参数资料
| 型号： | LT3587EUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24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： | 无 |
| 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
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V VIN = 3.6V, V EN/SS1 = V EN/SS3 = V VIN unless otherwise noted (Note 2, 3).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Boost1
CAP1 Bias Current
V CAP1 = 15V, V OUT1 = Open
60
150
μA
FB1 Reference Voltage
l
1.19
1.22
1.25
V
V OUT1 Output Voltage
R FB1 = 1MΩ
l
14.25
15
15.75
V
SW1 Current Limit
SW1 V CESAT
I SW1 = 400mA
800
990
200
mA
mV
SW1 Leakage Current
V SW1 = 15V
0.1
5
μA
EN/SS1 for Full Inductor Current
EN/SS1 Shutdown Voltage Threshold
V FB1 = 1.1V, V FB2 = 0.1V
l
0.2
2.5
V
V
EN/SS1 Pin Bias Current
V OUT1 Current Limit
CAP1 to V OUT1 On-Resistance (R DISC1 )
V OUT1 Disconnect Leakage
V EN/SS1 = 0V
V CAP1 = 15V
V CAP1 = 15V, I VOUT1 = 50mA
V VIN = V CAP1 = 6V, V VOUT1 = 0V
–0.5
100
–1
155
5
0.1
–1.5
8
1
μA
mA
Ω
μA
Inverter
FB2 Reference Voltage
l
–10
5
20
mV
Output Voltage
R FB2 = 1MΩ
l
–7.5
–8
–8.5
V
SW2 Current Limit
SW2 V CESAT
I SW2 = 600mA
900
1090
250
mA
mV
SW2 Leakage Current
FB1 Threshold to Start Negative Channel
V SW2 = 15V
Percent of Final Regulation Value
0.1
87
5
90
μA
%
Boost3
CAP3 Bias Current
V CAP3 = 15V, V OUT3 = Open
70
150
μA
Boost3 Programmed Current
V FB3 Reference Voltage
V OUT3 Output Voltage
R IFB3 = 8.06kΩ
R VFB3 = 1MΩ, I VOUT3 = 20mA
R VFB3 = 1MΩ, I VOUT3 = 20mA
l
l
l
18
0.77
14
20
0.8
15
22
0.83
16
mA
V
V
SW3 Current Limit
SW3 V CESAT
I SW3 = 200mA
400
480
250
mA
mV
SW3 Leakage Current
V SW3 = 15V
0.1
5
μA
EN/SS3 for Full Inductor Current
EN/SS3 Shutdown Voltage Threshold
V VFB3 = V IFB3 = 0.6V
l
0.2
2
V
V
EN/SS3 Pin Bias Current
V OUT3 Current Limit
V EN/SS3 = 0V
V CAP3 = 15V, V IFB3 = 0V
–0.5
70
–1
110
–1.5
μA
mA
CAP3 to V OUT3 On Resistance (R DISC3 )
V OUT3 Disconnect Leakage
CAP3 Pin Overvoltage Clamp
V CAP3 = 15V, I VOUT3 = 20mA
V VIN = V CAP3 = 6V, V VOUT3 = 0V
27
10
0.1
29
15
1
31
Ω
μA
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3: The LT3587 is guaranteed to meet speci?ed performance from
0°C to 125°C. Speci?cations over the –40°C to 125°C operating range are
assured by design, characterization and correlation with statistical process
controls.
3587fc
3
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