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TPS77930DGK Datasheet(PDF) 5 Page - Texas Instruments

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Part # TPS77930DGK
Description  250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS77930DGK Datasheet(HTML) 5 Page - Texas Instruments

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TPS77901, TPS77918, TPS77925, TPS77930
250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE
SLVS283D – MARCH 2000 – REVISED OCTOBER 2000
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description
pin functions
enable (EN)
The EN terminal is an input which enables or shuts down the device. If EN is a logic low, the device will be in
shutdown mode. When EN goes to logic high, then the device will be enabled.
sense (SENSE)
The SENSE terminal of the fixed-output options must be connected to the regulator output, and the connection
should be as short as possible. Internally, SENSE connects to a high-impedance wide-bandwidth amplifier
through a resistor-divider network and noise pickup feeds through to the regulator output. It is essential to route
the SENSE connection in such a way to minimize/avoid noise pickup. Adding RC networks between the SENSE
terminal and VO to filter noise is not recommended because it can cause the regulator to oscillate.
feedback (FB)
FB is an input terminal used for the adjustable-output options and must be connected to an external feedback
resistor divider. The FB connection should be as short as possible. It is essential to route it in such a way to
minimize/avoid noise pickup. Adding RC networks between FB terminal and VO to filter noise is not
recommended because it can cause the regulator to oscillate.
reset (RESET)
The RESET terminal is an open drain, active low output that indicates the status of VO. When VO reaches 95%
of the regulated voltage, RESET will go to a high-impedance state after a 220-ms delay. RESET will go to a
low-impedance state when Vout is below 95% of the regulated voltage. The open-drain output of the RESET
terminal requires a pullup resistor.
absolute maximum ratings over operating junction temperature range (unless otherwise noted)
Input voltage range, VI
– 0.3 V to 13.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at EN
–0.3 V to 16.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum RESET voltage
16.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peak output current
Internally limited
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage, VO (OUT, FB)
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, TJ
– 40
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
– 65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD rating, HBM
2 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 voltage values are with respect to network terminal ground.
DISSIPATION RATING TABLE – FREE-AIR TEMPERATURES
PACKAGE
AIR FLOW
(CFM)
θJA
(
°C/W)
θJC
(
°C/W)
TA < 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
0
266.2
3.84
376 mW
3.76 mW/
°C
207 mW
150 mW
DGK
150
255.2
3.92
392 mW
3.92 mW/
°C
216 mW
157 mW
250
242.8
4.21
412 mW
4.12 mW/
°C
227 mW
165 mW


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