SGM2225
800mA, High Voltage, Low Noise
and Low Dropout Voltage Regulator
GENERAL DESCRIPTION
FEATURES
The SGM2225 is a high voltage, low noise and low
dropout voltage linear regulator. It is capable of
supplying 800mA output current with typical dropout
voltage of only 450mV. The operating input voltage
range is from 3.6V to 36V.
● Wide Operating Input Voltage Range: 3.6V to 36V
● Fixed Outputs of 1.8V, 2.5V, 3.3V, 5.0V and 12V
● Adjustable Output from 1.8V to 15V
● Output Voltage Accuracy: ±1.5% at +25℃
● Low Dropout Voltage: 450mV (TYP) at 800mA
● Current Limiting and Thermal Protection
● Excellent Load and Line Transient Responses
● With Output Automatic Discharge
Other features include logic-controlled shutdown mode,
short-circuit current limit and thermal shutdown
protection. The SGM2225 has automatic discharge
function to quickly discharge VOUT in the disabled status.
● No-Load Stability
● -40℃ to +125℃ Operating Temperature Range
● Available in Green SOT-223-3, SOT-89-3, SOIC-8,
TDFN-3×3-8L and TO-263-5B Packages
The SGM2225 is available in Green SOT-223-3,
SOT-89-3, SOIC-8, TDFN-3×3-8L and TO-263-5B
packages. It operates over an operating temperature
range of -40℃ to +125℃.
APPLICATIONS
Cellular Telephones
Palmtop Computers
High-Efficiency Linear Power Supplies
Portable Equipment
Battery-Powered Systems
TYPICAL APPLICATIONS
VIN
IN
OUT
VOUT
VIN
IN
OUT
BYP
VOUT
SGM2225-FIX
SGM2225-FIX
(SOT-223-3/SOT-89-3)
(SOIC-8)
EN
CIN
1μF
CIN
1μF
COUT
2.2μF
COUT
2.2μF
GND
GND
CBYP
10nF
Figure 1. Fixed Voltage Typical Application Circuit
Figure 2. Low Noise Regulator (Fixed Voltage Version)
VIN
VOUT
IN
OUT
SGM2225-ADJ
CFF
4.7pF
(SOIC-8/TDFN-3×3-8L/
TO-263-5B)
R1
R2
COUT
2.2μF
CIN
1μF
EN
ADJ
GND
Figure 3. Low Noise Regulator (Adjustable Voltage Version)
SG Micro Corp
NOVEMBER2022 – REV. A. 3
www.sg-micro.com