SGM2019
Low Power, Low Dropout,
RF
- Linear Regulators
GENERAL DESCRIPTION
The SGM2019 series low-power, low-noise, low-dropout,
CMOS linear voltage regulators operate from a 2.5V to
5.5V input voltage. They are the perfect choice for low
voltage, low power applications. A low ground current
makes this part attractive for battery operated power
systems. The SGM2019 series also offer 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 SGM2019
series’ ultra low output noise (30µV
RMS
) and high PSRR.
An external noise bypass capacitor connected to the
device’s BP pin can further reduce the noise level.
The output voltage is preset to voltages in the range of
1.2V to 5.0V. Other features include a 10nA logic-
controlled shutdown mode, foldback current limit and
thermal shut-down protection.
The SGM2019 is available in Green SOT-23-5 and
SC70-5 packages. It operates over an ambient
temperature range of -40℃ to +85℃.
APPLICATIONS
Cellular Telephones
Cordless Telephones
PHS Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Portable/Battery-Powered Equipment
FEATURES
y Low Output Noise
y Low Dropout Voltage
y Thermal-Overload Protection
y Output Current Limit
y High PSRR (74dB at 1kHz)
y 10nA Logic-Controlled Shutdown
y Available in Multiple Output Voltage Versions
y Fixed Outputs of 1.2V, 1.5V, 1.8V, 2.5V, 2.6V, 2.8V,
3.0V, 3.3V
y Adjustable Output from 1.2V to 5.0V
y -40℃ to +85℃ Operating Temperature Range
y Available in Green SC70-5 and SOT-23-5 Packages
PRODUCT NAME STRUCTURE
SGM2019 - X X X G / TR
Operating Temperature Range
Output Voltages
Package Type
Green Product
Tape and Reel
C5 SC70-5
N5 SOT-23-5
Y -40℃ to +85℃
1.2 1.2V
1.5 1.5V
1.8 1.8V
2.5 2.5V
2.6 2.6V
2.8 2.8V
3.0 3.0V
3.3 3.3V
ADJ adjustable
REV. B. 3
代理商-联盛科技-0755-82514856 82514858
代理商-联盛科技-0755-82514856 82514858
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