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EUP7982 Dataheets PDF



Part Number EUP7982
Manufacturers Eutech Microelectronics
Logo Eutech Microelectronics
Description 300mA Low-Noise LDO
Datasheet EUP7982 DatasheetEUP7982 Datasheet (PDF)

EUP7982 300mA Low-Noise Ultra Low-Dropout CMOS Regulator with Fault Indicator FEATURE DESCRIPTION The EUP7982 low-noise, low-dropout, linear regulator operates from a 2.5V to 5.5V input and is guaranteed to deliver 300mA. The EUP7982 is stable with small 2.2µF ceramic capacitor. Its performance suits battery powered applications because of its shutdown mode (60 nA www.DataSheet4U.com typ), low quiescent current (110µA typ), and LDO voltage (140mV typ). The low dropout voltage allows for more uti.

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EUP7982 300mA Low-Noise Ultra Low-Dropout CMOS Regulator with Fault Indicator FEATURE DESCRIPTION The EUP7982 low-noise, low-dropout, linear regulator operates from a 2.5V to 5.5V input and is guaranteed to deliver 300mA. The EUP7982 is stable with small 2.2µF ceramic capacitor. Its performance suits battery powered applications because of its shutdown mode (60 nA www.DataSheet4U.com typ), low quiescent current (110µA typ), and LDO voltage (140mV typ). The low dropout voltage allows for more utilization of a battery’s available energy by operating closer to its end-of-life voltage. An output fault-detection circuit indicates loss of regulation. The EUP7982 is available in MSOP package with 1.8V, 2.5v, 2.8V, 3V, 3.3V, and adjustable versions. z z z z z z z z z z z z z z z z 2.5V to 5.5V Input Range 300mA Guaranteed Output Current 60dB PSRR at 1kHz 50µV RMS Output Voltage Noise (10Hz to 100kHz) 140mV Dropout at 300mA Low 110µA No-Load Supply Current ≤ 1µA Shutdown Current Fast Start-up Time Stable With 2.2µF Ceramic Output Capacitors Thermal Shutdown and Short-Circuit Protection Fault Indicator RoHS Compliant and 100% Lead (Pb)-Free Wireless Handsets DSP Core Power Battery Powered Electronics Portable Information Appliances APPLICATIONS Block Diagram Figure1. DS7982 Ver 1.4 May.2005 1 EUP7982 Typical Application Circuit www.DataSheet4U.com Figure2. Fixed Voltage LDO Regulator DS7982 Ver 1.4 May.2005 2 EUP7982 Pin Configurations Part Number Pin Configurations EUP7982 MSOP-8 www.DataSheet4U.com Pin Description PIN PIN DESCRIPTION OUT IN GND SET CC 1,4 2 3 5 6 Output voltage of the LDO Input voltage of the LDO Common Ground Output voltage set. Not externally connected for the fixed versions. Connect ot resistor-divider for adjustable output voltage. Compensation capacitor for noise reduction SHDN FAULT 7 8 SHDN places the entire device in shutdown mode when held low. Fault output. A high-impedance, open-drain output. If the circuit is out of regulation, FAULT goes low. In shutdown, this pin is high Impedance. Connect to GND if unused DS7982 Ver 1.4 May.2005 3 EUP7982 Ordering Information Order Number EUP7982MIR1 EUP7982MIR0 EUP7982-18MIR1 EUP7982-18MIR0 EUP7982-25MIR1 EUP7982-25MIR0 EUP7982-28MIR1 EUP7982-28MIR0 EUP7982-30MIR1 EUP7982-30MIR0 www.DataSheet4U.com Package Type MSOP-8 MSOP-8 MSOP-8 MSOP-8 MSOP-8 MSOP-8 Marking CA ¡¼ ¡¼ P7982 C1 ¡¼ ¡¼ P7982 C2 ¡¼ ¡¼ P7982 C6 ¡¼ ¡¼ P7982 C5 ¡¼ ¡¼ P7982 C3 ¡¼ ¡¼ P7982 Operating Temperature range -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C EUP7982-33MIR1 EUP7982-33MIR0 EUP7982 ¡¼ ¡¼ ¡¼ ¡¼ ¡¼ ¡¼ Lead Free Code 1: Lead Free 0: Lead Packing R: Tape & Reel Operating temperature range I: Industry Standard C: Commercial Package Type M: MSOP Output Voltage 18: 1.8V 25: 2.5V 28: 2.8V 30: 3.0V 33: 3.3V Blank: Adjustable DS7982 Ver 1.4 May.2005 4 EUP7982 Absolute Maximum Ratings „ „ „ „ „ VIN, VOUT, V SHDN , VSET , VCC, V FAULT --------------------------------------------- -0.3V to 6V Fault Sink Current --------------------------------------------------------------------------------20mA Storage Temperature Range ------------------------------------------------------------- -65°C to 160°C Junction Temperature (TJ) -----------------------------------------------------------------------150°C Lead Temperature (10 sec.) ------------------------------------------------------------------------260°C Electrical Characteristics Unless otherwise specified, all limits guaranteed for VIN= VO +0.5V, VSHDN=VIN, CIN=COUT=2.2µF, CCC=22nF, TJ =25°C. (Boldface limits apply for the operating temperature extremes: -40°C and 85°C) Symbol www.DataSheet4U.com Parameter Input Voltage Output Voltage Tolerance Output Adjust Range Maximum Output Current Output Current Limit Supply Current Shutdown Supply Current Conditions 100µA ≤ IOUT ≤ 300mA VIN=VO+0.5V, SET= OUT for the Adjust Versions Adjust Version Only Average DC Current Rating IOUT=0mA IOUT=300mA VO =0V, SHDN =GND IOUT =1mA IOUT =200mA IOUT =300mA IOUT = 1mA, (VO +0.5V) ≤ VI ≤ 5.5V 100µA ≤ IOUT ≤ 300mA IOUT =10mA, 10Hz ≤ f ≤ 100kHz VIH,(VO+0.5V) ≤ VI ≤ 5.5V VIL,(VO+0.5V) ≤ VI ≤ 5.5V SHDN =GND or IN EUP7982 Min Typ Max. 2.5 -2 -3 1.25 300 5.5 +2 +3 5.5 Unit V % of VOUT(NOM) V mA mA µA µA mV %/V %/mA µVRMS V nA nA mV V nA °C µs VIN ∆ VO VO IO ILIMIT IQ 600 110 240 0.06 0.4 90 140 -0.1 200 1 200 VDO Dropout Voltage Line Regulation Load Regulation ∆ VO en VSHDN ISHDN ISET V FAULT 0.05 0.002 50 0.1 Output Voltage Noise SHDN Input Threshold SHDN Input Bias Current 2 0.4 0.1 0.1 150 0.13 0.1 160 20 100 2.5 280 0.25 SET Input Leakage FAULT Detection Voltage FAULT Output Low Voltage SET = 1.3V, Adjust Version Only VO ≥ 2.5V, IOUT =200mA ISINK=2mA FAULT =3.6V, SHDN =0V I FAULT FAULT Off-Leakage Current TSD Thermal Shutdown Temperature 100 Thermal Shutdown Hysteresis TON Start-Up Time COUT =10µF, VO at 90% of Final Value 80 DS7982 Ver 1.4 May.2005 5 EUP798.


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