参数资料
型号: LT3587EUD#TRPBF
厂商: Linear Technology
文件页数: 4/24页
文件大小: 0K
描述: IC REG BOOST INV ADJ DL 20QFN
标准包装: 2,500
类型: 升压(升压),反相
输出类型: 可调式
输出数: 2
输出电压: 可调至 ±32V
输入电压: 2.5 V ~ 6 V
PWM 型: 电流模式
频率 - 开关: 1MHz
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-WFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 20-QFN 裸露焊盘(3x3)
LT3587
TYPICAL PERFORMANCE CHARACTERISTICS Speci?cations are at T A = 25°C unless otherwise noted.
Quiescent Current
Shutdown Quiescent Current
When On But Not Switching
10
vs Input Supply Voltage
3.5
vs Input Supply Voltage
2.20
V IN UVLO Voltage vs Temperature
V VIN = 3.6V
EN/SS1 = EN/SS3 = 0V
125°C
V VIN = EN/SS1 = EN/SS3 = 3.6V
FB1 = V FB3 = 1.5V
125°C
FB2 = I FB3 = 0V
8
3.0
90°C
2.15
90°C
6
4
25°C
–40°C
2.5
2.0
25°C
–40°C
2.10
2.05
2
2.5
3
3.5
4
4.5
5
5.5
6
1.5
2.5
3
3.5
4
4.5
5
5.5
6
2.00
–50
–25
0
25
50
75
100
125
INPUT VOLTAGE (V)
3587 G01
FB1, V FB3 and I FB3 Regulation
Voltage vs Temperature
INPUT VOLTAGE (V)
3587 G02
FB2 Regulation Voltage
vs Temperature
TEMPERATURE (°C)
3587 G03
1.240
V VIN = 3.6V
R FB1 = R VFB3 = 1MΩ
R IFB3 = 8.06kΩ
1.230 I VOUT1 = 50mA
I VOUT3 = 20mA
V FB3
0.825
0.813
15
10
V VIN = 3.6V
R FB2 = 1MΩ
I VNEG = 100mA
5
1.220
1.210
FB1
V IFB3
0.800
0.788
0
–5
1.200
–50
–25
0
25
50
75
100
0.775
125
–10
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
3587 G04
FB1, V FB3 , I FB3 Bias Current in
Regulation vs Temperature
TEMPERATURE (°C)
3587 G05
FB2 Bias Current in Regulation
vs Temperature
14.50
106
–7.75
V VIN = 3.6V
14.25
14.00
I VFB3
I FB1
104
102
–7.85
–7.95
R FB2 =1MΩ
I VNEG = 100mA
13.75
100
–8.05
13.50
V VIN = 3.6V
I IFB3
98
R FB1 = R VFB3 =1MΩ
13.25 R IFB3 =8.06kΩ
I VOUT1 = 50mA
96
–8.15
I VOUT3 = 20mA
13.00
–50 –25 0
25
50
75
100
94
125
–8.25
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
3587 G06
TEMPERATURE (°C)
3587 G07
3587fc
4
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