SGM66051
Efficient Synchronous
Boost Converter with a 2.7A Switch
SG Micro Corp
www.sg-micro.com
JULY 2023 – REV. B. 1
GENERAL DESCRIPTION
The SGM66051 is an internally compensated, 1.1MHz
switching frequency, current mode, synchronous Boost
switching regulator, which is capable of generating 5V
output at 1A load current from a 3.3V rail.
This device
also has the 5.1V fixed output version.
This device turns into power-saving mode to maintain
high efficiency by lowering switching frequency. With its
anti-ringing circuitry damping the charge in parasitic
capacitor, it reduces EMI interference significantly. Its
output is disconnected by the rectifier circuit during
shutdown, with no input to output leakage.
The SGM66051-5.1 is preset for outputting 5.1V, while
the SGM66051-ADJ is output voltage programmable
with an external resistor divider.
The device is available in a Green TSOT-23-6 package
and operates over an ambient temperature range of -40℃
to +85℃.
FEATURES
● 2.2V to 5.1V Input Voltage Range
● 5.1V Fixed Output Voltage
● Adjustable Output Voltage up to 5.1V
● Up to 90% Efficiency
● 20µA (TYP) Quiescent Current
● 1µA (MAX) Shutdown Current
● 6V Output Voltage Clamping
● Improved Light Load Efficiency with Power-Save
Mode (PSM)
● Load Disconnect during Shutdown
● Low Reverse Leakage Current when V
OUT
> V
IN
● Over-Temperature Protection
● Available in a Green TSOT-23-6 Package
● -40
℃ to +85℃ Operating Temperature Range
APPLICATIONS
Single-Cell Li-Ion 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
SGM66051
FB
L
2.2μH
Adjustable Output
V
IN
2
4
5
3
6
1
Figure 1. Typical Application Circuit
Efficient Synchronous
SGM66051 Boost Converter with a 2.7A Switch
2
JULY 2023
SG Micro Corp
www.sg-micro.com
PACKAGE/ORDERING INFORMATION
MODEL VOUT (V)
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
SGM66051
5.1 TSOT-23-6
-40℃ to +85℃
SGM66051-5.1YTN6G/TR G43XX Tape and Reel, 3000
Adjustable
TSOT-23-6
-40℃ to +85℃
SGM66051-ADJYTN6G/TR G45XX 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
TSOT-23-6, θ
JA
.......................................................... 50℃/W
Junction Temperature ................................................ +150℃
Storage Temperature Range ........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s) ........................... +260℃
ESD Susceptibility
HBM ............................................................................ 4000V
MM ................................................................................ 400V
CDM ........................................................................... 1000V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range .......................................... 2.2V to 5.1V
Operating Temperature Range ...................... -40℃ to +85℃
Operating Junction Temperature Range ...... -40℃ to +125℃
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.