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TPS2505 Datasheet(PDF) 6 Page - Texas Instruments

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No. de pieza TPS2505
Descripción Electrónicos  INTEGRATED DUAL USB SWITCHES, BOOST CONVERTER AND LDO
Download  28 Pages
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS2505 Datasheet(HTML) 6 Page - Texas Instruments

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PGND
IN
EN
GND
ILIM1
LDOIN
ENLDO
/FAULT2
ENUSB2
USB2
16
20
6
15
11
1
5
PAD
10
PGND
IN
EN
GND
ILIM1
LDOIN
ENLDO
/FAULT2
ENUSB2
USB2
16
20
6
15
11
1
5
PAD
10
16
20
6
15
11
1
5
PAD
10
RGW PACKAGE
(TOP VIEW)
TPS2505
SPAS093A – DECEMBER 2009 – REVISED FEBRUARY 2010
www.ti.com
TERMINAL FUNCTIONS
TERMINAL
TYPE(1)
DESCRIPTION
NAME
NO.
Source connection for the internal low-side boost converter power switch. Connect to GND
PGND
1
P
with a low impedance connection to the input and output capacitors.
IN
2
I
Input supply voltage for boost converter.
EN
3
I
Enable input for boost converter. Tie to IN to enable.
GND
4
P
Control / logic ground. Must be tied to PGND close to the IC externally.
ILIM1
5
I
Program the nominal USB1 switch current-limit threshold with a resistor to GND.
ILIM2
6
I
Program the nominal USB2 switch current-limit threshold with a resistor to GND.
/FAULT1
7
O
Active low USB1 fault indicator (open drain).
ENUSB1
8
I
Enable input for the USB1 switch. Tie to IN or AUX to enable.
RESET
9
O
Active low LDO output good indicator (open drain).
LDOOUT
10
O
Fixed 3.3-V LDO output. Connect a low-ESR ceramic capacitor from LDOOUT to GND.
LDOIN
11
I
Input supply voltage for LDO. Connect to AUX.
ENLDO
12
I
Enable input for the LDO. Tie to AUX to enable.
/FAULT2
13
O
Active low USB2 fault indicator (open drain).
ENUSB2
14
I
Enable input for the USB2 switch. Tie to IN or AUX to enable.
USB2
15
O
Output of the USB2 power switch. Connect to the USB2 port.
USB1
16
O
Output of the USB1 power switch. Connect to the USB1 port.
USB1
17
O
Output of the USB1 power switch. Connect to the USB1 port.
Fixed 5.1-V boost converter output. Connect a low-ESR ceramic capacitor from AUX to
AUX
18
O
PGND.
Boost and rectifying switch input. This node is switched between PGND and AUX. Connect
SW
19
P
the boost inductor from IN to SW.
Boost and rectifying switch input. This node is switched between PGND and AUX. Connect
SW
20
P
the boost inductor from IN to SW.
THERMAL
Internally connected to PGND. Must be soldered to board ground for thermal dissipation.
PAD
(1)
I = Input; O = Output; P = Power
6
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Product Folder Link(s): TPS2505


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