参数资料
型号: LTC3459EDCB#TRPBF
厂商: Linear Technology
文件页数: 4/12页
文件大小: 0K
描述: IC REG BOOST SYNC ADJ 6DFN
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.5 V ~ 10 V
输入电压: 1.5 V ~ 5.5 V
PWM 型: Burst Mode?
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: 6-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 6-DFN-EP(2x3)
LTC3459
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C, unless otherwise noted).
Minimum R OUT vs V IN
Maximum P OUT vs V IN
V IN and V OUT Quiescent Current
vs Temperature
4000
3500
3000
V OUT = 10V
V OUT = 7.5V
V OUT = 5V
V OUT = 3.3V
L = 22μH
400
350
300
V OUT = 10V
V OUT = 7.5V
V OUT = 5V
V OUT = 3.3V
L = 22μH
16
V IN = 3.3V
14 V OUT = 5V
12
I IN
2500
2000
1500
1000
250
200
150
100
10
8
6
4
500
50
2
I OUT
0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
–40
–20
0 20 40
60
80
V IN (V)
Switching Frequency
vs V IN at Various V OUTs
3459 G01
V IN (V)
3459 G02
V OUT Regulation vs V IN and C OUT
TEMPERATURE (°C)
3459 G03
N-Channel and P-Channel
MOSFET R DS(ON) vs Temperature
3.0
V OUT = 10V
2.0
4.7μF
6
V OUT = 5V
2.5
2.0
V OUT = 7.5V
V OUT = 5V
V OUT = 3.3V
L = 22μH
1.5
1.0
0.5
10μF
22μF
47μF
V OUT = 5V
L = 22μH
5
4
PCH
NCH
0
3
1.5
1.0
–0.5
–1.0
–1.5
2
1
0.5
1.5
2
2.5
3
3.5
4
4.5
5
5.5
–2.0
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
–40
–20
0
20
40
60
80
1.2
V IN (V)
Shutdown Threshold Voltage
vs Temperature
3459 G04
Burst Cycle
V IN (V)
3459 G05
TEMPERATURE (°C)
Switch Pin Waveform
3459 G06
1.0
0.8
SHDN RISING
SW
CURRENT
50mA/DIV
SW
CURRENT
50mA/DIV
SHDN FALLING
0.6
0.4
INDUCTOR
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
0.2
V IN = 3.3V
1μs/DIV
3459 G08
V IN = 3.3V
100ns/DIV
3459 G09
V OUT = 5V
V OUT = 5V
0
L = 22μH
L = 22μH
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
3459 G07
3459fc
4
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