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參數(shù)資料
| 型號： | MAX667MJA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | +5V/Programmable Low-Dropout Voltage Regulator |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.35 V DROPOUT, CDIP8 |
| 封裝： | CERAMIC, DIP-8 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大?。?/td> | 78K |
| 代理商： | MAX667MJA |
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8
___________________Maxim Integrated Produc ts, 120 S an Gabriel Drive, S unnyvale, CA 94086 (408) 737-7600
1994 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
M
+5V /Programmable Low-Dropout
Voltage Regulator
ratio (PSRR) is therefore not specified. Since the output
must be connected to a 10μF or larger filter capacitor,
the capacitor characteristics dominate the PSRR. Large
values of input and output capacitors reduce the ripple.
In addition, both DD and LBI/LBO can trigger on the
lowest DC component of the ripple, particularly at high
load currents. In the case of the low-battery detector,
the ripple can be effectively filtered out by placing a
capacitor to ground in parallel with the LBI input pin.
The high resistance values that can be used for the
voltage divider allow relatively small capacitance val-
ues to form an effective lowpass filter at 120Hz. When
power is first applied, however, this filter tends to hold
LBO low longer than normal.
T ransient Considerations
The low operating current and gain-bandwidth product
of the internal reference and amplifier result in limited
rejection of fast-step input changes. Negative-going
steps, which occur in under 100μs, may turn off the out-
put for several milliseconds. An input filter (nominally
10μF) is recommended if input changes greater than
1V and faster than 100μs (other than turn-on or turn-off)
are anticipated. Figure 12 shows the output response
to a 10mA/100mA instantaneous load step. The rela-
tionship between output-capacitor ESR and load-tran-
sient response is explained in the Output Capacitor
section.
___________________Chip Topography
OUTPUT
CURRENT
+5V OUTPUT
0.1V/div
100mA
10mA
200
μ
s/div
Figure 12. Output Response to 10mA/100mA Load Step with
10
μ
F Output Capacitor (1.5
ESR)
LBO
SET
LBI
OUT
DD
IN
SHDN
GND
0.107"
(2.71mm)
0.070"
(1.78mm)
TRANSISTOR COUNT: 65
SUBSTRATE MUST BE LEFT UNCONNECTED
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| MAX667MJA/883B | 功能描述:低壓差穩(wěn)壓器 - LDO 5V Programmable Voltage Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX667MSA/PR | 功能描述:低壓差穩(wěn)壓器 - LDO 5V Programmable Voltage Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX667MSA/PR-T | 功能描述:低壓差穩(wěn)壓器 - LDO 5V Programmable Voltage Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX6680MEE | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6680MEE+ | 功能描述:板上安裝溫度傳感器 Fail-Safe Temperature Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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