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參數(shù)資料
| 型號： | TC105333ECT |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | PFM/PWM Step-Down DC/DC Controller |
| 中文描述： | 烤瓷/ PWM降壓DC / DC控制器 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 433K |
| 代理商： | TC105333ECT |
TC105
DS21349B-page 2
2002 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Voltage on V
DD
.......................................-0.3V to +12V
EXT Output Current ........................................±100mA
Voltage on V
OUT
, EXT,
SHDN Pins.....................................-0.3V to V
DD
+0.3V
Power Dissipation.............................................150mW
Operating Temperature Range.............-40°C to +85°C
Storage Temperature Range..............-40°C to +125°C
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
TC105 ELECTRICAL SPECIFICATIONS
Electrical Characteristics:
Note 1, f
OSC
= 300 kHz; T
A
= 25°C, unless otherwise noted.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
V
DD
V
DD
MIN
Operating Supply Voltage
Minimum Input Voltage
2.2
0.9
—
—
10.0
2.2
V
V
EXT = High; No external components;
V
OUT
= 0V, SHDN = V
IN
No external components; V
R
= 3.0V, 3.3V
V
OUT
= 0V, SHDN = V
IN
No external components; V
R
= 3.0V, 3.3V
V
OUT
= SHDN = V
IN
SHDN = GND
V
IN
= V
OUT
+ 0.3V
Note 2
I
DD
Operating Supply Current
—
—
—
—
—
255
57
67
15
16
—
300
V
R
—
25
—
—
17
16
12
102
122
27
29
0.5
345
μ
A
V
R
= 5.0V
I
STBY
Standby Supply Current
μ
A
V
R
= 5.0V
I
SHDN
f
OSC
V
OUT
DTYMAX
DTYPFM
V
IH
V
IL
REXTH
Shutdown Supply Current
Oscillator Frequency
Output Voltage
Maximum Duty Cycle (PWM Mode)
Duty Cycle (PFM Mode)
SHDN Input Logic High
SHDN Input Logic Low
EXT ON Resistance to V
DD
μ
A
kHz
V
R
x 0.975
100
15
0.65
—
—
—
—
V
R
x 1.025
—
35
—
0.20
24
22
17
%
%
V
V
I
OUT
= 0mA
V
OUT
= 0V, No external components
V
OUT
= 0V, No external components
No external components; V
R
= 3.0V
V
R
= 3.3V
V
R
= 5.0V
V
OUT
= SHDN = V
IN
, V
EXT
= (V
IN
– 0.4V)
No external components; V
R
= 3.0V
REXTL
EXT ON Resistance to GND
—
—
—
15
14
10
20
19
14
V
R
= 3.3V
V
R
= 5.0V
V
OUT
= 0V, SHDN = V
IN
, V
EXT
= 0.4V
η
Efficiency
—
92
—
%
Note
1:
V
R
= 3.0V, V
IN
= 4.5V, I
OUT
= 200mA
V
R
= 3.3V, V
IN
= 5.0V, I
OUT
= 220mA
V
R
= 5.0V, V
= 7.5V, I
= 320mA
V
R
is the factory output voltage setting.
2:
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TC105333ECTTR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PFM/PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| TC1054 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output |
| TC1054_07 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output |
| TC1054_12 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output |
| TC1054-1.8VCT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:50mA, 100mA and 150mA CMOS LDOs with Shutdown and ERROR Output |
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