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參數(shù)資料
| 型號： | LTC1514-5 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Step-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator |
| 中文描述： | 降壓型開關(guān)電容DC / DC轉(zhuǎn)換與低電池比較 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 235K |
| 代理商： | LTC1514-5 |
7
LTC1514-3.3/LTC1514-5
APPLICATIO
S I
N
FOR
ATIO
U
resistor divider (see Figure 2). Since the low-battery
comparator is kept alive in shutdown, it may be used to
protect batteries against deep discharge by shutting
down the power supply when the battery voltage gets too
W
U
low. The open-drain comparator output allows for flex-
ible interfacing between the LBO output and external
logic. LBO pull-up resistors in the 50k to 1M range are
recommended.
TYPICAL APPLICATIO
N
S
N
3.3V Step-Up/Step-Down Supply with Power Good Output
1
2
3
4
8
7
6
5
SHDN
LBO
LBI
GND
V
OUT
V
IN
C1
+
C1
–
LTC1514-3.3
V
OUT
=
3.3V
±
4%
I
OUT
=
15mA, V
IN
> 2V
I
OUT
=
50mA, V
IN
> 3V
V
2V TO 8V
0.22
μ
F
499k
1%
10
μ
F
10
μ
F
806k
1%
100k
1514 TA05
ON OFF
POWER GOOD
3V V
TRIP
+
+
Low Power Battery Backup Supply with Autoswitchover and No Reverse Current
1
2
3
4
8
7
6
5
SHDN
LBO
LBI
GND
V
OUT
V
IN
C1
+
C1
–
LTC1514-5
5V BACKUP SUPPLY
I
OUT
= 15mA
0.1
μ
F
499k
MAIN
5V SUPPLY
10
μ
F
10
μ
F
3-CELL
NiCd BATTERY
TRICKLE CHARGE
AND LTC1514 I
DD
499k
1%
1.5M
1%
499k
1514 TA03
4.6V V
TRIP
TP0610T
+
+
BACKED-UP
CIRCUITRY
BAT54
1
2
3
4
8
7
6
5
SHDN
LBO
LBI
GND
V
OUT
V
IN
C1
+
C1
–
LTC1514-5
MBR0520L
0.22
μ
F
CHARGE PATH
499k
1%
3-CELL
NiCd
BATTERY
499k
1M
1%
6V
WALL
ADAPTER
INPUT
1514 TA06
EXTERNAL
POWER GOOD
5V
ON OFF
10
μ
F
+
22
μ
F
+
Battery/External Power Autoswitch Regulator
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1514CS8-3.3 | Step-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator |
| LTC1514CS8-5 | Step-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator |
| LTC1514IS8-3.3 | Step-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator |
| LTC1514IS8-5 | Step-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator |
| LTC1515CS8 | Step-Up/Step-Down Switched Capacitor DC/DC Converters with Reset |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1514CS8-3.3 | 功能描述:IC REG MULTI CONFIG 3.3V 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 |
| LTC1514CS8-3.3#PBF | 功能描述:IC REG MULTI CONFIG 3.3V 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: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 |
| LTC1514CS8-3.3#TR | 功能描述:IC REG MULTI CONFIG 3.3V 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 |
| LTC1514CS8-3.3#TRPBF | 功能描述:IC REG MULTI CONFIG 3.3V 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: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 |
| LTC1514CS8-5 | 功能描述:IC REG MULTI CONFIG 5V 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 |
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