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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.
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EUP7982
Typical Application Circuit
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Figure2. Fixed Voltage LDO Regulator
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Pin Configurations
Part Number Pin Configurations
EUP7982 MSOP-8
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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
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Ordering Information
Order Number
EUP7982MIR1 EUP7982MIR0 EUP7982-18MIR1 EUP7982-18MIR0 EUP7982-25MIR1 EUP7982-25MIR0 EUP7982-28MIR1 EUP7982-28MIR0 EUP7982-30MIR1 EUP7982-30MIR0
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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
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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
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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
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EUP798.