參數(shù)資料
型號： TPS6734IPE4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.5 A SWITCHING REGULATOR, 170 kHz SWITCHING FREQ-MAX, PDIP8
封裝： ROHS COMPLIANT, PLASTIC, DIP-8
文件頁數(shù)： 19/22頁
文件大小： 479K
代理商： TPS6734IPE4
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
F
Output current at REF
0
100
A
Reference capacitor
0.01
F
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
A
Standby
EN = 0.4 V, into VCC
3
A
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
A
On resistance at OUT
Current at OUT = 500 mA
0.7
Leakage current at OUT
VDS = 12 V
1
A
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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