uP1722P/Q
1.5MHz, 1.3A, High-Efficiency
Synchronous-Rectified Buck Converter
Features
General Description
The uP1722 is a high efficiency synchronous-rectified buck
converter with internal power switches. Fixed 1.5MHz PWM
operation allows possible smallest output ripple and
external component size. With high conversion efficiency
and small package, the uP1722 is ideally suitable for
portable devices and USB/PCIE-based interface cards
where PCB area is especially concerned.
2.6V to 5.5V Input Voltage Range
1.3A Peak Output Current
Accurate Reference with +/- 2% Accuracy
0.6V (uP1722P)
0.5V (uP1722Q)
Up to 95% Conversion Efficiency
Typical Quiescent Current: 60uA
With internal low RDS(ON) switches, the uP1722 is capable
of delivering 1.3A peak output current over a wide input
voltage range from 2.6V to 5.5V. The output voltage is
adjustable from 0.6V/0.5V (uP1722P/uP1722Q) to VIN by
a voltage divider. Other features include internal soft-start,
chip enable, under-voltage, over-temperature and over-
current protections. The uP1722 is available in space-saving
WDFN2x2-6L, TSOT23-5L and SOT23-5L packages with
fixed or adjustable output voltage options.
Integrated Low RDS(ON) Upper and Lower
MOSFET Switches: 300mΩ and 250mΩ
Current Mode PWM Operation
Fixed Frequency: 1.5MHz
100% Maximum Duty Cycle for Lowest Dropout
Internal Soft-Start
Under-Voltage Protection
Ordering Information
Over-Temperature and Over-Current Protection
Order Number
uP1722PMT5-XX
uP1722QMT5-XX
uP1722PMA5-XX
uP1722QMA5-XX
Package
TopMarking
N45PXX
N45QXX
N45PXX
N45QXX
DF
Space-Saving WDFN2x2-6L, TSOT23-5L and
SOT23-5L packages
TSOT23-5L
RoHS Compliant and Halogen Free
SOT23-5L
Applications
Battery-Powered Portable Devices
uP1722PDE6-00 WDFN2x2-6L
MP3 Players
XX: Output Voltage
00: adjustable
Digital Still Cameras
10: 1.0V; 12: 1.2V; 15: 1.5V; 18: 1.8V;
25: 2.5V; 33: 3.3V
Wireless and DSL Modems
Personal Information Appliances
Cellular Telephones
Status:
In Production: uP1722PMA5-00, uP1722PMT5-00
Others: Please check the sample/production availability
with uPI representatives.
802.11 WLAN Power Supplies
FPGA/ASIC Power Supplies
Note:
Dynamically Adjustable Power Supply for
CDMA/WCSMA Power Amplifiers
(1) Please check the sample/production availability with
uPI representatives.
(2) uPI products are compatible with the current IPC/JEDEC
J-STD-020 requirement. They are halogen-free, RoHS
compliant and 100% matte tin (Sn) plating that are suitable
for use in SnPb or Pb-free soldering processes.
USB-Based xDSL Modems and Other Network
Interface Cards
uP1722P/Q-DS-F0002, Sep. 2016
www.upi-semi.com
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