SGM6601
Low-Power DC-DC
Step-Up Converter
GENERAL DESCRIPTION
The SGM6601 is a high-frequency boost converter
dedicated for small to medium LCD bias supply and white
LED backlight supplies. The device is ideal to generate
output voltages up to 38V from a dual cell NiMH/NiCd or
a single cell Li-ion battery. The part can also be used to
generate standard 3.3V/5V to 12V power conversions.
The SGM6601 operates with a switching frequency up to
1MHz. This allows the use of small external components
using ceramic as well as tantalum output capacitors.
Together with the small package, the SGM6601 gives a
very small overall solution size. The SGM6601 has an
internal 400mA switch current limit, offering low output
voltage ripple and allows the use of a small form factor
inductor for low power applications. The low quiescent
current (20μA TYP) together with an optimized control
scheme, allows device operation at very high efficiencies
over the entire load current range.
The SGM6601 is available in TDFN-2×2-6L and
TSOT-23-5 packages. It operates over an ambient
temperature range of -40℃ to +85℃.
FEATURES
Input Voltage Range: 1.8V to 5.5V
Adjustable Output Voltage Range up to 38V
400mA Internal Switch Current
Up to 1MHz Switching Frequency
20μA Typical No-Load Quiescent Current
0.1μA Typical Shutdown Current
Internal Soft-Start Function
-40℃ to +85℃ Operating Temperature Range
Available in Green TSOT-23-5 and TDFN-2×2-6L
Packages
APPLICATIONS
LCD Bias Supply
White-LED Supply for LCD Backlights
Digital Still Camera
PDAs, Organizers, and Handheld PCs
Cellular Phones
Internet Audio Player
Standard 3.3V/5V to 12V Conversion
TYPICAL APPLICATION
VIN
GND
EN
L1
10µH
SW
R1
R2
FB
D1
C
FF
C
OUT
1µF
C
IN
4.7µF
SGM6601
V
IN
1.8V to 5.5V
V
OUT
V
IN
to 38V
10kΩ
REV. A. 1
SG Micro Corp
www.sg-micro.com
SGM6601 Low-Power DC-DC Step-Up Converter
2
SG Micro Corp
www.sg-micro.com
PACKAGE/ORDERING INFORMATION
MODEL
PIN-
PACKAGE
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKAGE
OPTION
TDFN-2×2-6L
-40℃ to +85℃
SGM6601YTDI6G/TR
6601
XXXX
Tape and Reel, 3000
SGM6601
TSOT-23-5
-40℃ to +85℃
SGM6601YTN5G/TR SG4XX
Tape and Reel, 3000
NOTE: XXXX = Date Code. XX = Date Code.
MARKING INFORMATION
For example: SG4CA (2012, January)
SG4 X X
Date code - Year ("A" = 2010, "B" = 2011 …)
Date code - Month ("A" = Jan. "B" = Feb. … "L" = Dec.)
Chip I.D.
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage................................................ -0.3V to 6V
EN and FB Pin Voltages.......................................... -0.3V to V
IN
SW Switch Voltage............................................................... 40V
Operating Temperature Range............................-40℃ to +85℃
Junction Temperature........................................................150℃
Storage Temperature Range..............................-65℃ to +150℃
Package Thermal Resistance
TDFN-2×2-6L, θ
JA
……………….…….…………….…….124℃/W
TSOT-23-5, θ
JA
……………….…………………...……....250℃/W
Lead Temperature (Soldering, 10s) ..................................260℃
ESD Susceptibility
HBM..................................................................................4000V
MM..................................................................................... 250V
NOTE:
Stresses beyond those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. These
are stress ratings only, and functional operation of the device at
these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
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.
SGMICRO reserves the right to make any change in circuit
design, specification or other related things if necessary without
notice at any time. Please contact SGMICRO sales office to get
the latest datasheet.