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PDF uP1722P Data sheet ( Hoja de datos )
| Número de pieza | uP1722P | |
| Descripción | High-Efficiency Synchronous-Rectified Buck Converter | |
| Fabricantes | uPI Semiconductor | |
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Hay una vista previa y un enlace de descarga de uP1722P (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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uP1722P/Q
1.5MHz, 1.3A, High-Efficiency
Synchronous-Rectified Buck Converter
General Description
Features
The uP1722 is a high efficiency synchronous-rectified buck 2.6V to 5.5V Input Voltage Range
converter with internal power switches. Fixed 1.5MHz PWM 1.3A Peak Output Current
operation allows possible smallest output ripple and
external component size. With high conversion efficiency Accurate Reference with +/- 2% Accuracy
and small package, the uP1722 is ideally suitable for
0.6V (uP1722P)
portable devices and USB/PCIE-based interface cards
0.5V (uP1722Q)
where PCB area is especially concerned.
Up to 95% Conversion Efficiency
With internal low RDS(ON) switches, the uP1722 is capable
of delivering 1.3A peak output current over a wide input
Typical Quiescent Current: 60uA
voltage range from 2.6V to 5.5V. The output voltage is Integrated Low RDS(ON) Upper and Lower MOSFET
adjustable from 0.6V/0.5V (uP1722P/uP1722Q) to VIN by
Switches: 300mΩ and 250mΩ
a voltage divider. Other features include internal soft-start, Current Mode PWM Operation
chip enable, under-voltage, over-temperature and over-
current protections. The uP1722 is available in space-saving
Fixed Frequency: 1.5MHz
WDFN2x2-6L and TSOT23-5L packages with fixed or 100% Maximum Duty Cycle for Lowest Dropout
adjustable output voltage options.
Internal Soft-Start
Ordering Information Under-Voltage Protection
Order Number
uP1722PMT5-XX
uP1722QMT5-XX
Package
TSOT23-5L
TopMarking
N45PXX
N45QXX
Over-Temperature and Over-Current Protection
Space-Saving WDFN2x2-6L and TSOT23-5L
packages
RoHS Compliant and Halogen Free
uP1722PDE6-XX WDFN2x2-6L
XX: Output Voltage
Applications
00: adjustable
Battery-Powered Portable Devices
10: 1.0V; 12: 1.2V; 15: 1.5V; 18: 1.8V;
25: 2.5V; 33: 3.3V
MP3 Players
Digital Still Cameras
Note: uPI products are compatible with the current IPC/
JEDEC J-STD-020 requirement. They are halogen-free,
Wireless and DSL Modems
RoHS compliant and 100% matte tin (Sn) plating that are
Personal Information Appliances
suitable for use in SnPb or Pb-free soldering processes.
Cellular Telephones
802.11 WLAN Power Supplies
FPGA/ASIC Power Supplies
Dynamically Adjustable Power Supply for
CDMA/WCSMA Power Amplifiers
USB-Based xDSL Modems and Other Network
Interface Cards
uP1722PQ-DS-P0000, May 2012
www.upi-semi.com
1
1 page  
uP1722P/Q
Absolute Maximum Rating
(Note 1)
Supply Input Voltage, VIN ----------------------------------------------------------------------------------------------- -0.3V to +6V
LX Pin Voltage
DC ------------------------------------------------------------------------------------------------------------------------------ -0.3V to +(VIN +0.3V)
< 30ns --------------------------------------------------------------------------------------------------------------------------------- -3.5V to +7V
Other Pins ---------------------------------------------------------------------------------------------------------------------------------- -0.3V to +6V
Storage Temperature Range ---------------------------------------------------------------------------------------------------- -65OC to +150OC
Junction Temperature ------------------------------------------------------------------------------------------------------------------------------------ 150OC
Lead Temperature (Soldering, 10 sec) ------------------------------------------------------------------------------------------------------------ 260OC
ESD Rating (Note 2)
HBM (Human Body Mode) --------------------------------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ----------------------------------------------------------------------------------------------------------------------------- 200V
Thermal Information
Package Thermal Resistance (Note 3)
TSOT23-5L θJA --------------------------------------------------------------------------------------------------------------------------- 250OC/W
TSOT23-5L θJC ---------------------------------------------------------------------------------------------------------------------------- 100OC/W
WDFN2x2-6L θJA ------------------------------------------------------------------------------------------------------------------------- 155OC/W
WDFN2x2-6L θJC ----------------------------------------------------------------------------------------------------------------------- 20OC/W
Power Dissipation, PD @ TA = 25OC
TSOT23-5L ----------------------------------------------------------------------------------------------------------------------------------------- 0.4W
WDFN2x2-6L --------------------------------------------------------------------------------------------------------------------------------------- 0.6W
Recommended Operation Conditions
(Note 4)
Operating Junction Temperature Range ------------------------------------------------------------------------ -40OC to +125OC
Operating Ambient Temperature Range -------------------------------------------------------------------------------------- -40OC to +85OC
Supply Input Voltage, VIN -------------------------------------------------------------------------------------------------------- +2.6V to +5.5V
Electrical Characteristics
(V = 3.3V, T = 25OC, unless otherwise specified)
IN A
Parameter
Symbol
Test Conditions
Supply Current
Input Under Voltage Lockout
Quiescent Current
VUVLO
IQ
VIN rising
V falling
IN
VEN = 3.3V, VFB > VREF, IOUT = 0mA, (No
switching)
Shutdown Current
Reference
ISHDN VEN = 0V
Soft-Start Time
Guaranteed by design
Reference Voltage
Output Voltage Line
Regulation
VREF
uP1722P IOUT = 10mA
uP1722Q IOUT = 10mA
ΔVOUT VIN = 2.6V to 5.5V
Output Voltage Load
Regulation
ΔVOUT IOUT = 10mA to 1A
Min Typ Max Units
2.6 --
-- --
--
2
-- 60 100
-- 0.01 1
V
uA
uA
-- 250 --
0.588 0.6 0.612
0.490 0.5 0.510
us
V
-- 0.04 0.4 %/V
-- 0.5 -- %/A
uP1722PQ-DS-P0000, May 2012
www.upi-semi.com
5
5 Page 
uP1722P/Q
1.90 - 2.10
WDFN2x2-6L Package
0.30 - 0.40
4
1.15 - 1.50
Package Information
6
0.20 REF
3
0.65 BSC
1.15- 1.50
1
0.20 - 0.30
0.70 - 0.80
0.00 - 0.05
0.65 BSC
0.20 - 0.40
Recommended Solder Pitch and Dimensions
Note
1.Package Outline Unit Description:
BSC: Basic. Represents theoretical exact dimension or dimension target
MIN: Minimum dimension specified.
MAX: Maximum dimension specified.
REF: Reference. Represents dimension for reference use only. This value is not a device specification.
TYP. Typical. Provided as a general value. This value is not a device specification.
2.Dimensions in Millimeters.
3.Drawing not to scale.
4.These dimensions do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15mm.
uP1722PQ-DS-P0000, May 2012
www.upi-semi.com
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet uP1722P.PDF ] | |
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