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參數(shù)資料
| 型號(hào)： | MAX604MJA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5V/3.3V or Adjustable, Low-Dropout, Low IQ, 500mA Linear Regulators |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.82 V DROPOUT, CDIP8 |
| 封裝： | CERDIP-8 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大小： | 134K |
| 代理商： | MAX604MJA |
M
air,
θ
J B
(or
θ
J C
) is the thermal resistance of the package
chosen, and
θ
BA
is the thermal resistance through the
printed circuit board, copper traces and other materials
to the surrounding air. The 8-pin SOIC package for the
MAX603/MAX604 features a special lead frame with a
lower thermal resistance and higher allowable power
dissipation. The thermal resistance of this package is
θ
J B
= 42°C/W, compared with
θ
J B
= 110°C/W for an 8-
pin plastic DIP package and
θ
J B
= 125°C/W for an 8-pin
ceramic DIP package.
The GND pins of the MAX603/MAX604 SOIC package
perform the dual function of providing an electrical con-
nection to ground and channeling heat away. Connect
all GND pins to ground using a large pad or ground
plane. Where this is impossible, place a copper plane
on an adjacent layer. The pad should exceed the
dimensions in Figure 4.
Figure 4 assumes the IC is an 8-pin SOIC package, is
soldered directly to the pad, has a +125°C maximum
junction temperature and a +25°C ambient air tempera-
ture, and has no other heat sources. Use larger pad
sizes for other packages, lower junction temperatures,
higher ambient temperatures, or conditions where the IC
is not soldered directly to the heat-sinking ground pad.
The MAX603/MAX604 can regulate currents up to
500mA and operate with input voltages up to 11.5V, but
not simultaneously. High output currents can only be
sustained when input-output differential voltages are
low, as shown in Figure 5. Maximum power dissipation
depends on packaging, board layout, temperature, and
air flow. The maximum output current is:
P
OUT max
where P
MAX
is derived from Figure 4.
Reverse-Current Protec tion
The MAX603/MAX604 has a unique protection scheme
that limits reverse currents when the input voltage falls
below the output. It monitors the voltages on IN and
OUT and switches the IC’s substrate and power bus to
I
T - T
)
×
V - V
100 C
MAX
A
OUT
)
=
×
)
(
5V /3.3V or Adjustable, Low-Dropout,
Low I
Q
, 500mA Linear Regulators
8
_______________________________________________________________________________________
0
100
200
300
400
500
600
700
2
7
MAX604
M
SUPPLY VOLTAGE (V)
M
5
3
9
8
10
12
11
6
4
13
CERAMIC DIP
PLASTIC DIP
HIGH-POWER SOIC
M
T
MAXIMUM CONTINUOUS CURRENT LIMIT
OPERATING
REGION AT
T
A
= +25°C
T
J
= +125°C
0
100
200
300
400
500
600
700
7
MAX603
MAXIMUM OUTPUT CURRENT vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
M
5
9
8
10
12
11
6
4
13
CERAMIC DIP
PLASTIC DIP
HIGH-POWER
SOIC
M
T
MAXIMUM CONTINUOUS CURRENT LIMIT
OPERATING
REGION AT
T
A
= +25°C
T
J
= +125°C
Figure 5. Power Operating Regions: Maximum Output Current
vs. Differential Supply Voltage
1.0
1
0.2
1.3
10
65
20
130
6.5
(in
2
)
(cm
2
)
POWER DISSIPATION vs.
GROUND PAD AREA
1.2
M
COPPER GROUND PAD AREA
P
1.4
1.6
1.8
1.1
1.3
1.5
1.7
MAX603, V
OUT
= 5V
8-PIN SO PACKAGE
PAPER EPOXY BOARD
SINGLE SIDED
1oz. COPPER
T
J
= +125°C
T
A
= +25°C STILL AIR
Figure 4. Typical Maximum Power Dissipation vs. Ground Pad
Size.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX604MJA/PR-W | 制造商:Maxim Integrated Products 功能描述:5V OR ADJUSTABLE, LOW-DROPOUT, LOW IQ, 500MA - Rail/Tube |
| MAX604MJA+ | 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 |
| MAX604MPA/PR-W | 制造商:Maxim Integrated Products 功能描述:5V OR ADJUSTABLE, LOW-DROPOUT, LOW IQ, 500MA - Rail/Tube |
| MAX6050 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Precision, Low-Power, Low-Dropout, |
| MAX6050AEUR | 制造商:Maxim Integrated Products 功能描述:PRECISION LOW-POWER LOW-DROPOUT - Bulk |
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