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TPS6734I Fiches technique(PDF) 6 Page - Texas Instruments

No de pièce TPS6734I
Description  FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS6734I Fiches technique(HTML) 6 Page - Texas Instruments

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TPS6734I
FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
SLVS127A – AUGUST 1995 – REVISED JANUARY 1999
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage
2.7
5
12
V
Compensation capacitor
0.001
µF
Output current at REF
0
100
µA
Reference capacitor
0.01
µF
Operating free-air temperature, TA
–40
85
°C
electrical characteristics over recommended operating free-air temperature range, VCC = 5 V,
IO(LOAD) = 0 mA, EN = 5 V, typical values are at TA = 25°C (unless otherwise noted) (refer to circuit
shown in Figure 13)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Operating
Entire circuit
1.2
2.5
mA
Supply current
Standby
EN = 0.4 V, entire circuit
3
µA
Standby
EN = 0.4 V, into VCC
3
µA
High-level input threshold voltage at EN
2
V
Low-level input threshold voltage at EN
0.4
V
Shutdown input leakage current at EN
–1
1
µA
On resistance at OUT
Current at OUT = 500 mA
0.7
Leakage current at OUT
VDS = 12 V
1
µA
Reference voltage
1.22
V
Reference drift
TA = – 40°C to 85°C
6.7
ppm/
°C
Oscillator frequency
170
kHz
Compensation pin impedance
7500
performance characteristics over recommended operating free-air temperature range, typical
circuit connected as shown in Figure 13, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Output voltage
VCC = 4.75 V,
0 mA < IO(LOAD) < 120 mA
11.64
12.12
12.6
V
Load current
VCC = 3.75 V
120
150
mA
Load current
VCC = 3.0 V,
Figure 11
150
mA
Line regulation
VCC = 5 V to 12 V,
IO(LOAD) = 50 mA
0.20%
Load regulation
IO(LOAD) = 0 mA to 120 mA
0.0042%
Efficiency
VCC = 5 V,
IO(LOAD) = 120 mA
86%


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