TPS78833 LDO Datasheet

TPS78833 Datasheet, PDF, Equivalent


Part Number

TPS78833

Description

150-mA LOW-NOISE LDO

Manufacture

etcTI

Total Page 12 Pages
Datasheet
Download TPS78833 Datasheet


TPS78833
TPS78825, TPS78833
SLVS382A – JUNE 2001 – REVISED JULY 2001
150-mA LOW-NOISE LDO WITH IN-RUSH
CURRENT CONTROL FOR USB APPLICATION
FEATURES
D 150-mA Low-Dropout Regulator
D Available in 2.5 V, 3.3 V
D Programmable Slew Rate Control
D Output Noise Typically 56 µVRMS
D Only 17 µA Quiescent Current at 150 mA
D 1 µA Quiescent Current in Standby Mode
D Dropout Voltage Typically 150 mV at 150 mA
(TPS78833)
D Over Current Limitation
D –40°C to 125°C Operating Junction
Temperature Range
D 5-Pin SOT-23 (DBV) Package
DBV PACKAGE
(TOP VIEW)
IN 1 5 OUT
GND
2
EN 3 4 SR
DESCRIPTION
The TPS78825 and TPS78833 are very small (SOT-23)
package, low-noise LDOs that regulate the output
voltage to 2.5 V and 3.3 V with input voltage ranging
from 2.7 V to an absolute maximum of 13.5 V. These
devices output 150 mA with a peak current of 350 mA
(typ). The TPS788xx family uses the SR pin to program
the output voltage slew rate to control the in-rush
current. This is specifically used in the USB application
where large load capacitance is present at start-up. The
TPS788xx devices use only 17 µA of quiescent current
and exhibit only 56 µVRMS of output voltage noise using
a 10 µF output capacitor.
The usual PNP pass transistor has been replaced by a
PMOS pass element. Because the PMOS pass element
behaves as a low-value resistor, the dropout voltage is
very low, typically 150 mV at 150 mA of load current, and
is directly proportional to the load current.
The TPS788xx also features a logic-enabled sleep
mode to shut down the regulator, reducing quiescent
current to 1 µA typical at TJ = 25°C.
QUIESCENT CURRENT
vs
FREE-AIR TEMPERATURE
25
VCC = 4.3 V
IO = 150 mA
20
IO = 1 mA
15
10
5
0
–40 –25 –10 5 20 35 50 65 80 95 110 125
TA – Free-Air Temperature – °C
OUTPUT VOLTAGE, ENABLE VOLTAGE
vs
TIME (START-UP)
5
0
C(SR) = 0.01 µF
3
C(SR) = 0.1 µF
2
1
0
VI = 4.3 V
VO = 3.3 V
IO = 150 mA
Co = 10 µF
TJ = 25°C
0 10 20 30 40 50 60 70 80 90 100
t – Time – ms
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.
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.
www.ti.com
Copyright 2001, Texas Instruments Incorporated
1

TPS78833
TPS78825, TPS78833
SLVS382A JUNE 2001 REVISED JULY 2001
AVAILABLE OPTIONS
TJ VOLTAGE PACKAGE
40°C to 125°C
2.5 V
3.3 V
SOT-23
(DBV)
The DBVT indicates tape and reel of 250 parts.
The DBVR indicates tape and reel of 3000 parts.
PART NUMBER
TPS78825DBVTTPS78825DBVR
TPS78833DBVT TPS78833DBVR
functional block diagram
SYMBOL
PGZI
PGTI
IN
EN
150 k
Vref
GND
Current Limit
/ Thermal
Protection
OUT
SR
Terminal Functions
TERMINAL
NAME
NO.
EN 3
GND
2
IN 1
OUT
5
SR 4
I/O DESCRIPTION
I Active low enable
Regulator ground
I The IN terminal is the input to the device.
O The OUT terminal is the regulated output of the device.
I The SR terminal is used to control the in-rush current.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)§
Input voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 13.5 V
Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VI + 0.3 V
Voltage on OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
ESD rating, HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 150°C
Operating ambient temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 85°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
§ Stresses beyond those listed under absolute maximum ratingsmay 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 conditionsis not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
BOARD PACKAGE
RθJC
RθJA
DERATING FACTOR
TA 25°C
TA = 70°C
TA = 85°C
ABOVE TA = 25°C POWER RATING POWER RATING POWER RATING
Low K
DBV
65.8°C/W 259°C/W
3.9 mW/°C
386 mW
212 mW
154 mW
High K#
DBV
65.8°C/W 180°C/W
5.6 mW/°C
555 mW
305 mW
222 mW
The JEDEC Low K (1s) board design used to derive this data was a 3 inch x 3 inch, two layer board with 2 ounce copper traces on top of the board.
# The JEDEC High K (2s2p) board design used to derive this data was a 3 inch x 3 inch, multilayer board with 1 ounce internal power and ground
planes and 2 ounce copper traces on top and bottom of the board.
2 www.ti.com


Features TPS78825, TPS78833 SLVS382A – JUNE 20 01 – REVISED JULY 2001 150-mA LOW-NOI SE LDO WITH IN-RUSH CURRENT CONTROL FOR USB APPLICATION FEATURES D 150-mA Low -Dropout Regulator D Available in 2.5 V , 3.3 V D Programmable Slew Rate Contro l D Output Noise Typically 56 µVRMS D Only 17 µA Quiescent Current at 150 mA D 1 µA Quiescent Current in Standby M ode D Dropout Voltage Typically 150 mV at 150 mA (TPS78833) D Over Current Lim itation D –40°C to 125°C Operating Junction Temperature Range D 5-Pin SOT- 23 (DBV) Package DBV PACKAGE (TOP VIEW ) IN 1 5 OUT GND 2 EN 3 4 SR DESCRI PTION The TPS78825 and TPS78833 are ver y small (SOT-23) package, low-noise LDO s that regulate the output voltage to 2 .5 V and 3.3 V with input voltage rangi ng from 2.7 V to an absolute maximum of 13.5 V. These devices output 150 mA wi th a peak current of 350 mA (typ). The TPS788xx family uses the SR pin to prog ram the output voltage slew rate to con trol the in-rush current. This is specifically used in the USB application.
Keywords TPS78833, datasheet, pdf, etcTI, 150-mA, LOW-NOISE, LDO, PS78833, S78833, 78833, TPS7883, TPS788, TPS78, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)