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参数资料
| 型号： | LTC1772BES6#TRM |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM SOT23-6 |
| 标准包装： | 1 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 650kHz |
| 占空比： | 100% |
| 电源电压： | 2.5 V ~ 9.8 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 剪切带 (CT) |
| 其它名称： | LTC1772BES6 LTC1772BES6#TRMCT LTC1772BES6-ND |
LTC1772B
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
Input Supply Voltage (V IN ) ......................... – 0.3V to 10V
SENSE – , PGATE Voltages ............... –0.3V to (V IN + 0.3V)
V FB , I TH /RUN Voltages............................... –0.3V to 2.4V
PGATE Peak Output Current (< 10μs) ........................ 1A
I TH /RUN 1
GND 2
V FB 3
TOP VIEW
6 PGATE
5 V IN
4 SENSE –
Storage Ambient Temperature Range..... – 65°C to 150°C
Operating Temperature Range (Note 2).... –40°C to 85°C
Junction Temperature (Note 3) ............................ 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
ORDER INFORMATION
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T JMAX = 150°C, θ JA = 230°C/W
LEAD FREE FINISH
LTC1772BES6#PBF
LTC1772BIS6#PBF
LEAD BASED FINISH
LTC1772BES6
LTC1772BIS6
TAPE AND REEL
LTC1772BES6#TRPBF
LTC1772BIS6#TRPBF
TAPE AND REEL
LTC1772BES6#TR
LTC1772BIS6#TR
PART MARKING*
LTVU
LTVU
PART MARKING*
LTVU
LTVU
PACKAGE DESCRIPTION
6-Lead Plastic TSOT Package
6-Lead Plastic TSOT Package
PACKAGE DESCRIPTION
6-Lead Plastic TSOT Package
6-Lead Plastic TSOT Package
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
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 IN = 4.2V unless otherwise speci?ed. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input DC Supply Current
Typicals at V IN = 4.2V (Note 4)
Normal Operation
Shutdown
UVLO
2.4V ≤ V IN ≤ 9.8V, PGATE Logic High
2.4V ≤ V IN ≤ 9.8V, V ITH /RUN = 0V
V IN < UVLO Threshold
270
8
6
420
22
10
μA
μA
μA
Undervoltage Lockout Threshold
V IN Falling
V IN Rising
l
1.55
1.85
2.00
2.10
2.35
2.40
V
V
Shutdown Threshold (at I TH /RUN)
Start-Up Current Source
V ITH /RUN = 0V
l
0.15
0.25
0.35
0.5
0.55
0.85
V
μA
Regulated Feedback Voltage
0°C to 70°C (Note 5)
–40°C to 85°C (Note 5)
l
l
0.780
0.770
0.800
0.800
0.820
0.830
V
V
Output Voltage Line Regulation
Output Voltage Load Regulation
2.4V ≤ V IN ≤ 9.8V (Note 5)
I TH /RUN Sinking 5μA (Note 5)
I TH /RUN Sourcing 5μA (Note 5)
0.05
2.5
2.5
mV/V
mV/μA
mV/μA
1772bfa
2
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