TC682 TELCOM [TelCom Semiconductor, Inc], TC682 Datasheet
TC682
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TC682 Summary of contents
Page 1
... Low output source impedance (typically 140 ), pro- vides output current up to 10mA. The TC682 features low quiescent current and high efficiency, making it the ideal choice for a wide variety of applications that require a negative voltage derived from a single positive supply (for example: generation of – ...
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... – – TC682 – – V OUT GND – C OUT 5 + All Caps = 3.3 F Figure 1. TC682 Test Circuit TELCOM SEMICONDUCTOR, INC. Unit 5.5 V 300 A 400 180 230 320 — kHz — % — % – V OUT R L ...
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... See "Capacitor Selec- tion" in Applications section. to ground Simultaneously, the 3 APPLICATIONS is then switched to Negative Doubling Converter 2 The most common application of the TC682 charge pump voltage converter which provides a negative output of two times a positive input voltage (Figure 4). V OUT – ...
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... Battery Figure 6 shows a – 5V power supply using one 3V battery. The TC682 provides – lated to – the negative LDO. The input to the TC682 is given below: can vary from 3V to 5.5V without affecting regulation appre- ciably. A TC54 device is connected to the battery to detect ...
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... INVERTING VOLTAGE DOUBLER – – TC682 + – – GND GND Figure 5. Paralleling TC682 for Lower Output Source Resistance – – – TC682 + – – – OUT GND TELCOM SEMICONDUCTOR, INC ...
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... TC682 TYPICAL CHARACTERISTICS (F Output Resistance vs. V 240 220 200 180 160 140 120 (V) Supply Current vs. V 300 NO LOAD 250 200 150 100 (V) IN 200 150 100 50 0 4-26 = 12kHz) OSC IN –7.5 C1– 3.3 F –8.0 –8.5 –9.0 –9.5 – ...