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參數(shù)資料
| 型號(hào)： | LTC1174CN8-3.3 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Efficiency Step-Down and Inverting DC/DC Converter |
| 中文描述： | 1 A SWITCHING REGULATOR, 200 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大?。?/td> | 353K |
| 代理商： | LTC1174CN8-3.3 |
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3
LTC1174
LTC1174-3.3/LTC1174-5
ELECTRICAL C
HARA TERISTICS
T
A
= 25
°
C, V
IN
= 9V, V
SHUTDOWN
= V
IN
, I
PGM
= 0V, unless otherwise noted.
–40
°
C
≤
T
A
≤
85
°
C (Note 6), for LTC1174I only.
SYMBOL PARAMETER
V
FB
Feedback Voltage
I
LBOUT
Current Sunk by Pin 2
I
PEAK
Current Limit
CONDITIONS
LTC1174I
V
LBOUT
= 0.4
I
PGM
= V
IN
, V
OUT
= 0V
I
PGM
= 0V, V
OUT
= 0V
V
OUT
at Regulated Value
MIN
1.18
0.75
0.54
TYP
1.25
1.2
0.60
0.34
4
MAX
1.31
2
0.78
UNITS
V
mA
A
A
t
OFF
Switch Off-Time (Note 5)
2
6
μ
s
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formulas:
LTC1174CN8, LTC1174CN8-3.3, LTC1174CN8-5:
T
J
= T
A
+ (P
D
×
110
°
C/W)
LTC1174CS8, LTC1174CS8-3.3, LTC1174CS8-5:
T
J
= T
A
+ (P
D
×
150
°
C/W)
Note 2:
Guaranteed by design.
Note 3:
Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 4:
Current into pin 6 only, measured without electrolytic input
capacitor.
Note 5:
The off-time is wafer-sort trimmed.
Note 6:
The LTC1174I is not tested and not quality assurance sampled at
–40
°
C and 85
°
C. These specifications are guaranteed by design and/or
correlation.
SYMBOL PARAMETER
I
Q
Input DC Supply Current (Note 3)
CONDITIONS
Active Mode
LTC1174: 4V < V
IN
< 12V, I
PGM
= 0V
LTC1174HV: 4V < V
IN
< 16V, I
PGM
= 0V
Sleep Mode
LTC1174: 4V < V
IN
< 12V
LTC1174HV: 4V < V
IN
< 16V
SHUTDOWN (Note 4)
LTC1174: V
SHUTDOWN
= 0V, 4V < V
IN
< 12V
LTC1174HV: V
SHUTDOWN
= 0V, 4V < V
IN
< 16V
MIN
TYP
MAX
UNITS
450
450
600
600
μ
A
μ
A
130
130
180
180
μ
A
μ
A
1
2
10
25
1.4
0.5
1.5
1.5
30
0.78
0.50
1.30
1.55
5
μ
A
μ
A
V
μ
A
mA
mA
mV
V
LBTRIP
I
LBIN
I
LBOUT
Low-Battery Trip Point
Current into Pin 3
Current Sunk by Pin 2
1.25
LTC1174: V
LBOUT
= 0.4V
LTC1174HV: V
LBOUT
= 0.4V
LTC1174/LTC1174HV
I
PGM
= V
IN
, V
OUT
= 0V
I
PGM
= 0V, V
OUT
= 0V
LTC1174
LTC1174HV
V
OUT
at Regulated Value
Minimum Voltage at Pin 8 for Device to Be Active
Maximum Voltage at Pin 8 for Device to Be in Shutdown
LTC1174: V
SHUTDOWN
= 12V
LTC1174HV: V
SHUTDOWN
= 16V
0
≤
V
SHUTDOWN
≤
0.8V
1.0
0.6
7.5
0.54
0.27
1.2
0.8
15
0.60
0.34
0.75
0.90
4
V
HYST
I
PEAK
Comparator Hysteresis
Current Limit
G
G
A
A
μ
s
V
V
μ
A
R
ON
ON Resistance of Switch
G
G
t
OFF
V
IH
V
IL
I
IH
Switch Off-Time (Note 5)
SHUTDOWN Pin High
SHUTDOWN Pin Low
SHUTDOWN Pin Input Current
3
1.2
0.75
0.5
2.0
0.5
I
IL
SHUTDOWN Pin Input Current
μ
A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1174CN8-5 | High Efficiency Step-Down and Inverting DC/DC Converter |
| LTC1174CS8-3.3 | High Efficiency Step-Down and Inverting DC/DC Converter |
| LTC1174CS8-5 | High Efficiency Step-Down and Inverting DC/DC Converter |
| LTC1174IS8 | High Efficiency Step-Down and Inverting DC/DC Converter |
| LTC1174HVCS8 | High Efficiency Step-Down and Inverting DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1174CN8-5 | 功能描述:IC REG BUCK INV 5V 1A 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC1174CN8-5#PBF | 功能描述:IC REG BUCK INV 5V 1A 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC1174CN8-5PBF | 制造商:Linear Technology 功能描述:Inverting dc-dc converter,LTC1174CN8-5 |
| LTC1174CS8 | 功能描述:IC REG BUCK INV ADJ 1A 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC1174CS8#PBF | 功能描述:IC REG BUCK INV ADJ 1A 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
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