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EMP8731-02VF05NRR Schematic ( PDF Datasheet ) - Elite Semiconductor

Teilenummer EMP8731-02VF05NRR
Beschreibung 300mA CMOS Linear Regulator
Hersteller Elite Semiconductor
Logo Elite Semiconductor Logo 




Gesamt 13 Seiten
EMP8731-02VF05NRR Datasheet, Funktion
ESMT
Preliminary
EMP8731
High-PSRR, Low-Noise, 300mA CMOS Linear
Regulator with 3 Types of Output Select
General Description
The EMP8731 features ultra-high power supply
rejection ratio, low output voltage noise, low
dropout voltage, low quiescent current and fast
transient response. It guarantees delivery of 300mA
output current and supports 3 types of output
voltages via ADJ pin.
Based on its low quiescent current consumption and
its less than 1µA shutdown mode of logical operation,
the EMP8731 is ideal for battery-powered
applications. The high power supply rejection ratio
of the EMP8731 holds well for low input voltages
typically encountered in battery-operated systems.
The regulator is stable with small ceramic capacitive
loads (2.2µF typical). The EMP8731 is available in
miniature SOT-23-5 packages.
Applications
Wireless handsets
PCMCIA cards
DSP core power
Hand-held instruments
Battery-powered systems
Portable information appliances
Features
300mA guaranteed output current
60dB typical PSRR at 1kHz
130µV (VOUT=3.0V) RMS output voltage noise
(10Hz to 100kHz)
264mV (VOUT=2.8V) typical dropout at 300mA
60µA typical quiescent current
Less than 1µA typical shutdown mode
Fast line and load transient response
2.2V to 5.5V input range
Auto-discharge during chip disable
60µs typical turn-on time
Stable with small ceramic output capacitors
Over temperature and over current
protection
±2% output voltage tolerance
Typical Application
Elite Semiconductor Memory Technology Inc.
Publication Date: Oct. 2013
Revision: 0.3
1/13






EMP8731-02VF05NRR Datasheet, Funktion
ESMT
Preliminary
EMP8731
Typical Performance Characteristics
Unless otherwise specified, VIN = VOUT (NOM) + 1V, VEN=VIN, CIN = COUT = 2.2µF, TA = 25°C
PSRR vs. Frequency (VOUT=2.8V)
PSRR vs. Frequency (VOUT=3.0V)
Cround Current vs. VIN (VOUT=1.8V)
70.0uA
60.0uA
50.0uA
40.0uA
30.0uA
20.0uA
10.0uA
0.0uA
0.0V 1.0V 2.0V 3.0V 4.0V 5.0V 6.0V
Ground Current vs. IOUT (VOUT=1.8V)
160.0uA
140.0uA
120.0uA
100.0uA
80.0uA
60.0uA
40.0uA
20.0uA
0.0uA
0mA
50mA 100mA 150mA 200mA 250mA 300mA
Output Voltage Noise
Output Current Limit
Elite Semiconductor Memory Technology Inc.
Publication Date: Oct. 2013
Revision: 0.3
6/13

6 Page









EMP8731-02VF05NRR pdf, datenblatt
ESMT
Revision History
Revision
0.1
0.2
0.3
Preliminary
EMP8731
Date
2011.12.12
2012.04.02
2013.10.16
Description
Original
1. Revise output voltage tolerance spec for Vout<1.8V
option (page 4)
2. Revise VDO typing error (page 4)
3. Revise package outline drawing (page 11)
Modify package outline drawing
Elite Semiconductor Memory Technology Inc.
Publication Date: Oct. 2013
Revision: 0.3
12/13

12 Page





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