SGM6605
Synchronous Boost
Converter with 1.1A Switch
SG Micro Corp
www.sg-micro.com
NOVEMBER 2021 – REV. B
GENERAL DESCRIPTION
The SGM6605 is a constant frequency, current mode,
synchronous boost switching regulator. The input
voltage can accept the voltage at a range from 2.7V to
5.5V. And the output voltage is adjustable with a peak
of 5.2V. This device also has the 5.0V fixed output
version.
High switching frequency minimizes the sizes of
inductor and capacitor. Integrated power MOSFETs
and internal compensation make the SGM6605 simple
to use and fit the total solution into a compact space.
The SGM6605 enters the power-save mode at light
loads to maintain high efficiency. Anti-ringing control
circuitry reduces EMI concerns by damping the inductor
in discontinuous mode. The SGM6605 provides true
output disconnection, allowing allows V
OUT
to go to zero
volts during shutdown without drawing any current from
the input source. The SGM6605 supports 1.8V logic for
control.
The output voltage of SGM6605-ADJ can be
programmed by an external resistor divider, and that of
SGM6605-5.0 is fixed internally on the chip. The device
is available in a Green SOT-23-6 package. It operates
over an ambient temperature range of -40℃ to +85℃.
FEATURES
● 2.7V to 5.5V Input Voltage Range
● 5.0V Fixed Output Voltage
● Adjustable Output Voltage up to 5.2V
● 90% Peak Efficiency
● 30µA (TYP) Quiescent Current
● 1µA (MAX) Shutdown Current
● 6V Output Voltage Clamping
● Improved Light Load Efficiency with Power-Save
Mode (PSM)
● Load Disconnected in Shutdown Mode
● 1.8V Logic on EN Pin for Control
● Low Reverse Leakage Current when V
OUT
> V
IN
● Over-Temperature Protection
● Available in a Green SOT-23-6 Package
●
-40℃ to +85℃ Operating Temperature Range
APPLICATIONS
Single-Cell Li Battery Powered Products
Portable Audio Players
Mobile Phones
Personal Medical Devices
TYPICAL APPLICATION
C
1
10μF
C
2
10μF
R
1
R
2
ON
OFF
VOUT
SW
GND
EN
VCC
SGM6605
FB
L
4.7μH
Adjustable Output
V
IN
2
4
5
3
6
1
Figure 1. Typical Application Circuit
Synchronous Boost
SGM6605 Converter with 1.1A Switch
2
NOVEMBER 2021
SG Micro Corp
www.sg-micro.com
PACKAGE/ORDERING INFORMATION
MODEL V
OUT
(V)
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
SGM6605
Adjustable SOT-23-6
-40℃ to +85℃
SGM6605-ADJYN6G/TR SI6XX
Tape and Reel, 3000
5.0 SOT-23-6
-40℃ to +85℃
SGM6605-5.0YN6G/TR SI8XX Tape and Reel, 3000
MARKING INFORMATION
NOTE: XX = Date Code.
Date Code - Year
Date Code - Month
Serial Number
YYY X X
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
ABSOLUTE MAXIMUM RATINGS
Input Voltage Range on SW, VOUT, VCC, FB, EN
............................................................................. -0.3V to 6V
Package Thermal Resistance
SOT-23-6, θ
JA
.......................................................... 150℃/W
Junction Temperature ................................................. +150℃
Storage Temperature Range ........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................ +260℃
ESD Susceptibility
HBM ............................................................................. 4000V
MM ................................................................................. 250V
RECOMMENDED OPERATING CONDITIONS
Operating Temperature Range ....................... -40℃ to +85℃
OVERSTRESS CAUTION
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure
to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section
is not implied.
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged if ESD protections are
not considered carefully. 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 even small parametric changes could cause the
device not to meet the published specifications.
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit
design, or specifications
without prior notice.