参数资料
型号: MAX1515
厂商: Maxim Integrated Products, Inc.
英文描述: Low-Voltage, Internal Switch, Step-Down/DDR Regulator
中文描述: 低电压、内置开关、降压型/DDR稳压器
文件页数: 8/24页
文件大小: 504K
代理商: MAX1515
M
Low-Voltage, Internal Switch,
Step-Down/DDR Regulator
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(MAX1515 Circuit of Figure 1, V
IN
= 2.5V, V
DD
= V
CC
=
SHDN
= MODE = 3.3V, T
A
= +25°C, unless otherwise noted.)
REF VOLTAGE
vs. REF LOAD CURRENT
M
REF LOAD CURRENT (
μ
A)
R
80
60
20
40
1.098
1.100
1.102
1.104
1.096
0
100
REFOUT VOLTAGE REGULATION
vs. LOAD CURRENT
M
REFOUT LOAD CURRENT (mA)
R
10
5
0
-5
-10
1.240
1.245
1.250
1.255
1.260
1.265
1.235
-15
15
TOFF TIME
vs. TOFF RESISTOR
M
TOFF RESISTOR (k
Ω
)
T
μ
s
400
300
200
100
1
2
3
4
5
0
0
500
PEAK CURRENT LIMIT
vs. SS VOLTAGE
M
SS VOLTAGE (V)
P
1.6
1.4
1.2
1
2
3
4
5
0
1.0
1.8
V
IN
= 2.5V
V
OUT
= 1.25V
R
TOFF
= 110k
Ω
STARTUP AND SHUTDOWN WAVEFORM
(HEAVY LOAD)
MAX1515 toc12
500
μ
s/div
D: INDUCTOR CURRENT, 1A/div
E: OUTPUT VOLTAGE, 1V/div
3.3V
A
B
C
D
E
0
0
0
1A
0
1.25V
0
A: PGOOD, 5V/div
B: SS, 2V/div
C: SHDN, 5V/div
SKIP = GND, R
LOAD
= 10
Ω
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