RF-Linear Regulators. SGM2028 Datasheet

SGM2028 Regulators. Datasheet pdf. Equivalent


Shengbang Microelectronics SGM2028
SGM2028
500mA, Ultra Low Dropout,
Low Power, RF Linear Regulators
GENERAL DESCRIPTION
The SGM2028 is a low-power, low-noise, low-dropout,
CMOS linear voltage regulator that operates from a 2.5V
to 5.5V input voltage. It is the perfect choice for low
voltage, low power applications. A low ground current
makes this part attractive for battery operated power
systems. The SGM2028 also offers ultra low dropout
voltage to prolong battery life in portable electronics.
Systems requiring a quiet voltage source, such as RF
applications, will benefit from the SGM2028’s ultra low
output noise (30µVRMS) and high PSRR. An external
noise bypass capacitor connected to the device’s BP pin
can further reduce the noise level.
Other features include output current limit and thermal
shutdown protection.
The SGM2028 is available in Green SOT-23-5 package.
It operates over an ambient temperature range of -40°C
to +85°C.
FEATURES
500mA Guaranteed Output Current
Ultra Low Dropout Voltage
Low Output Noise
Thermal-Overload Protection
Output Current Limit
High PSRR (73dB at 1kHz)
SGM2028-2.8 and SGM2028-ADJ:
110kPull Down Resistor at EN Pin
SGM2028-3.3: No Pull Down Resistor at EN Pin
Available Fixed Output Voltages: 2.8V and 3.3V
Adjustable Output from 1.2V to 5.0V
-40to +85Operating Temperature Range
Available in Green SOT-23-5 Package
APPLICATIONS
Cellular Telephones
Cordless Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Portable/Battery-Powered Equipment
SG Micro Corp
www.sg-micro.com
REV. B. 1


SGM2028 Datasheet
Recommendation SGM2028 Datasheet
Part SGM2028
Description RF-Linear Regulators
Feature SGM2028; SGM2028 500mA, Ultra Low Dropout, Low Power, RF Linear Regulators GENERAL DESCRIPTION The SGM2028 i.
Manufacture Shengbang Microelectronics
Datasheet
Download SGM2028 Datasheet




Shengbang Microelectronics SGM2028
SGM2028
500mA, Ultra Low Dropout,
Low Power, RF Linear Regulators
PACKAGE/ORDERING INFORMATION
MODEL
SGM2028-3.3
SGM2028-2.8
SGM2028-ADJ
VOUT (V)
3.3V
2.8V
ADJ
PIN-
PACKAGE
SOT-23-5
SOT-23-5
SOT-23-5
ORDERING
NUMBER
SGM2028-3.3YN5G/TR
SGM2028-2.8YN5G/TR
SGM2028-ADJYN5G/TR
NOTE: XX = Date Code.
MARKING INFORMATION
SYY X X
Date code - Month ("A" = Jan. "B" = Feb. "L" = Dec.)
Date code - Year ("9" = 2009, "A" = 2010 )
Chip I.D.
For example: S55AJ (2010, October)
PACKAGE
MARKING
S55XX
S58XX
S4BXX
PACKAGE
OPTION
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
ABSOLUTE MAXIMUM RATINGS
IN to GND................................................................. -0.3V to 6V
Output Short-Circuit Duration ...........................................Infinite
EN to GND................................................... -0.3V to (VIN +0.3V)
OUT, BP/FB to GND................................... -0.3V to (VIN + 0.3V)
Power Dissipation, PD @ TA = 25
SOT-23-5.......................................................................... 0.34W
Package Thermal Resistance
SOT-23-5, θJA................................................................367/W
Operating Temperature Range............................-40to +85
Junction Temperature........................................................ 150
Storage Temperature Range............................. -65to +150
Lead Temperature (Soldering, 10s).................................. 260
ESD Susceptibility
HBM.................................................................................4000V
MM.....................................................................................400V
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay
attention to ESD protection. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because
very small parametric changes could cause the device not to
meet its published specifications.
SGMICRO reserves the right to make any change in circuit
design, specification or other related things if necessary without
notice at any time. Please contact SGMICRO sales office to get
the latest datasheet.
NOTE:
Stresses beyond those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. These
are stress ratings only, and functional operation of the device at
these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
SG Micro Corp
www.sg-micro.com
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Shengbang Microelectronics SGM2028
SGM2028
PIN CONFIGURATION (TOP VIEW)
500mA, Ultra Low Dropout,
Low Power, RF Linear Regulators
IN 1
5 OUT
GND 2
EN 3
SOT-23-5
4 BP/FB
PIN DESCRIPTION
PIN NAME
FUNCTION
1
IN
Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1μF
capacitor to GND.
2 GND Ground.
3
EN
Shutdown Input. A logic low reduces the supply current to 10nA. Connect to IN for
normal operation.
4
BP
Reference-Noise Bypass (fixed voltage version only). Bypass with a low-leakage 0.01μF
ceramic capacitor for reduced noise at the output.
FB
Feedback Pin (adjustable voltage version only). This is used to set the output voltage of
the device.
5 OUT Regulator Output.
SG Micro Corp
www.sg-micro.com
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