Advanced Power Electronics Corp.
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
www.DataSheet4U.com AP E1086
Features
• • • • •
General Description
APE1086 is a low dropout positive adjustable or fixed-mode regulator with minimum of 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. APE1086 is also well suited for other applications such as VGA cards. APE1086 is guaranteed to have <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.
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
RoHS Compliant
Ordering Information
APE1086 X X
Low Dropout Regulator
Package H : TO252-3L S : TO263-3L P : TO220-3L
Vout Blank : Adj 15 = 1.5V 18 = 1.8V 25 = 2.5V 33 = 3.3V 50 = 5.0V
Typical Application
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
Adjustable Regulator
C1 100uF
VOUT=Vref × (1+R2/R1) 2.5V/1.5A C2 100uF
Note: Vo = VREF ∗ (1+
R2 ) R1
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.
200313072-1/6
Advanced Power Electronics Corp.
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
www.DataSheet4U.com AP E1086
Block Diagram
Vin
3
2
Vout
+ +
-
1.25V CURRENT LIMIT +
+
THERMAL SHUTDOWN
1
Adj (GND)
Connection Diagram
3 PIN TO263 FRONT VIEW 3 PIN TO252 FRONT VIEW 3 2 1 Tab is Vout Vin Vout Adj (GND) Tab is Vout 3 PIN TO220 FRONT VIEW 3 2 1 Vin Vout Adj (GND)
3 2 1
Vin Vout Adj (GND)
Tab is Vout
Pin Descriptions
NAME Adj (GND) Vout O I/O PIN # 1 2 FUNCTION 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
-
2/6
Advanced Power Electronics Corp.
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
www.DataSheet4U.com AP E1086
Absolute Maximum Ratings
Symbol Vin PD TST TOP Parameter DC Supply Voltage Power Dissipation Storage Temperature Operating Junction Temperature Range Rating Unit -0.3 to 12 V Internally Limited o -65 to +150 C o 0 to +150 C
Electrical Characteristics
PARAMETER
Reference Voltage Output Voltage APE1086-Adj APE1086-1.5 APE1086-1.8 APE1086-2.5 APE1086-3.3 APE1086-5.0 Line Regulation APE1086-XX APE1086-Adj APE1086-1.5 APE1086-1.8 Load Regulation APE1086-2.5 APE1086-3.3 APE1086-5.0 Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current Thermal Regulation Ripple Rejection RMS Noise (% of VOUT) Temperature Stability Thermal Resistance Junction-to-Ambient (No heat sink ;No air flow) Thermal Resistance Junction-to-Case
(Under Operating Conditions) CONDITIONS
TJ=25 C,(VIN-VOUT)=1.5V,IO=10mA o IOUT = 10mA, TJ = 25 C, 3V≦VIN≦12V o IOUT = 10mA, TJ = 25 C, 3.3V≦VIN≦ 12V IOUT = 10mA, TJ = 25oC, 4V≦VIN≦12V IOUT = 10mA, TJ = 25oC, 4.8V≦VIN≦ 12V o IOUT = 10mA, TJ = 25 C, 6.5V≦VIN≦ 12V I O=10mA, VOUT+1.5V