參數(shù)資料
型號(hào)： MAX669EUB+T
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.8V to 28V Input, PWM Step-Up Controllers in µMAX
中文描述： SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, PDSO10
封裝： COMPACT, UMAX-10
文件頁(yè)數(shù)： 14/18頁(yè)
文件大?。?/td> 289K
代理商： MAX669EUB+T
MAX668/MAX669
1.8V to 28V Input, PWM Step-Up
Controllers in MAX
_______________________________________________________________________________________
5
50
60
65
70
75
80
85
90
95
1
10
100
1000
10,000
EFFICIENCY vs. LOAD CURRENT
(VOUT = 5V)
MAX668
toc01
LOAD CURRENT (mA)
EFFICIENCY
(%)
55
VIN = 3.3V
VIN = 3.6V
VIN = 2V
VIN = 2.7V
BOOTSTRAPPED
FIGURE 3
R4 = 200k
70
1
10,000
1000
10
100
MAX668 EFFICIENCY vs.
LOAD CURRENT (VOUT = 12V)
85
75
95
80
90
MAX668
toc02
LOAD CURRENT (mA)
EFFICIENCY
(%)
VIN = 5V
NON-BOOTSTRAPPED
FIGURE 4
R4 = 200k
MAX668 EFFICIENCY vs.
LOAD CURRENT (VOUT = 24V)
MAX668
toc03
LOAD CURRENT (mA)
EFFICIENCY
(%)
70
1
10,000
1000
10
100
85
75
95
80
90
VIN = 8V
VIN = 5V
VIN = 12V
NON-BOOTSTRAPPED
FIGURE 4
R4 = 200k
0
1.5
1.0
0.5
2.0
2.5
3.0
0
400
300
100 200
500 600 700 800 900 1000
MAX669 MINIMUM START-UP VOLTAGE
vs. LOAD CURRENT
MAX668
toc04
LOAD CURRENT (mA)
MINIMUM
START-UP
VOLTAGE
(V)
VOUT = 5V
VOUT = 12V
BOOTSTRAPPED
FIGURE 2
0
0.5
1.5
2.0
2.5
3.0
3.5
010
5
15202530
SHUTDOWN CURRENT vs.
SUPPLY VOLTAGE
MAX668
toc07
SUPPLY VOLTAGE (V)
SHUTDOWN
CURRENT
(
A)
1.0
CURRENT INTO VCC PIN
MAX668
MAX669
0
400
200
800
600
1000
1200
010
15
5
202530
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
MAX668
toc05
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(
A)
MAX669
MAX668
CURRENT INTO VCC PIN
ROSC = 500k
0
500
1000
2000
2500
3000
3500
4000
04
26
8
10
12
NO-LOAD SUPPLY CURRENT vs.
SUPPLY VOLTAGE
MAX668
toc06
SUPPLY VOLTAGE (V)
NO-LOAD
SUPPLY
CURRENT
(
A)
1500
VOUT = 12V
BOOTSTRAPPED
FIGURE 2
R4 = 200k
150
190
210
170
250
230
270
290
-40
-20
0
20
40
60
80
100
SUPPLY CURRENT vs.
TEMPERATURE
MAX668
toc08
TEMPERATURE (
°C)
SUPPLY
CURRENT
(
A)
ROSC = 100k
ROSC = 200k
ROSC = 500k
0.1
1
10
20
LDO DROPOUT VOLTAGE vs.
LDO CURRENT
MAX668
toc09
LDO CURRENT (mA)
LDO
DROPOUT
VOLTAGE
(mV)
300
0
50
100
150
200
250
VIN = 3V
VIN = 4.5V
Typical Operating Characteristics
(Circuits of Figures 2, 3, 4, and 5; TA = +25°C; unless otherwise noted.)
相關(guān)PDF資料
PDF描述
MAX6690MEE+T 2°C Accurate Remote/Local Temperature Sensor with SMBus Serial Interface
MAX6692MSA+T Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms
MAX6692MUA+ Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms
MAX6692MUA+T Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms
MAX6695AUB+ Dual Remote/Local Temperature Sensors with SMBus Serial Interface
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