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參數(shù)資料
| 型號： | MAX1676EUB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | UMAX-10 |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 160K |
| 代理商： | MAX1676EUB |
M
High-Effic ienc y, Low-S upply-Current,
Compac t, S tep-Up DC-DC Converters
12
______________________________________________________________________________________
TRANSISTOR COUNT: 751
Chip Information
Pac kage Information
Optional External Rec tifier
Although not required, a Schottky diode (such as the
MBR0520) connected between LX and OUT allows
lower start-up voltages (Figure 10) and is recommend-
ed for single-cell operation. Note that adding this diode
provides no significant efficiency improvement.
PC Board Layout and Grounding
Careful printed circuit layout is important for minimizing
ground bounce and noise. Keep the IC’s GND pin and
the ground leads of the input and output filter capaci-
tors less than 0.2in (5mm) apart. In addition, keep all
connections to the FB and LX pins as short as possi-
ble. In particular, when using external feedback resis-
tors, locate them as close to the FB as possible. To
maximize output power and efficiency and minimize
output ripple voltage, use a ground plane and solder
the IC’s GND directly to the ground plane.
MAX1674
MAX1675
MAX1676
BATT
(MAX1676)
V
IN
SINGLE CELL
LBI
REF
GND
R3
R1
200
R4
R2
100k
22
μ
H
47
μ
F
0.1
μ
F
LX
LBO
FB
SHDN
OUT
LOW-BATTERY
OUTPUT
0.1
μ
F
MBR0520
47
μ
F
CLSEL
(MAX1676)
Figure 10. Adding a Schottky Diode for Single-Cell Operation
1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1676EUB+ | 功能描述:直流/直流開關轉(zhuǎn)換器 Compact Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT |
| MAX1676EUB+T | 功能描述:直流/直流開關轉(zhuǎn)換器 Compact Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT |
| MAX1676EUB-T | 功能描述:直流/直流開關轉(zhuǎn)換器 Compact Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT |
| MAX1676EVKIT | 功能描述:電源管理IC開發(fā)工具 Evaluation Kit for the MAX1676 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX1677EEE | 功能描述:直流/直流開關轉(zhuǎn)換器 Compact Step-Up & LCD Bias DC/DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT |
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