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uP6111A PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 uP6111A
部品説明 Single Phase PWM Controller
メーカ uPI Semiconductor
ロゴ uPI Semiconductor ロゴ 



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uP6111A Datasheet, uP6111A PDF,ピン配置, 機能
uP6111A/B
Single Phase PWM Controller
for Mobile Applications
General Description
Features
The uP6111A/B is a high performance synchronous-rectified
buck controller specifically designed for POL voltage
regulation in notebook PC application. The controller
operates with 5V bias voltage and converts 2V~26V input
voltage to 0.75V~5.5V output voltage.
The uP6111A/B adopts constant-on-time PWM scheme
that features easy-to-use, low external component count,
fast transient response and quasi constant frequency
operation over the operation range. Selectable Forced
Continuous Conduction Mode (FCCM) or Power Saving
Mode (PSM) enables the flexibility for low noise operation
or high efficiency conversion over wide output current range.
Lossless current sensing by RDS(ON) of lower switch
achieves programmable over current protection. Other
features include internal soft start, integrated bootstrap diode
and thermal shutdown. The uP6111A is available in
WQFN3x3 -16L and WQFN4x4-16L packages. The
uP6111B is available in VQFN3.5x3.5- 14L and TSSOP-
14L packages.
Applications
Power Supplies for Microprocessors or
Subsystem Power Supplies
Cable Modems, Set Top Boxes, and DSL
Modems
Industrial Power Supplies; General Purpose
Supplies
2V to 26V Input DC-DC Regulators
Low-Voltage Distributed Power Supplies
Wide Input Voltage Range 2V ~ 26V
Wide Output Voltage Range 0.75V ~ 5.5V
1.0% Initial Accuracy
Constant On Time PWM
Quasi Constant Switching Frequency
Adjustable Frequency from 200kHz to
500kHz
Ultra Fast Transient Response
Integrated Bootstrap Diode
Integrated MOSFET Drivers with Shoot-Through
Protection
Configurable Forced Continuous Current Mode
or Power Saving Mode
Lossless, Programmable Overcurrent Protection
Use Low-Side MOSFET RDS(ON)
Internal Soft Start
Over Voltage and Under Voltage Protection
Power OK Indication
WQFN4x4 - 16L, WQFN3x3 - 16L,
VQFN3.5X3.5 - 14L, or TSSOP - 14L Packages
RoHS Compliant and 100% Lead Free
Ordering Information
Order Number Package Type
uP6111AQED WQFN4x4 - 16L
uP6111AQDD WQFN3x3 - 16L
uP6111BQHC VQFN3.5x3.5 - 14L
uP6111BTAC TSSOP - 14L
Remark
Refer to IMAX and
TON pin description
on P. 5.
Note: 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.
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F01, File Name: uP6111A/B-DS-F0101
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