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UR5516L-SH2-R Datasheet(PDF) 2 Page - Unisonic Technologies

Part # UR5516L-SH2-R
Description  3A BUS TERMINATION REGULATOR
Download  9 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UR5516L-SH2-R Datasheet(HTML) 2 Page - Unisonic Technologies

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UR5516
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
2 of 9
www.unisonic.com.tw
QW-R101-015,B
PIN CONFIGURATION
VIN
GND
VREF
VOUT
VCNTL
VCNTL
VCNTL
VCNTL
8
7
6
5
4
3
2
1
SOP-8
VIN
GND
VREF
VOUT
NC
VCNTL
NC
NC
8
7
6
5
4
3
2
1
HSOP-8
: Thermal Pad (Connected to GND plane for better heat dissipation)
NC: No Connection
TAB is VCNTL
1
2
3
4
5
VOUT
VREF
VCNTL
GND
VIN
TO-252-5/TO-263-5
PIN DESCRIPTION
PIN NAME
I/O
DESCRIPTION
VIN
I
Main power input pin. Connect this pin to a voltage source and an input capacitor. The
UTC UR5516 sources current to VOUT pin by controlling the upper NPN pass transistor,
providing a current path from VIN pin.
GND
O
Power and signal ground. Connect this pin to system ground plane with shortest traces.
The UTC UR5516 sinks current from VOUT pin by controlling the lower NPN pass
transistor, providing a current path to GND pin. This pin is also the ground path for
internal control circuitry.
VCNTL
I
Power input pin for internal control circuitry. Connect this pin to a voltage source,
providing a bias for the internal control circuitry. A bypass capacitor is usually connected
near this pin.
VREF
I
Reference voltage input and active-low shutdown control pin. Apply a voltage to this pin
as a reference voltage for the UTC UR5516. Connect this pin to a resistor divider,
between VIN and GND, and a capacitor for soft-start and filtering noise purposes.
Applying and holding this pin low by an open-drain transistor to shut down the output.
VOUT
O
Output pin of the regulator. Connect this pin to load. Output capacitors connected this pin
improves stability and transient response. The output voltage tracks the reference
voltage and is capable of sourcing or sinking current up to 3A.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
SOP-8
160
HSOP-8
80
TO-252-5
80
Thermal Resistance
TO-263-5
θJA
50
°C/W


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