參數(shù)資料
型號(hào)： MAX8860EUA28
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Low-Dropout, 300mA Linear Regulator in レMAX
中文描述： 2.82 V FIXED POSITIVE LDO REGULATOR, 0.22 V DROPOUT, PDSO8
封裝： MINIATURE, MICRO MAX PACKAGE-8
文件頁數(shù)： 6/8頁
文件大小： 137K
代理商： MAX8860EUA28
M
Low-Dropout, 300mA
Linear Regulator in μMAX
6
_______________________________________________________________________________________
Internal P-Channel Pass Transistor
The MAX8860 features a 0.5
typical P-channel
MOSFET pass transistor. This provides several advan-
tages over similar designs using PNP pass transistors,
including longer battery life. PNP-based regulators
waste considerable amounts of current in dropout when
the pass transistor saturates. They also use high base-
drive currents under large loads. The P-channel
MOSFET requires no base-drive current, which reduces
quiescent current considerably. The MAX8860 con-
sumes less than 165μA of quiescent current whether in
dropout, light-load, or heavy-load applications (see
Typical Operating Characteristics
).
Output Voltage Selection
The MAX8860 features Dual Mode operation: it operates
in either a preset voltage mode or an adjustable mode.
In preset voltage mode, internal, trimmed feedback
resistors set the output voltage to an adjustable +1.25V
to +6.5V output voltage or a fixed-voltage output of
+1.8V (MAX8860EUA18), +2.5V (MAX8860EUA25),
+2.77V (MAX8860EUA27), +2.82V (MAX8860EUA28),
+3.V (MAX8860EUA30), or +3.3V (MAX8860EUA33).
Select this mode by connecting SET to ground. In
adjustable mode, select an output between 1.25V and
6.5V using two external resistors connected as a voltage
divider to SET (Figure 2). Calculate the output voltage
with the following equation:
where V
SET
= 1.25V. To simplify resistor selection, use
the following equation:
R1
R2
V
V
1
OUT
SET
=
V
V
R
R
OUT
SET
=
+
1
1
2
SHUTDOWN
LOGIC
ERROR
AMP
1.25V
REF
P
OUT
CC
SET
FAULT
DUAL-MODE
COMPARATOR
60mV
GND
IN
SHDN
MAX8860
THERMAL
SENSOR
FAULT
DETECT
REVERSE
BATTERY
PROTECTION
MOS DRIVER
WITH I
LIMIT
Figure 1. Functional Diagram
Figure 2. Adjustable Output Using External Feedback
Resistors
MAX8860
OUT
SET
FAULT
GND
IN
SHDN
CC
C
OUT
2.2
μ
F
C
IN
2.2μF
33nF
BATTERY
OUTPUT
VOLTAGE
R1
R2
100k
相關(guān)PDF資料
PDF描述
MAX8860EUA30 Low-Dropout, 300mA Linear Regulator in レMAX
MAX8860EUA33 Low-Dropout, 300mA Linear Regulator in レMAX
MAX8860 Low-Dropout, 300mA Linear Regulator in レMAX
MAX8863TEUK-T Low-Dropout, 120mA Linear Regulators
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX8860EUA28+ 功能描述:低壓差穩(wěn)壓器 - LDO 300mA Linear 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
MAX8860EUA28+T 功能描述:低壓差穩(wěn)壓器 - LDO 300mA Linear 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
MAX8860EUA28-T 功能描述:低壓差穩(wěn)壓器 - LDO 300mA Linear 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
MAX8860EUA30 功能描述:低壓差穩(wěn)壓器 - LDO 300mA Linear 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
MAX8860EUA30+ 功能描述:低壓差穩(wěn)壓器 - LDO 300mA Linear 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
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