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参数资料
| 型号： | LTC3532EMS#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BST SYNC 0.5A 10MSOP |
| 标准包装： | 50 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.4 V ~ 5.25 V |
| 输入电压： | 2.4 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 300kHz ~ 2MHz |
| 电流 - 输出： | 500mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 10-MSOP |
| 产品目录页面： | 1335 (CN2011-ZH PDF) |
LTC3532
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = V OUT = 3.6V, R T = 64.9k, unless otherwise speci?ed.
PARAMETER
PMOS Switch Leakage
NMOS Switch On Resistance
PMOS Switch On Resistance
Input Current Limit
CONDITIONS
Switches A and D
Switches B and C
Switches A and D
MIN
0.8
TYP
0.1
0.36
0.42
1.1
MAX
10
1.45
UNITS
μA
Ω
Ω
A
Maximum Duty Cycle
Boost (% Switch C On)
●
70
88
%
Minimum Duty Cycle
Buck (% Switch A On)
●
●
100
0
%
%
Frequency Accuracy
●
575
740
885
kHz
Burst Threshold (Falling)
Burst Threshold (Rising)
0.88
1.12
V
V
Burst Current Ratio
Ratio of I OUT to I BURST
8000
Error Amp AVOL
90
dB
Error Amp Source Current
Error Amp Sink Current
V C = 1.4V
V C = 2V
15
310
μA
μA
SHDN /SS Threshold
When IC is Enabled
●
0.4
1
1.5
V
When EA is at Maximum Boost Duty Cycle
2.2
V
SHDN /SS Input Current
V SHDN = 5.5V
0.01
1
μA
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 LTC3532E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlations
with statistical process controls.
Note 3: Current measurements are performed when the outputs are not
switching.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may result in device degradation or failure.
TYPICAL PERFOR A CE CHARACTERISTICS
T A = 25°C, unless otherwise speci?ed.
Ef?ciency and Power Loss
vs Load Autoburst Mode
Ef?ciency and Power Loss
vs Load
Fixed Frequency and Burst Mode
Quiescent Current vs V IN
100
1000
100
1000
3.0
80
90
80
EFFICIENCY
100
10
90 BURST EFFICIENCY
80
100
2.5
2.0
1000kHz
2000kHz
1500kHz
75
70
65
V OUT = 3.3V
60
0.1
70
60
50
40
0.1 1
POWER LOSS
10 100
1
0.1
3V
3.6V
4.2V
0.01
1000
70
50
40
BURST
POWER LOSS
0.1 1
FIXED FREQUENCY
POWER LOSS
FIXED FREQUENCY
EFFICIENCY
10 100 1000
10
1
1.5
1.0
0.5
0
BURST MODE
2.5 3.5
NOT SWITCHING
4.5
500kHz
5.5
60
55
50
45
40
LOAD CURRENT (mA)
3532 G01
LOAD CURRENT (mA)
3532 G02
V IN (V)
3532 G03
3532fc
3
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| LTC3533EDE#PBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 14DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
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