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Numéro de référence | uP6103 | ||
Description | 5V/12V Synchronous-Rectified Buck Controller | ||
Fabricant | uPI Semiconductor | ||
Logo | |||
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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Pages | Pages 15 | ||
Télécharger | [ uP6103 ] |
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