參數(shù)資料
型號： TPS68625
廠商： Texas Instruments, Inc.
英文描述： ULTRALOW-NOISE, HIGH PSRR, FAST RF 1.5 A LOW-DROPOUT LINEAR REGULATORS
中文描述： 超低噪聲，高PSRR，快速射頻1.5低壓差線性穩(wěn)壓器
文件頁數(shù)： 3/17頁
文件大?。?/td> 559K
代理商： TPS68625
www.ti.com
PACKAGE DISSIPATION RATINGS
ELECTRICAL CHARACTERISTICS
Over recommended operating temperature range (T
J
= -40
°
C to 125
°
C), V
EN
= V
IN
, V
IN
= V
OUT(nom)
+ 1 V, I
OUT
= 1mA,
C
OUT
= 10μF, C
NR
= 0.01 μF, unless otherwise noted. Typical values are at 25
°
C.
TPS78601, TPS78618
TPS78625, TPS78628
TPS78630, TPS78633
SLVS389D–SEPTEMBER 2002–REVISED OCTOBER 2004
PACKAGE
DDPAK
SOT223
BOARD
High-K
(1)
Low-K
(2)
R
Θ
JC
2
°
C/W
15
°
C/W
R
Θ
JA
23
°
C/W
53
°
C/W
(1)
The JEDEC high-K (2s2p) board design used to derive this data was a 3-in x 3-in (7,5-cm x 7,5-cm), multilayer board with 1 ounce
internal power and ground planes and 2 ounce copper traces on top and bottom of the board.
The JEDEC low-K (1s) board design used to derive this data was a 3-in x 3-in (7,5-cm x 7,5cm), two-layered board with 2 ounce copper
traces on top of the board.
(2)
PARAMETER
TEST CONDITIONS
MIN
2.7
TYP
MAX
5.5
1.5
UNIT
V
A
V
V
V
V
V
V
%/V
mV
Input voltage, V
IN(1)
Continuous output current I
OUT
0
TPS78601
TPS78618
TPS78625
TPS78628
TPS78630
TPS78633
V
FB
5.5 - V
DO
1.836
0 μA < I
OUT
< 1.5 A
0 μA < I
OUT
< 1.5 A
0 μA < I
OUT
< 1.5 A
0 μA < I
OUT
< 1.5 A
0 μA < I
OUT
< 1.5 A
V
OUT
+ 1 V < V
IN
≤
5.5 V
0 μA < I
OUT
< 1.5 A
I
OUT
= 1.5 A
I
OUT
= 1.5 A
I
OUT
= 1.5 A
V
OUT
= 0 V
0 μA < I
OUT
< 1.5 A
V
EN
= 0 V, 2.7 V < V
IN
< 5.5 V
FB = 1.8 V
f = 100 Hz, I
OUT
= 10 mA
f = 100 Hz, I
OUT
= 1.5 A
f = 10 kHz, I
OUT
= 1.5 A
f = 100 kHz, I
OUT
= 1.5 A
2.8 V < V
IN
< 5.5 V
3.5 V < V
IN
< 5.5 V
3.8 V < V
IN
< 5.5 V
4 V < V
IN
< 5.5 V
4.3 V < V
IN
< 5.5 V
1.764
2.45
2.744
2.94
3.234
1.8
2.5
2.8
2.55
2.856
3.06
3.366
Output voltage
3
3.3
Output voltage line regulation (
V
OUT
%/V
IN
)
(1)
Load regulation (
V
OUT
%/V
OUT
)
5
7
12
T
J
= 25
°
C
TPS78628
TPS78630
TPS78633
410
390
340
580
550
510
4.2
385
Dropout voltage
(2)
V
IN
= V
OUT(nom)
- 0.1 V
mV
Output current limit
Ground pin current
Shutdown current
(3)
FB pin current
2.4
A
μA
μA
μA
260
0.07
1
1
59
52
49
32
66
51
49
48
50
75
110
Power supply ripple rejection
TPS78630
dB
C
NR
= 0.001 μF
C
NR
= 0.0047 μF
C
NR
= 0.01 μF
C
NR
= 0.1 μF
C
NR
= 0.001 μF
C
NR
= 0.0047 μF
C
NR
= 0.01 μF
BW = 100 Hz to 100 kHz,
I
OUT
= 1.5 A
Output noise voltage (TPS78630)
μV
RMS
Time, start-up (TPS78630)
R
L
= 2
, C
OUT
= 1 μF
μs
High-level enable input voltage
Low-level enable input voltage
EN pin current
UVLO threshold
UVLO hysteresis
2.7 V < V
IN
< 5.5 V
2.7 V < V
IN
< 5.5 V
V
EN
= 0
V
CC
rising
1.7
V
IN
0.7
V
V
μA
V
mV
0
-1
1
2.25
2.65
100
(1)
(2)
(3)
Minimum V
= V
+ V
or 2.7 V, whichever is greater.
Dropout is not measured for TPS78618 or TPS78625 since minimum V
= 2.7 V.
For adjustable version, this applies only after V
IN
is applied; then V
EN
transitions high to low.
3
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