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| 型號： | NCP1523 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 6-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans |
| 中文描述： | 6甲，2.2 V至5.5 V輸入，非隔離，寬輸出，可調(diào)電源模塊的TurboTrans |
| 文件頁數(shù)： | 4/35頁 |
| 文件大小： | 1128K |
| 代理商： | NCP1523 |
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ELECTRICAL CHARACTERISTICS
PTH04T230W
T
=25
°
C, V
= 5 V, V
O
= 3.3 V, C
I
= 330 μF, C
O
1 = 100 μF ceramic, C
O
2 = 150 μF non-ceramic, and I
O
= I
O
max (unless
otherwise stated)
PTH04T230W, PTH04T231W
SLTS271A–SEPTEMBER 2006–REVISED OCTOBER 2006
PARAMETER
TEST CONDITIONS
PTH04T230W
UNIT
MIN
TYP
MAX
I
O
Output current
Over V
O
range
25
°
C, natural convection
0.69
≤
V
O
≤
1.7
1.7 < V
O
≤
3.6
0
6
A
2.2
5.5
V
I
Input voltage range
Over I
O
range
V
V
O
+0.5
(1)
5.5
Output adjust range
Over I
O
range
0.69
3.6
V
Set-point voltage tolerance
±
0.5
±
0.3
±
2
±
2
±
1.0
(2)
%V
o
%V
o
mV
Temperature variation
–40
°
C < T
A
< 85
°
C
Over V
I
range
Over I
O
range
Includes set-point, line, load, –40
°
C
≤
T
A
≤
85
°
C
R
SET
= 1.21 k
, V
O
= 3.3 V
R
SET
= 2.38 k
, V
O
= 2.5 V
R
SET
= 4.78 k
, V
O
= 1.8 V
I
O
= 6 A
R
SET
= 7.09 k
, V
O
= 1.5 V
R
SET
= 12.1 k
, V
O
= 1.2 V
R
SET
= 20.8 k
, V
O
= 1.0 V
R
SET
= 689 k
, V
O
= 0.7 V
20-MHz bandwidth
V
O
Line regulaltion
Load regulation
mV
Total output variation
±
1.5
(2)
%V
O
94%
92%
90%
η
Efficiency
89%
87%
85%
81%
V
O
Ripple (peak-to-peak)
Overcurrent threshold
1
%V
O
A
I
LIM
Reset, followed by auto-recovery
10
w/o TurboTrans
C
O
1 = 100
μ
F, ceramic
C
2 = 150
μ
F,
non-ceramic
Recovery Time
100
μSec
V
O
Overshoot
100
mV
2.5 A/μs load step
50% to 100% I
O
max
V
I
= 3.3 V
V
O
= 2.5 V
w/o TurboTrans
(3)
C
O
1 = 100
μ
F, ceramic
C
O
2 = 990
μ
F, Type B
with TurboTrans
C
O
1 = 100
μ
F, ceramic
C
O
2 = 990
μ
F, Type B
R
TT
= 1.54 k
Recovery Time
120
μSec
Transient response
V
O
Overshoot
60
mV
Recovery Time
180
μSec
V
O
Overshoot
35
mV
I
IL
dV
track
/dt
Track input current (pin 9)
Pin to GND
-130
(4)
μA
Track slew rate capability
C
O
≤
C
O
(max)
V
I
increasing, R
UVLO
= OPEN
V
I
decreasing, R
UVLO
= OPEN
Hysteresis, R
UVLO
≤
52.3 k
Input high voltage (V
IH
)
Input low voltage (V
IL
)
Input low current (I
IL
), Pin 10 to GND
Inhibit (pin 10) to GND, Track (pin 9) open
1
V/ms
1.95
2.19
Adjustable Under-voltage lockout
(pin 10)
UVLO
ADJ
1.3
1.5
V
0.5
Open
(5)
V
Inhibit control (pin 10)
-0.2
0.6
125
μA
I
in
f
s
f
SYNC
V
SYNCH
V
SYNCL
t
SYNC
Input standby current
5
mA
Switching frequency
Over V
I
and I
O
ranges, SmartSync (pin 1) to GND
300
kHz
Synchronization (SYNC) frequency
240
400
kHz
SYNC High-Level Input Voltage
2
5.5
V
SYNC Low-Level Input Voltage
0.8
V
SYNC Minimum Pulse Width
200
nSec
(1)
(2)
The minimum input voltage is 2.2 V or (V
+ 0.5) V, whichever is greater.
The set-point voltage tolerance is affected by the tolerance and stability of R
SET
. The stated limit is unconditionally met if R
SET
has a
tolerance of 1% with 200 ppm/°C or better temperature stability.
Without
TurboTrans
, the minimum ESR limit of 7 m
must not be violated.
A low-leakage (<100 nA), open-drain device, such as MOSFET or voltage supervisor IC, is recommended to control pin 9. The
open-circuit voltage is less than V
.
This control pin has an internal pull-up. Do not place an external pull-up on this pin. If it is left open-circuit, the module operates when
input power is applied. A small, low-leakage (<100 nA) MOSFET is recommended for control. The open-circuit voltage is less than 3.5
Vdc. For additional information, see the related application information section.
(3)
(4)
(5)
4
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