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TPS60122PWPR Fiches technique(PDF) 7 Page - Texas Instruments

No de pièce TPS60122PWPR
Description  REGULATED 3.3 V, 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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TPS60122PWPR Fiches technique(HTML) 7 Page - Texas Instruments

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TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125
REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP
DC/DC CONVERTERS
SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
low-battery detector (TPS60120, TPS60122, TPS60124) (continued)
A 100-nF bypass capacitor should be connected in parallel to R2 if large line transients are expected. These
voltage drops can inadvertently trigger the low-battery comparator and produce a wrong low-battery warning
signal at the LBO terminal.
power-good detector (TPS60121, TPS60123, TPS60125)
The PG terminal is an open-drain output that is pulled low when the output is out of regulation. When the output
voltage rises to about 90% of its nominal voltage, the power-good output is released. PG is high impedance
when the device is disabled. A pullup resistor must be connected between PG and OUT. The pullup resistor
should be in the 100-k
Ω to 1-MΩ range. If the power-good function is not used, then PG should remain
unconnected.
CO
22
µF
Output
3.3 V, 200 mA
Input
1.8 V to 3.6 V
IN
IN
NC
C1+
C1–
ENABLE
PGND GND
OUT
OUT
FB
PG
C2+
C2–
C2
2.2
µF
C1
2.2
µF
Off/On
CI
10
µF
R1
1 M
TPS60121
Power-Good Output
Figure 2. Typical Operating Circuit Using Power-Good Comparator
absolute maximum ratings (see Note 1)
Input voltage range, VI (IN, OUT, ENABLE, FB, LBI, LBO/PG)
–0.3 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, VID (C1+, C2+ to GND)
–0.3 V to (VO + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, VID (C1–, C2– to GND)
–0.3 V to (VI + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation
See dissipation rating table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current TPS60120, TPS60121, TPS60124, TPS60125
300 mA
. . . . . . . . . . . . . . . . . . . . . .
Continuous output current TPS60122, TPS60123
150 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–55
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10s
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, TJ
150
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† 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.
NOTE 1: V(ENABLE),V(LBI),andV(LBO/PG)canexceedVIuptothemaximumratedvoltagewithoutincreasingtheleakagecurrentdrawnbythese
inputs.


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