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参数资料
| 型号： | LT1612ES8#TR |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.5A 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 0.6V |
| 输入电压： | 2 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 800kHz |
| 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： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
LT1612
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25 ° C, VIN = VSHDN = 3V
SYMBOL PARAMETER
SHDN Pin Current
BOOST Pin Current
CONDITIONS
SHDN = 2V
SHDN = 5V
BOOST = V IN + 2V
q
q
MIN
TYP
10
30
4
MAX
15
45
UNITS
μ A
μ A
mA
Switch Current Limit (Note 4)
Duty Cycle = 0%
MODE = OV
MODE = 5V
600
550
710
650
900
900
mA
mA
Burst Mode Operation Current Limit
MODE = 0V
180
mA
Switch Voltage Drop
Rectifier Voltage Drop
SW Pin Leakage
I SW = 500mA
I RECT = 500mA
V SW = 5V, V SHDN = 0V
q
200
300
280
400
1
mV
mV
μ A
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1612E is guaranteed to meet performance specifications
from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Bias current flows out of the FB pin.
Note 4: Duty cycle affects current limit due to slope compensation.
TYPICAL PERFOR A CE CHARACTERISTICS
0.64
FB Voltage vs Temperature
190
Quiescent Current vs Temperature
0
FB Pin Bias Current
180
MODE = 0V
–2
0.63
0.62
0.61
0.60
170
160
150
140
130
120
110
–4
–6
–8
–10
–12
–14
–16
–18
0.59
– 50
–25
0 25 50
75
100
100
– 50
–25
0
25
50
75
100
–20
– 50
– 25
0
25
50
75
100
TEMPERATURE ( ° C)
1612 ? G01
TEMPERATURE ( ° C)
1612 ? G02
TEMPERATURE ( ° C)
1612 ? G03
sn1612 1612fs
3
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| LT1613CS5#TR | 功能描述:IC REG BST FLYBACK SEPIC TSOT23 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
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