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參數(shù)資料
| 型號： | CAT3200TDI-T3 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.2 A SWITCHED CAPACITOR REGULATOR, 2600 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 1 MM HEIGHT, ROHS COMPLIANT, MO-193, TSOT-23, 6 PIN |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 191K |
| 代理商： | CAT3200TDI-T3 |
CAT3200, CAT32005
http://onsemi.com
6
Block Diagram
Figure 15. CAT3200 Adjustable Output
Figure 16. CAT32005 5 V Fixed Output
+
EN
2 MHz
Voltage
Doubler
1.25 V
SGND
IN
5 V / 100 mA
OUT
PGND
FB
+
EN
2 MHz
Voltage
Doubler
300 k
100 k
1.25 V
GND
IN
5 V
100 mA
OUT
CNEG CPOS
2VIN
SHDN
SHDN
CNEG CPOS
2VIN
Pin Functions
IN is the power supply. During normal operation the device
draws a supply current which is almost constant. A very
brief interval of nonconduction will occur at the switching
frequency. The duration of the nonconduction interval is
set by the internal nonoverlapping “breakbeforemake”
timing. IN should be bypassed with a 1
mF to 4.7 mF low
ESR (Equivalent Series Resistance) ceramic capacitor
For filtering, a low ESR ceramic bypass capacitor (1
mF)
in close proximity to the IN pin prevents noise from being
injected back into the power supply.
SHDN is the logic control input (Active LOW) that places
the device into shutdown mode. The internal logic is CMOS
and the pin does not use an internal pulldown resistor. The
SHDN pin should not be allowed to float.
CPOS, CNEG are the positive and negative connections
respectively for the charge pump flying capacitor. A low
ESR ceramic capacitor (1
mF) should be connected between
these pins. During initial powerup it may be possible for the
capacitor to experience a voltage reversal and for this reason,
avoid using a polarized (tantalum or aluminum) flying
capacitor.
OUT is the regulated output voltage to power the load.
During normal operation, the device will deliver a train of
current pulses to the pin at a frequency of 2 MHz. Adequate
filtering on the pin can typically be achieved through the use
a low ESR ceramic bypass capacitor (1
mF to 4.7 mF) in close
proximity to the OUT pin. The ESR of the output capacitor
will directly influence the output ripple voltage.
When the shutdown mode is entered, the output is
immediately isolated from the input supply, however, the
output will remain connected to the internal feedback
resistor network (400 k
W). The feedback network will result
in a reverse current of 10
mA to 20 mA to flow back through
the device to ground.
Whenever the device is taken out of shutdown mode, the
output voltage will experience a slew rate controlled
powerup. Full operating voltage is typically achieved in
less than 0.5 msec.
GND is the ground reference for all voltages on CAT32005
devices.
FB (CAT3200 Only) is the feedback input pin. An output
divider should be connected from OUT to FB to program the
output voltage.
PGND (CAT3200 Only). Is the same as GND for the
CAT32005 except for the internal reference connection to
SGND.
SGND (CAT3200 Only) Ground pin for the internal
reference. The CNEG connection is switched to this pin
during the normal charge pump operation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT3200TDI-TE13 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:Low Noise Regulated Charge Pump DC-DC Converter |
| CAT3200TDI-TE7 | 功能描述:電荷泵 Lo-Noise Charge Pump 5V Fixed Output RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| CAT3200ZI-GT3 | 功能描述:電荷泵 DC-DC CHG PUMP VADJ 100mA RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| CAT3200ZI-T3 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 DC-DC,2X Charge Pump Vadj -100mA RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| CAT3200ZI-TE13 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:Low Noise Regulated Charge Pump DC-DC Converter |
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