参数资料
型号: LTC3527EUD-1#PBF
厂商: Linear Technology
文件页数: 6/22页
文件大小: 0K
描述: IC REG BOOST SYNC ADJ DL 16QFN
标准包装: 121
类型: 升压(升压)
输出类型: 可调式
输出数: 2
输出电压: 1.6 V ~ 5.25 V
输入电压: 0.5 V ~ 5 V
PWM 型: 电流模式,混合
频率 - 开关: 1.2MHz,2.2MHz
电流 - 输出: 400mA,800mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
包装: 管件
供应商设备封装: 16-QFN(3x3)
LTC3527/LTC3527-1
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C, unless otherwise noted)
1.30
Current Limit vs Temperature
CONVERTER1
1.205
Feedback Voltage vs Temperature
0.75
Start-Up Voltage vs Temperature
1.20
1.10
V IN = 1.2V
1.00 V OUT = 3.3V
1.200
0.70
0.65
0.90
1.195
0.60
0.80
0.70
1.190
0.55
0.60
CONVERTER2
0.50
0.50
–45 –30 –15
0
15
30
45
60
75
90
1.185
–55 –35 –15
5 25
45 65 85 105 125
0.45
–50
–30
–10
10
30 50
70
90
TEMPERATURE (°C)
35271 G17
TEMPERATURE (°C)
35271 G18
TEMPERATURE (°C)
35271 G19
Burst Mode Quiescent Current
vs V OUT
R DS(ON) (NMOS and PMOS)
vs V OUT
R DS(ON) (NMOS and PMOS)
Change vs Temperature
16
V IN = 1.2V
0.90
15
0.80
PMOS2
0.70
PMOS2
14
0.70
NMOS2
0.60
13
12
0.60
0.50
0.50
NMOS2
PMOS1
11
0.40
NMOS1
PMOS1
0.40
NMOS1
10
1.5
2
2.5
3
3.5
4
4.5
5
0.30
1.5
2
2.5
3
3.5
4
4.5
5
0.30
–45 –30 –15
0
15
30
45
60
75
90
V OUT (V)
35271 G20
V OUT (V)
35271 G21
TEMPERATURE (°C)
35271 G22
Fixed Frequency Switching
SW1 PIN
2V/DIV
Waveform and V OUT Ripple
SW1 PIN
2V/DIV
Burst Mode Waveforms
V OUT1
50mV/DIV
AC-COUPLED
V OUT1
10mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
200mA/DIV
500μs/DIV
V IN1 = 1.2V
V OUT1 = 3.3V AT 100mA
C OUT1 = 10μF
35271 G23
V IN1 = 1.2V
V OUT1 = 3.3V
C OUT1 = 10μF
10μs/DIV
35271 G24
35271fc
6
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