参数资料
型号: LTC3601EMSE#PBF
厂商: Linear Technology
文件页数: 4/26页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 1.5A 16MSOP
标准包装: 37
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.5 V ~ 14.52 V
输入电压: 4 V ~ 15 V
PWM 型: 电流模式,混合
频率 - 开关: 800kHz ~ 4MHz
电流 - 输出: 1.5A
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-TFSOP(0.118",3.00mm 宽)裸露焊盘
包装: 管件
供应商设备封装: 16-MSOP,裸露焊盘
产品目录页面: 1335 (CN2011-ZH PDF)

LTC3601
ELECTRICAL CHARACTERISTICS
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: The LTC3601 is tested under pulsed load conditions such that
T J ≈ T A . The LTC3601E is guaranteed to meet speci?cations from
0°C to 85°C junction temperature. Speci?cations over the –40°C to
125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTC3601I is guaranteed over the full –40°C to 125°C operating junction
temperature range. Note that the maximum ambient temperature
consistent with these speci?cations is determined by speci?c operating
conditions in conjunction with board layout, the rated package thermal
impedance and other environmental factors.
Note 3: T J is calculated from the ambient temperature, T A , and power
dissipation, P D , according to the following formula:
T J = T A + (P D ? θ JA )
where θ JA = 45°C/W for the QFN package and θ JA = 38°C/W for the MSOP
package.
Note 4: Maximum allowed current draw when used as a regulated output
is 5mA. This supply is only intended to provide additional DC load current
as needed and not intended to regulate large transient or ac behavior as
these waveforms may impact LTC3601 operation.
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C, V IN = 12V, f O = 1MHz, L = 2.2μH unless otherwise noted.
Ef?ciency vs Load Current
Ef?ciency vs Load Current
Burst Mode Operation
Forced Continuous Mode
Ef?ciency vs Load Current
100
90
V OUT = 1.8V
100
90
V OUT = 1.8V
100
90
BURST
80
80
80
70
60
50
40
30
70
60
50
40
30
70
60
50
40
30
FORCED
CONTINUOUS
20
V IN = 4V
20
V IN = 4V
20
10
0
V IN = 8V
V IN = 12V
10
0
V IN = 8V
V IN = 12V
10
0
V OUT = 3.3V
V OUT = 5V
0.001
0.01
0.1 1
10
0.001
0.01
0.1 1
10
0.001
0.01
0.1 1
10
LOAD CURRENT (A)
Ef?ciency vs Input Voltage
Burst Mode Operation
3601 G01
LOAD CURRENT (A)
Ef?ciency vs Frequency
Forced Continuous Mode
3601 G02
LOAD CURRENT (A)
Reference Voltage vs
Temperature
3601 G03
100
92
V OUT =1.8V
0.605
95
90
85
I LOAD = 100mA
I LOAD = 500mA
I LOAD = 1.5A
90
88
I LOAD = 500mA
L = 2.2μH
0.603
0.601
80
86
75
I LOAD = 10mA
L = 1μH
0.599
84
70
65 V OUT = 1.8V
FIGURE 7 CIRCUIT
82
0.597
60
4
6 8
10
12
14
16
80
0.5
1.0
1.5 2.0
2.5
3.0
0.595
–50
–25
0
25
50
75
100
125
INPUT VOLTAGE (V)
3601 G04
FREQUENCY (MHz)
3601 G05
TEMPERATURE (°C)
3601 G06
3601fb
4
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