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SGM66055A Datasheet Preview

SGM66055A Datasheet

Fixed Output Synchronous Tiny Step-Up Converter

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SGM66055A
2.2MHz, Fixed Output Synchronous
Tiny Step-Up Converter with a 3A Switch
GENERAL DESCRIPTION
The SGM66055A is an internally compensated, 2.2MHz
switching frequency, current mode, synchronous step-
up switching regulator. Even below the minimum
system battery voltage, the device maintains the output
voltage regulation for a minimum output load current of
0.7A. This device turns into power-save 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.
In addition, the SGM66055A device can also support
the pass-through mode by pulling EN to low. In this
mode, the output voltage follows the input voltage with
a voltage drop by the resistance of the inductor and
high-side FET.
The SGM66055A-5.0 and SGM66055A-5.4 are preset
for outputting 5.0V and 5.4V.
The device is available in a Green WLCSP-1.21×1.21-
9B package and operates over an ambient temperature
range of -40to +85.
FEATURES
93% Efficient Synchronous Boost Converter
Device Quiescent Current: 23µA (TYP)
Operating Input Voltage Range: 2.5V to 4.5V
Fixed Output Voltages: 5.0V and 5.4V
Output Voltage Clamping: 5.7V
Power-Save Mode for Improved Efficiency at
Low Output Power
Pass-through Mode by Pulling EN Low
Low Reverse Leakage Current when VOUT > VIN
Over-Temperature Protection
Available in a Green WLCSP-1.21×1.21-9B Package
-40to +85Operating Temperature Range
APPLICATIONS
Class-D Audio Amplifier and USB OTG Supply
Boost for Low-Voltage Li-Ion Batteries
Smart Phones, Tablets, Portable Devices, Wearables
TYPICAL APPLICATION
Battery +
VIN
CIN
4.7μF
VOUT
SGM66055A
SW
PGND
EN
AGND
COUT
10μF
Figure 1. Typical Application Circuit
SYSTEM
LOAD
SG Micro Corp
www.sg-micro.com
MAY 2019 – REV. A. 2




SG Micro

SGM66055A Datasheet Preview

SGM66055A Datasheet

Fixed Output Synchronous Tiny Step-Up Converter

No Preview Available !

SGM66055A
2.2MHz, Fixed Output Synchronous
Tiny Step-Up Converter with a 3A Switch
PACKAGE/ORDERING INFORMATION
MODEL
VOUT
(V)
5.0
SGM66055A
5.4
PACKAGE
DESCRIPTION
WLCSP-1.21×1.21-9B
WLCSP-1.21×1.21-9B
SPECIFIED
TEMPERATURE
RANGE
-40to +85
-40to +85
ORDERING
NUMBER
SGM66055A-5.0YG/TR
SGM66055A-5.4YG/TR
PACKAGE
MARKING
GP2
XXXX
GP3
XXXX
PACKING
OPTION
Tape and Reel, 3000
Tape and Reel, 3000
MARKING INFORMATION
NOTE: XXXX = Date Code.
Y Y Y Serial Number
XXXX
Date Code - Week
Date Code - Year
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
Voltage on VIN Pin ........................................... -0.3V to 5.5V
Voltage on VOUT Pin ........................................................ 6V
SW Node (DC)..................................................... -0.3V to 6V
SW Node (Transient: 10ns, 3MHz) ......................... -1V to 8V
Voltage on Other Pins.......................................-0.3V to 6V (1)
Package Thermal Resistance
WLCSP-1.21×1.21-9B, θJA. .......................................90/W
Junction Temperature.................................................+150
Storage Temperature Range ....................... -65to +150
Lead Temperature (Soldering, 10s) ............................+260
ESD Susceptibility
HBM............................................................................. 4000V
MM................................................................................. 400V
CDM ............................................................................ 1000V
NOTE: 1. Lesser of 6V or VIN + 0.3V.
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.
SG Micro Corp
www.sg-micro.com
MAY 2019
2



Part Number SGM66055A
Description Fixed Output Synchronous Tiny Step-Up Converter
Maker SG Micro
Total Page 3 Pages
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