參數(shù)資料
型號(hào)： TC1188
廠商： Microchip Technology Inc.
英文描述： MAX8863/64 Pin Compatible, Low Dropout, 120 mA Linear Regulators
中文描述： MAX8863/64引腳兼容，低壓差，120毫安線性穩(wěn)壓器
文件頁(yè)數(shù)： 7/16頁(yè)
文件大?。?/td> 301K
代理商： TC1188
2002 Microchip Technology Inc.
DS21364B-page 7
TC1188/TC1189
FIGURE 3-2:
Functional Block Diagram.
3.4
Shutdown
The SHDN input is used to turn off the LDO P-Channel
pass MOSFET and internal bias. When shutdown, the
typical quiescent current consumed by the LDO is
0.1 nA. A logic low (< 0.4V) at the SHDN input will
cause the device to operate in the shutdown mode. A
logic high (> 2.0V) at the SHDN input will cause the
device to operate in the normal mode.
3.5
Current Limit
The LDO output current is monitored internal to the
TC1188/TC1189. The internal current sense will limit
the LDO output current to a typical value of 280 mA.
The current limit can range from approximately 50 mA
to 410 mA from device to device. The internal current
limit protects the device from a continuous output short
circuit.
3.6
Thermal Overload Protection
Integrated thermal protection circuitry shuts the
TC1188/TC1189 off when the internal die temperature
exceeds approximately 170°C. The regulator output
remains off until the internal die temperature drops to
approximately 150°C.
3.7
Operating Region and Power
Dissipation
The internal power dissipation to the LDO is primarily
determined by the input voltage, output voltage and
output current. The following equation is used to
approximate the worst case for power dissipation:
EQUATION
The maximum power dissipation is a function of the
maximum ambient temperature, T
A(MAX)
, the maximum
junction temperature, T
J(MAX)
, and the package thermal
resistance from junction to air,
θ
JA
. The 5-Pin SOT23A
package has a
θ
JA
of approximately 220°C/Watt.
EQUATION
Bandgap
Reference
MOS Driver
W
ith
I
LIMIT
Thermal
Sensor
Shutdown
Logic
Error
Amplifier
+
–
V
IN
SHDN
GND
V
OUT
PMOS Pass
Transistor
GND
N
(TC1189 Only)
P
D
= V
IN(MAX)
- V
OUT(MIN)
x I
LOAD(MAX)
Where:
P
D
= Worst case internal power dissipation.
V
IN
(
MAX
)
= Maximum input voltage.
V
OUT
(
MIN
)
= Minimum output voltage.
I
LOAD
(
MAX
)
= Maximum output current.
P
D
= (T
J(MAX)
- T
A(MAX)
)/
θ
JA
Where all terms are previously defined.
相關(guān)PDF資料
PDF描述
TC1189 MAX8863/64 Pin Compatible, Low Dropout, 120 mA Linear Regulators
TC12-11YWA Coaxial Cable; Coaxial RG/U Type:59; Impedance:75ohm; Conductor Size AWG:25; No. Strands x Strand Size:Solid; Jacket Material:Polyethylene; Capacitance:16.9pF/ft; Conductor Material:Copper; Jacket Color:Yellow RoHS Compliant: Yes
TC12-11GWA 30 MM 5 X 7 DOT MATRIX DISPLAYS
TC12-11SRWA 30 MM 5 X 7 DOT MATRIX DISPLAYS
TC12-11EWA 30 MM 5 X 7 DOT MATRIX DISPLAYS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC-1188 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:MAX8863/64 Pin Compatible, Low Dropout, 120 mA Linear Regulators
TC1188_13 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:MAX8863/64 Pin Compatible, Low Dropout, 120 mA Linear Regulators
TC1188QECTTR 功能描述:低壓差穩(wěn)壓器 - LDO 1.80V 100mA MAX8863/ 64 Pin Comp 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
TC1188RECTTR 功能描述:低壓差穩(wěn)壓器 - LDO 2.80V 100mA MAX8863/ 64 Pin Comp 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
TC1188SECTTR 功能描述:低壓差穩(wěn)壓器 - LDO 2.84V 100mA MAX8863/ 64 Pin Comp 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
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