Dual Switch. TPS2149 Datasheet

TPS2149 Datasheet PDF, Equivalent


Part Number

TPS2149

Description

3.3-V LDO and Dual Switch

Manufacture

etcTI

Total Page 23 Pages
PDF Download
Download TPS2149 Datasheet PDF


TPS2149 Datasheet
TPS2149
TPS2159
SLVS401 − AUGUST 2001
3.3ĆV LDO AND DUAL SWITCH
FOR USB BUSĆPOWERED HUB POWER MANAGEMENT
FEATURES
D Complete Power Management Solution for
USB Bus-Powered Hubs
D 3.3-V 200 mA Low-Dropout Voltage Regulator
D Two 5-V 340-m(Typ) High-Side MOSFETs
D Independent Thermal- and Short-Circuit
Protection for LDO and Each Switch
D Overcurrent Indicator With Transient Filter
D 2.9-V to 5.5-V Operating Range
D CMOS- and TTL-Compatible Enable Inputs
D 75-µA (Typ) Supply Current
D Available in 8-Pin MSOP (PowerPAD)
D −40°C to 85°C Ambient Temperature Range
APPLICATIONS
D USB Bus-Powered Hubs
− Keyboards
− Monitors
− Hub Boxes
DESCRIPTION
The TPS2149 incorporates two power distribution
switches and an LDO in one small package, providing
a USB bus-powered hub power management solution
that saves up to 60% in board space over typical
implementations.
The TPS2149 meets USB 2.0 bus-powered hub
requirements. An integrated LDO regulates the 5-V bus
power down to 3.3 V for the USB controller. The two
MOSFET switches provide power to the downstream
ports. With independent enables, the downstream ports
remain unpowered until the hub completes
enumeration.
Each power-distribution switch is capable of supplying
200 mA of continuous current, and the independent
logic enables are compatible with 5-V logic and 3-V
logic. The switches and the LDO are designed with
controlled rise times and fall times to minimize current
surges.
The TPS2149 has active-low enables while the
TPS2159 has active-high enables.
LDO and dual switch family selection guide and schematics
VIN/SW1
LDO_EN
EN1
SW2
EN2
GND
TPS2145/55
TPS2147/57
TSSOP−14 LDO_OUT
MSOP−10
VIN/SW1
LDO
LDO
LDO_ADJ
OC1
OUT1
OUT2
OC2
EN1
SW2
EN2
GND
VIN/SW1
LDO_OUT
TPS2148/58
MSOP−8
LDO
OC1 LDO_EN
OUT1 EN2
OUT2
OC2
EN1
GND
LDO_OUT VIN
OUT2
OUT1 EN1
EN2
GND
TPS2149/59
MSOP−8
LDO LDO_OUT
OUT1
OC
OUT2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2001, Texas Instruments Incorporated
www.ti.com
1

TPS2149 Datasheet
TPS2149
TPS2159
SLVS401 − AUGUST 2001
AVAILABLE OPTIONS
PACKAGE
TA
DESCRIPTION
AND PIN
COUNT
Adjustable LDO with LDO enable
TSSOP-14
−40°C to 85°C
3.3-V fixed LDO
3.3-V Fixed LDO with LDO enable and LDO output
switch
MSOP-10
MSOP-8
3.3-V Fixed LDO, shared input with switches
MSOP-8
NOTE: All options available taped and reeled. Add an R suffix (e.g. TPS2145IPWPR)
PACKAGED DEVICES
ACTIVE LOW
(SWITCH)
ACTIVE HIGH
(SWITCH)
TPS2145IPWP TPS2155IPWP
TPS2147IDGQ TPS2157IDGQ
TPS2148IDGN TPS2158IDGN
TPS2149IDGN TPS2159IDGN
TPS2149, TPS2159
MSOP (DGN) PACKAGE
(TOP VIEW)
OUT1
VIN
LDO_OUT
OUT2
1
2
3
4
8 EN1
7 EN2
6 OC
5 GND
Pins 7 and 8 are active high for TPS2159.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Input voltage range: VI(VIN),VI(ENx), . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V
Output voltage range: VO(OUTx), VO(LDO_OUT), VO(OC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V
Maximum output current, IO(OC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA
Continuous output current, IO(OUT), IO(LDO_OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating virtual-junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 110°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Electrostatic discharge (ESD) protection: Human body model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
Charged device model (CDM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kV
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltages are with respect to GND.
PACKAGE
MSOP8
DISSIPATION RATING TABLE
TA 25°C
POWER RATING
1455.5 mW
DERATING FACTOR
ABOVE TA = 25°C
17.1 mW/°C
TA = 70°C
TA = 85°C
POWER RATING POWER RATING
684.9 mW
428.08 mW
2 www.ti.com


Features Datasheet pdf TPS2149 TPS2159 SLVS401 − AUGUST 2001 3.3ĆV LDO AND DUAL SWITCH FOR USB BU SĆPOWERED HUB POWER MANAGEMENT FEATUR ES D Complete Power Management Solution for USB Bus-Powered Hubs D 3.3-V 200 m A Low-Dropout Voltage Regulator D Two 5 -V 340-mΩ (Typ) High-Side MOSFETs D I ndependent Thermal- and Short-Circuit P rotection for LDO and Each Switch D Ove rcurrent Indicator With Transient Filte r D 2.9-V to 5.5-V Operating Range D CM OS- and TTL-Compatible Enable Inputs D 75-µA (Typ) Supply Current D Available in 8-Pin MSOP (PowerPAD) D −40°C to 85°C Ambient Temperature Range APP LICATIONS D USB Bus-Powered Hubs − Ke yboards − Monitors − Hub Boxes DES CRIPTION The TPS2149 incorporates two p ower distribution switches and an LDO i n one small package, providing a USB bu s-powered hub power management solution that saves up to 60% in board space ov er typical implementations. The TPS2149 meets USB 2.0 bus-powered hub requirem ents. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB cont.
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