参数资料
型号: LTC1772HS6#TRMPBF
厂商: Linear Technology
文件页数: 2/12页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM SOT23-6
标准包装: 500
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:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 140°C
封装/外壳: SOT-23-6 细型,TSOT-23-6
包装: 带卷 (TR)
LTC1772
LTC1772ES6
I TH /RUN 1 LTC1772IS6
5 V IN LTC1772HS6
LTIM
ABSOLUTE MAXIMUM RATINGS
(Note 1)
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 (<10 μ s) ......................... 1A
Storage Ambient Temperature Range ... – 65 ° C to 150 ° C
Operating Temperature Range
LTC1772CS6 ........................................... 0 ° C to 70 ° C
LTC1772ES6 (Note 2) ........................ – 40 ° C to 85 ° C
LTC1772IS6 (Note 2) ......................... – 40 ° C to 85 ° C
LTC1772HS6 (Notes 2,3) ................. – 40 ° C to 140 ° C
Junction Temperature (Note 3) ............................. 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
PACKAGE/ORDER I N FOR M ATIO N
ORDER PART NUMBER
LTC1772CS6
TOP VIEW
6 PGATE
GND 2
V FB 3 4 SENSE –
S6 PART MARKING
S6 PACKAGE
6-LEAD PLASTIC SOT-23 LTIL
θ JA = 230 ° C/ W
LTB7
LTBRY
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes specifications that apply over the full operating temperature
range, otherwise specifications are at T A = 25 ° C. V IN = 4.2V unless otherwise specified. (Note 2)
PARAMETER
Input DC Supply Current
Normal Operation
Sleep Mode
Shutdown
UVLO
CONDITIONS
Typicals at V IN = 4.2V (Note 4)
2.4V ≤ V IN ≤ 9.8V
2.4V ≤ V IN ≤ 9.8V
2.4V ≤ V IN ≤ 9.8V, V ITH /RUN = 0V
V IN < UVLO Threshold
MIN
TYP
270
230
8
6
MAX
420
370
22
10
UNITS
μ A
μ A
μ A
μ A
Undervoltage Lockout Threshold
Shutdown Threshold (at I TH /RUN)
Start-Up Current Source
Regulated Feedback Voltage
V IN Falling (LTC1772C)
V IN Falling (LTC1772E, LTC1772I, LTC1772H)
V IN Rising
(LTC1772C)
(LTC1772E, LTC1772I, LTC1772H)
V ITH /RUN = 0V
(Note 5) (LTC1772C)
(Note 5) (LTC1772E, LTC1772I, LTC1772H)
1.60
1.55
1.85
0.20
0.15
0.25
0.780
0.770
2.00
2.00
2.10
0.35
0.35
0.5
0.800
0.800
2.30
2.35
2.40
0.50
0.55
0.85
0.820
0.830
V
V
V
V
V
μ A
V
V
Output Voltage Line Regulation
Output Voltage Load Regulation
2.4V ≤ V IN ≤ 9.8V (Note 5)
I TH /RUN Sinking 5 μ A (Note 5)
I TH /RUN Sourcing 5 μ A (Note 5)
0.05
2.5
2.5
mV/V
mV/ μ A
mV/ μ A
V FB Input Current
(Note 5)
10
50
nA
Overvoltage Protect Threshold
Measured at V FB
0.820
0.860
0.895
V
Overvoltage Protect Hysteresis
20
mV
Oscillator Frequency
V FB = 0.8V
500
550
650
kHz
V FB = 0V
120
kHz
Gate Drive Rise Time
Gate Drive Fall Time
Peak Current Sense Voltage
C LOAD = 3000pF
C LOAD = 3000pF
(Note 6)
40
40
120
ns
ns
mV
1772fb
2
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LTC1772IS6#TR 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 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 ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LTC1772IS6#TRM 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 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 ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
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