UP7706 Ver la hoja de datos (PDF) - Unspecified
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UP7706 Datasheet PDF : 12 Pages
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uP7706
3A Ultra Low Dropout Linear Regulator
General Description
Features
The uP7706 is a 3A ultra low dropout linear regulator
specifically designed for motherboard and notebook
applications. This device works with dual supplies, a control
input for the control circuitry and a power input as low as
1.2V for providing current to output. The uP7706 delivers
high-current and ultra-low-drop output voltage as low as
0.8V for applications where VOUT is very close to VIN.
The uP7706 features comprehensive control and protection
functions: a power on reset (POR) circuit for monitoring
both control and power inputs for proper operation; an EN
input for enabling or disabling the device, a power OK with
time delay for indicating the output voltage status, a
foldback current limit function, and a thermal shutdown
function.
The uP7706 is available in PSOP-8 or VDFN6x5-8L
packages with very low thermal resistance.
Applications
Desktop PCs, Notebooks, and Workstations
Graphic Cards
Low Voltage Logic Supplies
Microprocessor and Chipset Supplies
Split Plane Microprocessor Supplies
Advanced Graphics Cards Supplies
SoundCards and Auxiliary Power Supplies
SMPS Post Regulators
Works with 1.2~5.5V VIN
Adjustable Output Voltage, Down to 0.8V
1.5% Initial Accuracy
Excellent Line and Load Regulation
3A Guaranteed Output Current
200mV @ 2A Dropout Voltage
Very Low On-Resistance
100mΩ typical
VOUT Pull Low Resistance when Disabled
Low Reverse Leakage (Output to Input )
VOUT Power OK Signal
Fast Transient Response
Low External Component Count
Low Cost and Easy to Use
Enable Pin
Over Current and Over Temperature Protection
Ordering Information
Order Number Package Type
Remark
uP7706U8
PSOP-8
uP7706ADC8 VDFN6x5 - 8L
Note: uPI products are compatible with the current IPC/
JEDEC J-STD-020 and RoHS requirements. They are
100% matte tin (Sn) plating and suitable for use in SnPb
or Pb-free soldering processes.
Pin Configuration & Typical Application Circuit
POK
EN
VIN
CNTL
1
8
2
7
GND
3
6
4
5
PSOP-8
GND
FB
VOUT
NC
POK 1
EN 2
VIN 3
CNTL 4
GND
8 GND
7 FB
6 VOUT
5 NC
DFN6x5-8L
5VCC
C1
0.1uF
VIN
C2
22uF
CNTL
4
EN
2
POK
1
VIN
3
VOUT
6
FB
7
8
GND
R3
10K
R2
12.5K
R1
10K
VOUT
C4
option
C3
100uF
uPI Semiconductor Corp., http://www.upi-semi.com
1
Rev. F00, File Name: uP7706-DS-F0000
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