP1086-5.0 Line Regulation AP1086-XXX AP1086-Adj AP1086-1.5 AP1086-1.8 Load Regulation AP1086-2.5 AP1086-3.3 AP1086-5.0 Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current (Note 4) Thermal Regulation Ripple Rejection AP1086-Adj/-2.5/ -3.3/-3.6/-5.0 AP1086-Adj/-2.5/ -3.3/-3.6/-5.0 AP1086-XXX Conditions TA = 25 C, (VIN-VOUT)= 1.5V,IO = 10mA IOUT = 10mA, TA = 25 C, 3V≦VIN≦12V IOUT = 10mA, TA = 25 C, 3.3V≦VIN≦12V IOUT = 10mA, TA = 25οC, 4V≦VIN≦12V IOUT = 10mA, TA = 25οC, 4.8V≦VIN≦12V IOUT = 10mA, TA = 25 C, 6.5V≦VIN≦12V IO = 10mA, VOUT+1.5V