參數(shù)資料
型號(hào): MAX667ESA
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, PDSO8
封裝: SOP-8
文件頁數(shù): 8/8頁
文件大?。?/td> 78K
代理商: MAX667ESA
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
相關(guān)PDF資料
PDF描述
MAX667MJA +5V/Programmable Low-Dropout Voltage Regulator
MAX6680MEE Quadruple 2-Line To 1-Line Data Selector/Multiplexer With 3-State Outputs 16-CDIP -55 to 125
MAX6681 Quadruple 2-Line To 1-Line Data Selector/Multiplexer With 3-State Outputs 16-CFP -55 to 125
MAX6681MEE QUADRUPLE 2-INPUT POSITIVE-OR GATES 20-LCCC -55 to 125
MAX6680 Fail-Safe Remote/Local Temperature Sensors with SMBus Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX667ESA+ 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(dòng)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
MAX667ESA+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(dòng)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
MAX667ESA-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(dòng)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
MAX667MJA 功能描述:低壓差穩(wěn)壓器 - LDO 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(dòng)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
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(dòng)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