Quick Detail:
Switched Capacitor Voltage Converters
Description:
The TCM828/829 are CMOS “charge-pump” voltage converters in ultra-small 5-Pin SOT-23A packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%.
Switching frequency is 12kHz for the TCM828 and 35kHz for the TCM829.
External component requirement is only two capacitors (3.3µF nominal) for standard voltage inverter applications.
With a few additional components a positive doubler can also be built. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Supply current is 50µA (TCM828) and 115µA (TCM829).
The TCM828 and TCM829 are available in a 5-Pin SOT-23A surface mount package.
Applications:
â– Charge Pump in 5-Pin SOT-23A Package
â– >95% Voltage Conversion Efficiency
â– Voltage Inversion and/or Doubling
â– Low 50µA (TCM828) Quiescent Current
â– Operates from +1.5V to +5.5V
â– Up to 25mA Output Current
â– Only Two External Capacitors Required
Specifications:
|
Datasheets |
TCM828, 829 |
|
Product Photos |
SOT25 |
|
PCN Obsolescence |
Multiple Devices 22/Feb/2011 |
|
Standard Package |
1 |
|
Category |
Integrated Circuits (ICs) |
|
Family |
PMIC - Voltage Regulators - DC DC Switching Regulators |
|
Series |
- |
|
Packaging |
Cut Tape (CT) |
|
Type |
Switched Capacitor (Charge Pump), Doubler, Inverting |
|
Output Type |
Adjustable |
|
Number of Outputs |
1 |
|
Voltage - Output |
-1.5 V ~ -5.5 V, ±3 V ~ ±11 V |
|
Voltage - Input |
1.5 V ~ 5.5 V |
|
PWM Type |
- |
|
Frequency - Switching |
35kHz |
|
Current - Output |
25mA |
|
Synchronous Rectifier |
No |
|
Operating Temperature |
-40°C ~ 85°C |
|
Mounting Type |
Surface Mount |
|
Package / Case |
SC-74A, SOT-753 |
|
Supplier Device Package |
SOT-23-5 |
|
Catalog Page |
625 (CN081 PDF) |
|
Other Names |
158-2032-1 |
Competitive Advantage:
Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .
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