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参数资料
| 型号： | TC1219ECHTR |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 20 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | EIAJ, SC-74, SOT-23A, 6 PIN |
| 文件页数： | 9/16页 |
| 文件大小： | 482K |
| 代理商： | TC1219ECHTR |
TC1219/TC1220
DS21366B-page 2
2002 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Input Voltage (VIN to GND)....................... +6.0V, -0.3V
Output Voltage (OUT to GND).................. -6.0V, +0.3V
Current at OUT Pin..............................................50mA
Short-Circuit Duration – OUT to GND ............Indefinite
Power Dissipation (TA ≤ 70°C)
6-Pin SOT-23A .........................................240mW
Operating Temperature Range............. -40°C to +85°C
Storage Temperature (Unbiased) .......-65°C to +150°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.
TC1219/TC1220 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = -40°C to +85°C, VIN = +5V, C1 = C2 = 10F, (TC1219), C1 = C2 = 3.3F (TC1220), TA = 25°C
unless otherwise noted.
Symbol
Parameter
Min
Typ
Max
Units
Device
Test Conditions
IDD
Supply Current
—
60
115
325
A
TC1219
TC1220
ISHDN
Shutdown Supply Current
—
0.1
1.0
A
SHDN = GND, VIN = 5V (Note 2)
VMIN
Minimum Supply Voltage
2.5
——
VRLOAD = 1k
VMAX
Maximum Supply Voltage
——
5.5
V
RLOAD = 1k
FOSC
Oscillator Frequency
6
19
12
35
20
56.3
kHz
TC1219
TC1220
VIH
SHDN Input Logic High
—
1.5
1.8
1.5
—
V
TC1219
TC1220
RLOAD = ∞
VIN = VMIN to 3V
VIN = >3V to VMAX
VIN = VMIN to VMAX
VIL
SHDN Input Logic Low
——
0.5
V
VIN = VMIN to VMAX
PEFF
Power Efficiency
—
96
95
—
%RLOAD = 1k
VEFF
Voltage Conversion Efficiency
95
99.9
—
%RLOAD = ∞
ROUT
Output Resistance
—
25
65
TC1219/TC1220
ILOAD = 0.5mA to 25mA (Note 1)
Note
1:
Capacitor contribution is approximately 20% of the output impedance [ESR = 1/ pump frequency x capacitance].
2:
VIN is guaranteed to be disconnected from OUT when the converter is in shutdown..
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