參數(shù)資料
型號: MAX1556ETB
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: 16レA IQ, 1.2A PWM Step-Down DC-DC Converters
中文描述: 2.25 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, DSO10
封裝: 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEED-3, TDFN-10
文件頁數(shù): 4/12頁
文件大小: 732K
代理商: MAX1556ETB
M
16μA I
Q
, 1.2A PWM DC-DC
Step-Down Converters
4
_______________________________________________________________________________________
Typical Operating Characteristics
(V
IN
= V
INP
= 3.6V, D1 = D2 =
SHDN
= IN, Circuits of Figures 2 and 3, T
A
= +25°C, unless otherwise noted.)
EFFICIENCY vs. LOAD CURRENT
WITH 3.3V OUTPUT
M
LOAD CURRENT (mA)
E
100
10
1
60
70
80
90
100
50
40
0.1
1000
10,000
V
IN
= 5V
V
IN
= 3.6V
V
IN
= 4.2V
EFFICIENCY vs. LOAD CURRENT
WITH 2.5V OUTPUT
M
LOAD CURRENT (mA)
E
100
10
1
60
70
80
90
100
50
40
0.1
1000
10,000
V
IN
= 3.6V
V
IN
= 3V
V
IN
= 2.6V
V
IN
= 5V
EFFICIENCY vs. LOAD CURRENT
WITH 1.8V OUTPUT
M
LOAD CURRENT (mA)
E
100
10
1
60
70
80
90
100
50
40
0.1
1000
10,000
V
IN
= 5V
V
IN
= 3.6V
V
IN
= 3V
V
IN
= 2.6V
EFFICIENCY vs. LOAD CURRENT
WITH 1.0V OUTPUT (MAX1557)
M
LOAD CURRENT (mA)
E
100
10
1
60
70
80
90
100
50
40
0.1
1000
V
IN
= 5V
V
IN
= 3.6V
V
IN
= 3V
V
IN
= 2.6V
OUTPUT VOLTAGE
vs. LOAD CURRENT
M
LOAD CURRENT (mA)
O
1000
800
600
400
200
1.75
1.76
1.77
1.78
1.79
1.80
1.81
1.82
1.83
1.84
1.74
0
1200
T
A
= -45
°
C
T
A
= +25
°
C
T
A
= +85
°
C
OUTPUT VOLTAGE vs. INPUT VOLTAGE
WITH 600mA LOAD
M
INPUT VOLTAGE (V)
O
5.0
4.5
4.0
3.5
3.0
1.780
1.781
1.782
1.783
1.784
1.785
1.786
1.787
1.788
1.789
1.779
2.5
5.5
T
A
= -40
°
C
T
A
= +25
°
C
T
A
= +85
°
C
OUTPUT VOLTAGE vs. INPUT VOLTAGE
WITH NO LOAD
M
INPUT VOLTAGE (V)
O
5.0
4.5
4.0
3.5
3.0
1.804
1.805
1.806
1.807
1.808
1.809
1.810
1.811
1.812
1.803
2.5
5.5
T
A
= -40
°
C
T
A
= +25
°
C
T
A
= +85
°
C
SUPPLY CURRENT vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
S
μ
A
5
4
3
2
2
4
6
8
10
12
14
16
18
20
0
1
6
HEAVY-LOAD SWITCHING WAVEFORMS
MAX1556/7 toc09
I
LOAD
= 750mA
V
OUT
AC-COUPLED
10mV/div
V
LX
2V/div
0
I
LX
0
400ns
500mA/div
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