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参数资料
| 型号： | MAX1515ETG |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | Low-Voltage, Internal Switch, Step-Down/DDR Regulator |
| 中文描述： | 4.7 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, QCC24 |
| 封装： | 4 X 4 MM, 0.8 MM HEIGHT, MO-220-WGGD, TQFN-8 |
| 文件页数： | 5/24页 |
| 文件大小： | 504K |
| 代理商： | MAX1515ETG |
M
Low-Voltage, Internal Switch,
Step-Down/DDR Regulator
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
IN
= +3.3V, V
CC
= V
DD
=
SHDN
= MODE = +3.3V, V
REFIN
= V
REF
,
SKIP
= GND,
T
A
= -40°C to +85°C
, unless
otherwise noted. Note 5)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONTROLLER
V
IN
1.3
3.0
0.5
3.6
3.6
V
CC
Input Voltage Range
V
CC
, V
DD
V
Output Adjust Range
V
OUT
≤
V
IN
V
V
FB
-
V
REFIN
V
IN
= +3.3V, I
LOAD
= 0, MODE = V
CC
-5
+5
mV
FBSEL0 = V
CC
,
FBSEL1 = V
CC
,
REFIN = REF
2.438
2.562
FBSEL0 = V
CC
,
FBSEL1 = GND,
REFIN = REF
1.755
1.845
FBSEL0 = GND,
FBSEL1 = V
CC
,
REFIN = REF
1.463
1.538
Feedback Voltage Accuracy
V
FB
V
IN
= +3.3V, I
LOAD
= 0,
MODE = low
FBSEL0 = GND,
FBSEL1 = GND,
REFIN = 0.5V
0.487
0.513
V
Sink-Mode Detect Threshold
V
FB
-
V
REFIN
MODE = V
CC
, V
REFIN
= +0.5V to +1.5V
+15
+35
mV
Source-Mode Detect Threshold
V
FB
-
V
REFIN
R
NMOS
f
SW
MODE = V
CC
, V
REFIN
= +0.5V to +1.5V
-35
-15
mV
nFET On-Resistance
Switching Frequency
V
CC
= V
DD
= V
IN
= +3.3V, I
LOAD
= 0.5A
(Note 2)
0.10
1
Ω
MHz
Current-Limit Threshold
I
LIMIT_P
V
IN
= +3.3V, MODE = GND or V
CC
,
positive or sourcing mode
3.35
5.05
A
Pulse-Skipping Current Threshold
I
SKIP_P
V
IN
= +3.3V, MODE = GND or V
CC
,
positive or sourcing mode
0.4
1.2
A
R
TOFF
= 33.2k
Ω
R
TOFF
= 110k
Ω
R
TOFF
= 499k
Ω
0.250
0.8
3.8
5
3
100
0.425
1.2
5.2
Off-Time
t
OFF
V
FB
> 0.3 x V
TARGET
(Note 4)
μs
Maximum On-Time
SS Source Current
SS Sink Current
t
ON(MAX)
I
SS(SRC)
I
SS(SNK)
μs
μA
μA
7
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