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PDF EMP8936-18VC06GRR Data sheet ( Hoja de datos )

Número de pieza EMP8936-18VC06GRR
Descripción 300mA Micropower CMOS Linear Regulator
Fabricantes Elite Semiconductor 
Logotipo Elite Semiconductor Logotipo



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ESMT/EMP
EMP893X
Fast Ultra High-PSRR, Low-Noise, Low-Dropout,
300mA Micropower CMOS Linear Regulator
General Description
The EMP893X series is a family of CMOS linear regulators.
It is consisted of EMP8935, EMP8936 and EMP8938,
featuring 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 preset 1.2V, 1.5V, 1.8V, 2.5V, 2.7V, 2.8V, 3.0V,
3.3V output voltage versions.
Based on its low quiescent current consumption and its
less than 1μA shutdown mode of logical operation, the
EMP893X is ideal for battery-powered applications. It
provides fast turn-on and start-up time by using
dedicated circuitry to pre-charge an optional external
bypass capacitor. This bypass capacitor is used to
reduce the output voltage noise without adversely
affecting the load transient response. The high power
supply rejection ratio of the EMP893X holds well for low
input voltages typically encountered in battery-
operated systems. The regulator is stable with small
ceramic capacitive loads (2.2µF typical).
Additional features include regulation fault detection,
bandgap voltage reference, constant current limiting
and thermal overload protection. The EMP893X is
Available in miniature SOT-23-5, SOT-23-6, TDFN-6 and
MSOP-8 packages.
EMP products is RoHS compliant.
Features
„ Miniature SOT-23-5, SOT-23-6, MSOP-8 and TDFN-6
packages
„ 300mA guaranteed output current
„ 75dB typical PSRR at 1kHz (60dB typical at 10KHz)
„ 30µV RMS output voltage noise (10Hz to 100kHz)
„ 110mV typical dropout at 300mA for MSOP-8
„ 106µA typical quiescent current
„ less than 1μA typical shutdown mode
„ Fast line and load transient response
„ 80µs typical fast turn-on time
„ 2.5V to 5.5V input range
„ Stable with small ceramic output capacitors
„ Over temperature and over current protection
„ ±2% output voltage tolerance
Applications
„ Wireless handsets
„ PCMCIA cards
„ DSP core power
„ Hand-held instruments
„ Battery-powered systems
„ Portable information appliances
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : May 2009
Revision : 7.0
1/22

1 page




EMP8936-18VC06GRR pdf
ESMT/EMP
Typical Application
EMP893X
Pin Functions
Name
VOUT
VIN
GND
NC
CC
SHDN
FAULT
MSOP-8
1, 4
2
3
5
6
7
8
SOT-23-5 SOT-23-6 TDFN-6 Function
5 6 4 Output Voltage Feedback.
Supply Voltage Input. Require a
minimum input capacitor of close to
11 3
1µF to ensure stability and sufficient
decoupling from the ground pin.
2 2 2 Ground Pin.
5 or N/A No Connection
Compensation Capacitor. Connect an
optimum 33nF noise bypass capacitor
44 6
between the CC and the ground pins
to reduce noise in VOUT.
Shutdown Input. Set the regulator into
the disable mode by pulling the SHDN
pin low. To keep the regulator on during
3 3 1 or 5 normal operation, connect the SHDN
pin to VIN. The SHDN pin must not
exceed VIN under all operating
conditions.
Fault Detection Output. The FAULT pin
goes low when the voltage regulating
function fails. Because the FAULT pin
connects to the open-drain output of a
NMOS transistor, a typical 100k Ω
5 N/A or 1
pull-up resistor is required to provide the
necessary output voltage. The FAULT
pin enters the high impedance state
during shutdown and it should be
connected to ground if unused.
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : May 2009
Revision : 7.0
5/22

5 Page





EMP8936-18VC06GRR arduino
ESMT/EMP
EMP893X
Typical Performance Characteristics Unless otherwise specified, VIN = VOUT (NOM) + 0.5V, CIN = COUT =
2.2µF, CCC = 33nF, TA = 25°C, V SHDN = VIN. (Continued)
4.3V
Line Transient
IOUT=10mA
4.3V
Line Transien
IOUT=300mA
3.3V
3.3V
400μs/DIV
Load Transient
VOUT
IOUT
1mA~300mA
400μs/DIV
Dropout Voltage vs. Load Current
(For Different Output Voltages)
400μs/DIV
Enable and Disable
400μs/DIV
Dropout Voltage vs. Load Current
(For Different Output Voltages)
Load Current (mA)
load Current (mA)
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : May 2009
Revision : 7.0
11/22

11 Page







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