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TPS77115 Datasheet(PDF) 2 Page - Texas Instruments

No. de pieza TPS77115
Descripción Electrónicos  150-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS77115 Datasheet(HTML) 2 Page - Texas Instruments

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TPS77101/115/118/127/128/133/150 WITH RESET OUTPUT
TPS77201/215/218/227/228/233/250 WITH POWER GOOD OUTPUT
150-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING
SLVS225D – FEBRUARY 2000 – REVISED OCTOBER 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The device is enabled when the EN pin is connected to a low-level input voltage. This LDO family also features
a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent
current to less than 1
µA at TJ = 25°C.
The TPS771xx features an integrated power-on reset, commonly used as a supply voltage supervisor (SVS)
or reset output voltage. The RESET output of the TPS771xx initiates a reset in DSP, microcomputer or
microprocessor systems at power up and in the event of an undervoltage condition. An internal comparator in
the TPS771xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated
output voltage. When OUT reaches 95% of its regulated voltage, RESET will go to a high-impedance state after
a 220 ms delay. RESET will go to low-impedance state when OUT is pulled below 95% (i.e. over load condition)
of its regulated voltage.
For the TPS772xx, the power good terminal (PG) is an active high output, which can be used to implement a
power-on reset or a low-battery indicator. An internal comparator in the TPS772xx monitors the output voltage
of the regulator to detect an undervoltage condition on the regulated output voltage. When OUT falls below 82%
of its regulated voltage, PG will go to a low-impedance state. PG will go to a high-impedance state when OUT
is above 82% of its regulated voltage.
AVAILABLE OPTIONS
T
OUTPUT VOLTAGE
(V)
PACKAGED DEVICES
MSOP (DGK)
TJ
TYP
TPS771xx
SYMBOL
TPS772xx
SYMBOL
5.0
TPS77150DGK
AFV
TPS77250DGK
AGE
3.3
TPS77133DGK
AFU
TPS77233DGK
AGD
2.8
TPS77128DGK
AFS
TPS77228DGK
AGB
– 40
°Cto125°C
2.7
TPS77127DGK
AFR
TPS77227DGK
AGA
– 40
°C to 125°C
1.8
TPS77118DGK
AFP
TPS77218DGK
AFY
1.5
TPS77115DGK
AFO
TPS77215DGK
AFX
Adjustable
1.5 V to 5.5 V
TPS77101DGK
AFN
TPS77201DGK
AFW
NOTE: The TPS77101 and TPS77201 are programmable using an external resistor divider (see application information).
The DGK package is available taped and reeled. Add an R suffix to the device type (e.g., TPS77101DGKR).
OUT
SENSE
6
5
3
IN
IN
EN
GND
4
7
1
VI
0.1
µF
10
µF
+
OUT
8
VO
PG or RESET
PG or
RESET
2
Figure 1. Typical Application Configuration (For Fixed Output Options)


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