uP7704 Datasheet PDF - uPI Semiconductor
Part Number | uP7704 | |
Description | 2A Ultra Low Dropout Linear Regulator | |
Manufacturers | uPI Semiconductor | |
Logo | ||
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2A Ultra Low Dropout Linear Regulator
General Description
Features
The uP7704 is a 2A ultra low dropout linear regulator
specifically designed for motherboard, notebook and graphic
card 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 uP7704
delivers high-current and ultra-low-drop output voltage as
low as 0.8V for applications where VOUT is very close to
VIN.
The uP7704 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 uP7704 is available in PSOP-8 or WDFN3x3-10L
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 1.2V~5.5V VIN
Adjustable Output Voltage, Down to 0.8V
1.5% Initial Accuracy
Excellent Line and Load Regulation
2A Guaranteed Output Current
300mV @ 2A Dropout Voltage
Very Low On-Resistance
150mΩ typical
VOUT Pull Low Resistance when Disabled
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
uP7704U8
uP7704ADDA
Package Type
PSOP-8
WDFN3x3-10L
Remark
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
18
27
GND
36
45
PSOP-8
GND
FB
VOUT
NC
VOUT 1
VOUT 2
VOUT 3
FB 4
POK 5
GND
10 CNTL
9 VIN
8 VIN
7 VIN
6 EN
WDFN3x3-10L
5VCC
R4
10R
VIN
C1
1uF
C2
4.7uF
CNTL
EN
POK
R3
VIN
10K
VOUT
VOUT
R2
12.5K C4
option
FB
NC
R1 C3
10K 10uF
GND
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F00, File Name: uP7704-DS-F0001
1
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uP7704
Absolute Maximum Rating
Control Input Voltage VCNTL (Note 1) ------------------------------------------------------------------------------------------------- -0.3V to +7V
Power Input Voltage VIN-------------------------------------------------------------------------------------------------------------------- -0.3V to +7V
Other Pins --------------------------------------------------------------------------------------------------------------- -0.3V to (VCNTL + 0.3V)
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)
PSOP-8 θJA ---------------------------------------------------------------------------------------------------------------------------------- 52°C/W
PSOP-8 θJC ---------------------------------------------------------------------------------------------------------------------------------- 5°C/W
WDFN3x3-10L θJA -------------------------------------------------------------------------------------------------------------------------- 60°C/W
WDFN3x3-10L θJC ------------------------------------------------------------------------------------------------------------------------- 5°C/W
Power Dissipation, PD @ TA = 25°C
PSOP-8 ------------------------------------------------------------------------------------------------------------------------------------------- 1.9W
WDFN3x3-10L θJA -------------------------------------------------------------------------------------------------------------------------- 1.67W
Recommended Operation Conditions
Operating Junction Temperature Range (Note 4) ------------------------------------------------------------------------ -40°C to +125°C
Operating Ambient Temperature Range -------------------------------------------------------------------------------------- -40°C to +85°C
Supply Input Voltage, VCNTL ------------------------------------------------------------------------------------------------------------ +3.0V to +5.5V
Power Input Voltage, VIN ------------------------------------------------------------------------------------------------------------ +1.0V to VCNTL
(VCNTL = 5V, TA = 25OC, unless otherwise specified)
Electrical Characteristics
Parameter
Symbol Test Conditions
Min Typ Max Units
Supply Input Voltage
Control Input Voltage
POR Threshold
POR Hysteresis
Power Input Voltage
Control Input Current in
Shutdown
Control Input Current
Quiescent Current
Feedback Voltage
VCNTL
V
CNTLRTH
VCNTLHYS
VIN
VOUT = VREF
VOUT = VREF
ICNTL_SD VCNTL = VIN = 5.0V, IOUT = 0A, VEN = 0V
ICNTL
IQ
VCNTL = VIN = VEN = 5.0V, IOUT = 0A, VOUT = VREF
VCNTL = VIN = VEN = 5.0V, IOUT = 0A, VOUT = VREF
2.9 --
6
2.5 2.7 2.9
V
V
0.1 0.2 --
1.0 -- VCNTL
V
V
-- 20 30 uA
-- 0.3 0.6 mA
-- 0.3 0.6 mA
Reference Voltage
Feedback Input Current
VIN Line Regulation
VCNTL Line Regulation
VREF
VCNTL = VIN = VEN = 5.0V, IOUT = 0A. VOUT = VREF
IFB
VREF(LINE)
1.2V < VIN < 5.0V, VCNTL = VEN = 5.0V, IOUT = 0A. VOUT =
VREF
VREF(CNTL) 3.0V < VCNTL < 5.0V,VIN = 1.2V, IOUT = 0A. VOUT = VREF
0.788 0.8 0.812
-- 20 --
V
nA
-- 0.01 0.1 %/V
-- 0.01 0.1 %/V
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F00, File Name: uP7704-DS-F0001
5
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Information | Total 13 Pages | |
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