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| 型号： | CAT3200TDI-TE7 |
| 厂商： | ON Semiconductor |
| 文件页数： | 6/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BST SWITCHED CAP TSOT23-6 |
| 标准包装： | 1 |
| 类型： | 升压（升压），切换电容（充电泵） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.7 V ~ 6 V |
| 输入电压： | 2.7 V ~ 4.5 V |
| 频率 - 开关： | 2MHz |
| 电流 - 输出： | 100mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 标准包装 |
| 供应商设备封装： | TSOT-23-6 |
| 其它名称： | CAT3200TDI-TE7DKR |
CAT3200, CAT3200 ? 5
Block Diagram
CNEG
CPOS
CNEG
CPOS
IN
2 MHz
Voltage
Doubler
2V IN
IN
2 MHz
Voltage
Doubler
2V IN
SHDN
+
EN
SHDN
+
EN
SGND
1.25 V
?
PGND
5 V / 100 mA
OUT
FB
GND
1.25 V
?
100 k
300 k
5V
100 mA
OUT
Figure 15. CAT3200 Adjustable Output
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 non ? conduction will occur at the switching
frequency. The duration of the non ? conduction interval is
set by the internal non ? overlapping “break ? before ? make”
timing. IN should be bypassed with a 1 m F to 4.7 m F low
ESR (Equivalent Series Resistance) ceramic capacitor
For filtering, a low ESR ceramic bypass capacitor (1 m F)
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 th e pin does not use an internal pull ? down 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 m F) should be connected between
these pins. During initial power ? up 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
Figure 16. CAT3200 ? 5 5 V Fixed Output
a low ESR ceramic bypass capacitor (1 m F to 4.7 m F) 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 m A to 20 m A 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
power ? up. Full operating voltage is typically achieved in
less than 0.5 msec.
GND is the ground reference for all voltages on CAT3200 ? 5
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
CAT3200 ? 5 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.
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT3200ZI-GT3 | 功能描述:电荷泵 DC-DC CHG PUMP VADJ 100mA RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| CAT3200ZI-T3 | 功能描述:直流/直流开关转换器 DC-DC,2X Charge Pump Vadj -100mA RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| CAT3200ZI-TE13 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:Low Noise Regulated Charge Pump DC-DC Converter |
| CAT3200ZI-TE7 | 功能描述:电荷泵 Lo-Noise Charge Pump 5V Fixed Output RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| CAT3210HU2-GT3 | 制造商:ON Semiconductor 功能描述:Charge Pump |
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