SGM6611
12.6V, 7A Fully-Integrated
Synchronous Boost Converter
SG Micro Corp
www.sg-micro.com
OCTOBER 2021 –REV. A. 3
GENERAL DESCRIPTION
The SGM6611 family includes the SGM6611A and the
SGM6611B. The SGM6611 is a fully-integrated
synchronous boost converter. The 2.7V to 12V operating
input voltage is suitable for single-cell or two-cell
Li-Ion/Polymer batteries. This device is capable to
provide 7A continuous switch current and an output
voltage range of 4.5V to 12.6V. It also has an
adjustable switching frequency ranging from 200kHz to
2.2MHz.
The SGM6611 family has two operation modes, the
pulse width modulation (PWM) mode and pulse
frequency modulation (PFM). The SGM6611 family
adopts the PWM mode at moderate to heavy load. The
PFM mode is applied at light load by SGM6611A to
improve the efficiency. However, the SGM6611B still
adopts the PWM mode to prevent the device from low
switching frequency faults. The protection features
include output over-voltage protection at 13.2V,
cycle-by-cycle over-current protection and thermal
shutdown. The device also involves the functions of
4ms built-in soft-start and adjustable switch peak
current limit.
The SGM6611A and SGM6611B are both available in a
Green TQFN-2×2.5-11L package.
FEATURES
● 2.7V to 12V Input Voltage Range
● 4.5V to 12.6V Output Voltage Range
● Up to 90% Efficiency
(V
IN
= 3.3V, V
OUT
= 9V, I
OUT
= 2A)
● Adjustable Peak Current Limit up to 9.5A for
High Pulse Current
● Adjustable Switching Frequency: 200kHz to 2.2MHz
● 4ms Built-in Soft-Start Time
● PFM Operation Mode at Light Load (SGM6611A)
● Forced PWM Operation Mode at Light Load
(SGM6611B)
● Internal Output Over-Voltage Protection at 13.2V
● Over-Current Protection
● Thermal Shutdown
● Available in a Green TQFN-2×2.5-11L Package
APPLICATIONS
Portable POS Machine
Bluetooth Speaker
E-Cigarette
Fast-Charging Power Bank
12.6V, 7A Fully-Integrated
SGM6611 Synchronous Boost Converter
2
OCTOBER 2021
SG Micro Corp
www.sg-micro.com
PACKAGE/ORDERING INFORMATION
MODEL
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
SGM6611A TQFN-2×2.5-11L
-40℃ to +85℃
SGM6611AYTQV11G/TR
6611A
XXXXX
Tape and Reel, 3000
SGM6611B TQFN-2×2.5-11L
-40℃ to +85℃
SGM6611BYTQV11G/TR
6611B
XXXXX
Tape and Reel, 3000
MARKING INFORMATION
NOTE: XXXXX = Date Code and Vendor Code.
Date Code
-
Week
Vendor Code
Date Code - Year
X XXX 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
BOOT Voltage ........................................... -0.3V to V
SW
+ 6V
VIN, SW, FSW, VOUT Voltages ...................... -0.3V to 14.5V
EN, VCC, COMP, ILIM, FB Voltages .................... -0.3V to 6V
Package Thermal Resistance
TQFN-2×2.5-11L, θ
JA
................................................. 60℃/W
Junction Temperature ................................................. +150℃
Storage Temperature Range ........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................ +260℃
ESD Susceptibility
HBM ............................................................................. 1500V
MM ................................................................................. 300V
CDM ............................................................................ 1000V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range ............................................ 2.7V to 12V
Output Voltage Range ...................................... 4.5V to 12.6V
Inductance, Effective Value, L ....................... 0.47μH to 10μH
Input Capacitance, Effective Value, C
IN ............... 10μF (MIN)
Output Capacitance, Effective Value, C
OUT ... 10μF to 1000μF
Operating Junction Temperature Range ...... -40℃ to +125℃
Operating Ambient 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.