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參數(shù)資料
| 型號： | MAX1797 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Replaced by TMS320C6722B : Digital Signal Processor 144-QFP |
| 中文描述： | 低電流、升壓型DC-DC轉(zhuǎn)換器，可真正關(guān)斷 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 397K |
| 代理商： | MAX1797 |
M
Low Supply Current, Step-Up DC-DC Converters
with True-Shutdown
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(L = 22μH, C
IN
= 47μF, C
OUT
= 47μF, T
A
= +25
°
C, unless otherwise noted.)
0.800
0.850
0.825
0.900
0.875
0.925
0.950
0
1.0 1.5 2.0
0.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5
BATT VOLTAGE (V)
LOW-BATTERY INPUT THRESHOLD
vs. INPUT BATT VOLTAGE
L
M
INCREASING V
LBI
DECREASING V
LBI
0
50
100
150
200
250
0
1.5 2.0
BATT VOLTAGE (V)
0.5 1.0
2.5 3.0 3.5 4.0 4.5
MAX1795
MAXIMUM OUTPUT CURRENT
vs. BATT INPUT VOLTAGE
M
L
V
OUT
= +5.0V
V
OUT
= +3.3V
0.800
0.875
0.900
0.925
0.950
-40
10
-15
35
60
85
M
TEMPERATURE (
°
C)
L
LOW-BATTERY INPUT THRESHOLD
vs. TEMPERATURE
V
BATT
= +3.6V
INCREASING V
LBI
DECREASING V
LBI
0.850
0.825
0
100
200
300
400
500
0
1.5 2.0
BATT VOLTAGE (V)
0.5 1.0
2.5 3.0 3.5 4.0 4.5
MAX1796
MAXIMUM OUTPUT CURRENT
vs. BATT INPUT VOLTAGE
M
L
V
OUT
= +5.0V
V
OUT
= +3.3V
0
200
400
600
800
1000
0
1.5 2.0
BATT VOLTAGE (V)
0.5 1.0
2.5 3.0 3.5 4.0 4.5
M
L
MAX1797
MAXIMUM OUTPUT CURRENT
vs. BATT INPUT VOLTAGE
V
OUT
= +3.3V
V
OUT
= +5.0V
0
0.4
0.8
1.2
1.6
2.0
0
1.0 1.5
0.5
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
OUTPUT VOLTAGE (V)
OUT LEAKAGE CURRENT
vs. OUTPUT VOLTAGE
M
O
μ
A
SHDN = BATT
V
OUT
= +5V
V
BATT
= +2.4V
OUT BIASED WITH
EXTERNAL VOLTAGE
SOURCE
4.00
μ
s/div
HEAVY-LOAD SWITCHING WAVEFORMS
MAX1795/96/97 toc16
V
5V/div
I
INDUCTOR
500mA/div
V
(AC-COUPLED)
100mV/div
V
IN
= +3.6V
V
OUT
= +5.0V
I
LOAD
= 400mA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1795EUA | Low Supply Current, Step-Up DC-DC Converters with True-Shutdown |
| MAX1796EUA | Low Supply Current, Step-Up DC-DC Converters with True-Shutdown |
| MAX1797EUA | Low Supply Current, Step-Up DC-DC Converters with True-Shutdown |
| MAX1798 | Replaced by TMS320C6722B : Digital Signal Processor 144-QFP |
| MAX1798A | CDMA Cellular/PCS System Power Supplies |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1797EUA | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Low-Supply Current Step-Up DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1797EUA+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Low-Supply Current Step-Up DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1797EUA+ | 制造商:Maxim Integrated Products 功能描述:IC STEP-UP DC/DC CONVERTER MAX-8 |
| MAX1797EUA+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Low-Supply Current Step-Up DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1797EUA-T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Low-Supply Current Step-Up DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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