AMC76383-2.5

AMC7638 www.addmtek.com DESCRIPTION The AMC7638 series is a low dropout regulator rated for 450mA output current. Low power consumption and high accuracy is achieved through CMOS technology and internal trimmed reference voltage. The AMC7638 series consists of a high-precision voltage reference, error correction circuit, and a current limit output driver. The fast transient response is an outstanding feature for applications with various loads 450mA LOW DROPOUT REGULATOR FEATURES 2% internally trimmed output Input-Output differential of typ. 360mV at 300mA & low quiescent current of 10µA in typical P-MOS output stage with low RDS, ON. Short circuit protection Internal thermal overload protection Enhanced pin-to-pin compatible to the XC62FP series, RT9261/A. 3-Lead SOT-89 and SOT-223 packages. Lead (Pb) free process PACKAGE PIN OUT 3. VOUT 2. VIN 1. GND AMC76381-X.XPKF APPLICATIONS CD ROM, DVD Wireless Communication Systems Digital Camera Battery Powered Applications VOLTAGE OPTIONS AMC76381-1.5 – 1.5V Fixed AMC76381-1.8 – 1.8V Fixed AMC76381-2.5 – 2.5V Fixed AMC76381-3.3 – 3.3V Fixed AMC76382-1.5 – 1.5V Fixed AMC76382-2.5 – 2.5V Fixed AMC76382-3.3 – 3.3V Fixed AMC76383-1.5 – 1.5V Fixed AMC76383-2.5 – 2.5V Fixed AMC76383-3.3 – 3.3V Fixed AMC76385-2.5 – 2.5V Fixed AMC76385-3.3 – 3.3V Fixed 3. VIN 2. GND 1. VOUT AMC76382-X.XPKF 3-Pin Plastic SOT-89 Surface Mount (Top View) 3-Pin Plastic SOT-89 Surface Mount (Top View) 3. VOUT 2. GND 1. VIN AMC76383-X.XSKF 3-Pin Plastic SOT-223 Surface Mount (Top View) 3. VIN 2. VOUT 1. GND AMC76385-X.XSKF 3-Pin Plastic SOT-223 Surface Mount (Top View) TA (OC) -40 to 85 Note: ORDER INFORMATION Plastic SOT-89 Plastic PK 3-pin SK 3-pin SOT-223 AMC76381-X.XPKF AMC76382-X.XPKF AMC76383-X.XSKF AMC76385-X.XSKF 1. All surface-mount packages are available in Tape & Reel. Append the letter “T” to part number (i.e. AMC76381-X.XPKFT, AMC76383-X.XSKFT). 2. The letter ”F” is marked for Lead Free process. 1 DD054_N -MAY 2007 Copyright © 2007 ADDtek Corp. AMC7638 TYPICAL APPLICATION VIN AMC7638 CIN 1µF COUT 4.7µF VOUT ABSOLUTE MAXIMUM RATINGS Input Voltage, VIN Maximum Operating Junction Temperature, TJ Storage Temperature Range Lead Temperature (soldering, 10 seconds) (Note) 13V 150OC -65OC to 150OC 260OC Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. RECOMMENDED OPERATING CONDITIONS Parameter Input Voltage Load Current (with adequate heat sinking) Input Capacitor (VIN to GND) Output Capacitor with ESR of 10Ω max., (VOUT to GND) Operating ambient temperature range Operating junction temperature Symbol VIN IO Min. 3.0 5 0.1 1.0 -40 Typ. 300 Max. 10 500 Units V mA µF µF O C O C TA TJ 85 125 POWER DISSIPATION TABLE Package PK Note: θJA ( C/ W ) O Derating factor (mW/OC ) TA ≥ 25OC 14.1 TA ≤ 25OC Power rating (mW) 1763 TA=70OC Power rating (mW) 1128 TA= 85OC Power rating (mW) 916 71(Note) TJ = TA + (PD × θJA) PD: Power dissipation. θJA: Thermal resistance from Junction to Ambient. For PK package, θJT = 35O C / W. TJ = TTAB + (PD × θJT) TTAB: Tab temperature. θJT: Thermal resistance from junction to tab of the package. The θJA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no ambient airflow. Copyright © 2007 ADDtek Corp. 2 DD054_N -- MAY 2007 AMC7638 BLOCK DIAGRAM VIN Current Limiter VOUT VREF GND ELECTRICAL CHARACTERISTICS Unless otherwise specified, VIN = VOUT(TYP) + 1V, IO = 10mA, COUT = 4.7µF, TA=25 OC. (Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter AMC7638X-1.5 AMC7638X-1.8 AMC7638X-2.5 AMC7638X-3.3 Symbol Test Conditions Min 1.470 1.764 2.450 3.234 Typ 1.500 1.800 2.500 3.300 0.2 15 45 100 300 150 450 200 600 8 Max 1.530 1.836 2.550 3.366 0.4 30 80 180 550 300 800 400 1100 20 Units Output Voltage VO ∆VOI ∆VOL IO = 10mA VIN = (VOUT + 0.5V) to 10V 10mA ≤ IO ≤100mA 10mA ≤ IO ≤ 300mA IO = 100mA VO>2.5V IO = 300mA IO = 100mA 2.0V