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参数资料
型号： TC110333ECTRT
元件分类： 稳压器
英文描述： 0.1 A SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO5
封装： EIAJ, SC-74A, SOT-23A, 5 PIN
文件页数： 6/13页
文件大小： 93K
代理商： TC110333ECTRT
2
PFM/PWM Step-Up DC/DC Controller
TC110
TC110-2 5/24/99
2001 Microchip Technology Inc.
DS21355A
ABSOLUTE MAXIMUM RATINGS*
Voltage on VDD, VOUT, SHDN Pins ............ –0.3V to +12V
EXT Output Current ............................................
±100 mA
Voltage on EXT Pin ............................ –0.3V to VDD +0.3V
Power Dissipation ................................................ 150 mW
Operating Temperature ............................ –40
°C to +85°C
Storage Temperature ............................. –40
°C to +125°C
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent 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 operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ELECTRICAL CHARACTERISTICS: Note 1, TA = 25°C, VIN = 0.6V X VR, VDD = VOUT, unless otherwise noted.
Symbol Parameter
Test Conditions
Min
Typ
Max
Unit
VDD
Supply Voltage
Note 2
2.0
—
10.0
V
VSTART
Start-Up Supply Voltage
IOUT = 1mA
—
0.9
V
VHOLD-UP Oscillator Hold-Up Voltage
IOUT = 1mA
—
0.7
V
IDD
Boost Mode Supply Current
VOUT = SHDN = (0.95 x VR); fOSC = 300 KHz; VR = 3.0V
—
120
190
A
VR = 3.3V
—
130
200
A
VR = 5.0V
—
180
280
A
fOSC = 100 KHz; VR = 3.0V
—50
90
A
VR = 3.3V
—
50
100
A
VR = 5.0V
—
70
120
A
ISTBY
Standby Supply Current
VOUT = SHDN = (VR + 0.5V); fOSC = 300 KHz; VR = 3.0V
—20
34
A
VR = 3.3V
—20
35
A
VR = 5.0V
—22
38
A
fOSC = 100 KHz; VR = 3.0V
—11
20
A
VR = 3.3V
—11
20
A
VR = 5.0V
—11
22
A
ISHDN
Shutdown Supply Current
SHDN = GND, VO = (VR x 0.95)
—
0.05
0.5
A
fOSC
Oscillator Frequency
VOUT = SHDN = (0.95 x VR); fOSC = 300 KHz
255
300
345
KHz
fOSC = 100 KHz
85
100
115
KHz
VOUT
Output Voltage
Note 3
VR
V
x 0.975
x 1.025
DTYMAX Maximum Duty Cycle
VOUT = SHDN = 0.95 x VR
—
92
%
(PWM Mode)
DTYPFM Duty Cycle
IOUT = 0 mA
15
25
35
%
(PFM Mode)
VIH
SHDN Input Logic High
VOUT = (VR x 0.95)
0.65
—
V
VIL
SHDN Input Logic Low
VOUT = (VR x 0.95)
—
0.20
V
REXTH
EXT ON Resistance to VDD
VOUT = SHDN = (VR x 0.95); VR = 3.0V
—
32
47
VR = 3.3V
—
29
43
VEXT = (VOUT – 0.4V)
VR = 5.0V
—
20
29
REXTL
EXT ON Resistance to GND
VOUT = SHDN = (VR x 0.95); VR = 3.0V
—20
30
VR = 3.3V
—
19
27
VEXT = 0.4V
VR = 5.0V
—
13
19
η
Efficiency
—84
—
%
Notes: 1. For VR = 3.0V, IOUT = 120mA; For VR = 3.3V, IOUT = 130mA; For VR = 5.0V IOUT = 200 mA.
2. See Application Notes “Operating Mode” description for clarification.
3. VR is the factory output voltage setting.
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相关代理商/技术参数
参数描述
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