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uP6103 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 uP6103
部品説明 5V/12V Synchronous-Rectified Buck Controller
メーカ uPI Semiconductor
ロゴ uPI Semiconductor ロゴ 



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uP6103 Datasheet, uP6103 PDF,ピン配置, 機能
uP6103
5V/12V Synchronous-Rectified
Buck Controller with Reference Input
General Description
Features
The uP6103 is a compact synchronous-rectified buck
controller specifically designed to operate from 5V or 12V
supply voltage and to deliver high quality output voltage as
low as 0.4V. These SOP-8 and PSOP-8 devices operate at
fixed 200/300 kHz frequency and provide an optimal level
of integration to reduce size and cost of the power supply.
The uP6103 supports both tracking mode and stand-alone
mode operation. The output voltage is tightly regulated to
the external reference voltage from 0.4V to 3.0V at tracking
mode or to internal 0.6V reference at stand-alone mode.
This controller integrates internal MOSFET drivers that
support 12V+12V bootstrapped voltage for high efficiency
power conversion. The bootstrap diode is built-in to simplify
the circuit design and minimize external part count.
Other features include internal softstart, undervoltage
protection, overcurrent protection and shutdown function.
With aforementioned functions, this part provides
customers a compact, high efficiency, well-protected and
cost-effective solutions. This part is available in SOP-8 and
PSOP-8 packages.
Ordering Information
Order Number Package Top Marking
Remark
uP6103S8 SOP-8L uP6103S8
200kHz
uP6103AS8 SOP-8L uP6103AS8
300kHz
uP6103ASU8 PSOP-8L uP6103ASU8
300kHz
Note: uPI products are compatible with the current IPC/
JEDEC J-STD-020 requirements. They are halogen-free,
RoHS compliant and 100% matte tin (Sn) plating that are
suitable for use in SnPb or Pb-free soldering processes.
† Operate from 5V or 12V Supply Voltage
† 3.3V to 12V VIN Input Range
† 0.6 VREF with 1.5% Accuracy
† Output Range from VREF to 80% of VIN
† Support Tracking Mode and Stand Alone Mode
Operation
† Simple Single-Loop Control Design
† Voltage-Mode PWM Control
† Fast Transient Response
† High-Bandwidth Error Amplifier
† 0% to 80% Duty Cycle
† Lossless, Programmable Overcurrent Protection
† Uses Lower MOSFET RDS(ON)
† 200/300 kHz Fixed Frequency Oscillator
† Internal Soft Start
† Integrated Bootstrap Diode
† RoHS Compliant and Halogen Free
Applications
† Power Supplies for Microprocessors or
Subsystem Power Supplies
† Cable Modems, Set Top Boxes, and xDSL
Modems
† Industrial Power Supplies; General Purpose
Supplies
† 5V or 12V Input DC-DC Regulators
† Low Voltage Distributed Power Supplies
Pin Configuration & Typical Application Circuit
BOOT
UGATE
GND
LGATE
18
27
36
45
SOP-8
PHASE
REFIN
FB
VCC
BOOT
UGATE
GND
LGATE
18
27
GND
36
45
PSOP-8
PHASE
REFIN
FB
VCC
Reference
Input
Disable
Enable
REFIN
7
VCC
5
BOOT
1
UGATE
2
8 PHASE
FB
6
Option
4 LGATE
3
GND
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F00, File Name: uP6103-DS-F0000
VIN
VOUT
1

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