SGM6611C
12.6V, 7A Fully-Integrated
Synchronous Boost Converter
SG Micro Corp
www.sg-micro.com
MARCH 2021 – REV. A. 3
GENERAL DESCRIPTION
The SGM6611C is a fully-integrated synchronous boost
converter with a 15mΩ main power switch and a 27mΩ
rectifier switch. The device provides a high efficiency
and small size power solution for portable equipment.
The SGM6611C features wide input voltage range from
2.7V to 12V to support applications powered with
single-cell or two-cell Li-Ion/Polymer batteries. The
SGM6611C has 7A continuous switch current capability
and is capable of providing an output voltage up to
12.6V.
The SGM6611C uses peak current control topology to
regulate the output voltage. In moderate to heavy load
condition, the SGM6611C works in the Pulse Width
Modulation (PWM) mode. In light load condition, the
SGM6611C works in the Pulse Frequency Modulation
(PFM) mode to improve the efficiency. The SGM6611C
also implements a built-in 4ms soft-start function and an
adjustable peak switch current limit function. In addition,
the device provides 13.2V output over-voltage protection,
cycle-by-cycle over-current protection, and thermal
shutdown protection.
The SGM6611C is available in a Green TQFN-2×2.5-
11L package.
FEATURES
● Input Voltage Range: 2.7V to 12V
● Output Voltage Range: 4.5V to 12.6V
● Up to 90% Efficiency at V
IN
= 3.3V, V
OUT
= 9V,
and I
OUT
= 1.5A
● Resistor-Programmable Peak Current Limit Up to
9.5A for High Pulse Current
● Fixed Switching Frequency: 1.1MHz (PWM Mode)
● 4ms Built-In Soft-Start Time
● PFM Operation Mode at Light Load
● Internal Output Over-Voltage Protection at 13.2V
● Cycle-by-Cycle Over-Current Protection
● Thermal Shutdown
● Available in a Green TQFN-2×2.5-11L Package
APPLICATIONS
Bluetooth Speaker
Quick Charge Power Bank
Portable POS Terminal
E-Cigarette
TYPICAL APPLICATION
V
IN
C
1
(C
IN
)
L
C
4
OFF
ON
C
3
SW
BOOT
VIN
EN
VCC
VOUT
GND
FB
COMP
ILIM
C
2
(C
OUT
)
V
OUT
R
1
R
2
C
6
R
4
(R
ILIM
)
R
5
C
5
SGM6611C
Figure 1. Typical Application Circuit
12.6V, 7A Fully-Integrated
SGM6611C Synchronous Boost Converter
2
MARCH 2021
SG Micro Corp
www.sg-micro.com
PACKAGE/ORDERING INFORMATION
MODEL
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
SGM6611C TQFN-2×2.5-11L
-40℃ to +85℃
SGM6611CYTQV11G/TR
6611C
XXXXX
Tape and Reel, 3000
MARKING INFORMATION
NOTE: XXXXX = Date Code, Trace Code and Vendor Code.
Trace Code
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, 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
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 2.2μH
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 by ESD if you don’t
pay attention to ESD protection. 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 very small parametric changes could cause the
device not to meet its published specifications.
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit
design, or specifications
without prior notice.