LTC3204 - Low Noise Regulated Charge Pump in 2 × 2 DFN
The LTC3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are low noise, constant frequency (1.2MHz) switched capacitor voltage doublers. The LTC3204-3.3/ LTC3204B-3.3 can produce a regulated output voltage of 3.3V from a minimum input voltage of 1.8V (2 alkaline cells) whereas the LTC3204-5/LTC3204B-5 can produce 5V from a minimum of 2.7V (Li-Ion battery) input.
LTC3204-3.3/LTC3204-5 feature automatic Burst Mode® operation at light loads to maintain low supply current whereas LTC3204B-3.3/LTC3204B-5 feature constant frequency operation at any load. Built-in soft-start circuitry prevents excessive inrush current during start-up. Thermal shutdown and current-limit circuitry allow the parts to survive a continuous short-circuit from VOUT to GND.
High switching frequency minimizes overall solution footprint by allowing the use of tiny ceramic capaci-tors. In shutdown, the load is disconnected from the input and the quiescent current is reduced to <1µA.
The LTC3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are available in a low profile (0.75mm) 6-lead 2mm × 2mm DFN package.
*Protected by U.S. Patents including 6411531.
Features
Typical Application  | Applications
Packaging |
Order Information
| Part Number | Package | Temp | Price(1-99) | Price (1k)* |
|---|---|---|---|---|
| LTC3204BEDC-3.3#PBF | 2x2 DFN-6 | E | $1.91 | |
| LTC3204BEDC-3.3#TRMPBF | 2x2 DFN-6 | E | $1.91 | $1.62 |
| LTC3204BEDC-3.3#TRPBF | 2x2 DFN-6 | E | $1.91 | $1.60 |
| LTC3204BEDC-5#PBF | 2x2 DFN-6 | E | $1.91 | |
| LTC3204BEDC-5#TRMPBF | 2x2 DFN-6 | E | $1.91 | $1.62 |
| LTC3204BEDC-5#TRPBF | 2x2 DFN-6 | E | $1.91 | $1.60 |
| LTC3204EDC-3.3#PBF | 2x2 DFN-6 | E | $1.91 | |
| LTC3204EDC-3.3#TRMPBF | 2x2 DFN-6 | E | $1.91 | $1.62 |
| LTC3204EDC-3.3#TRPBF | 2x2 DFN-6 | E | $1.91 | $1.60 |
| LTC3204EDC-5#PBF | 2x2 DFN-6 | E | $1.91 | |
| LTC3204EDC-5#TRMPBF | 2x2 DFN-6 | E | $1.91 | $1.62 |
| LTC3204EDC-5#TRPBF | 2x2 DFN-6 | E | $1.91 | $1.60 |
Demo Boards
| Part Number | Description | Price |
|---|---|---|
| DC761A-A | LTC3204EDC-5 Demo Board | Low Noise Regulated Charge Pump in 2x2 DFN, Burst Mode, Vin = 2.7V-5.5V, Vout = 5V/(65-150mA) | $75.00 |
| DC761A-B | LTC3204EDC-3.3 Demo Board | Low Noise Regulated Charge Pump in 2x2 DFN, Burst Mode, Vin = 1.8V-4.5V, Vout = 3.3V/(40-50mA max) | $75.00 |
| DC916A-A | LTC3204BEDC-5 Demo Board | Low Noise Regulated Charge Pump 2x2 DFN, Vin = 2.7V-5.5V, Vout = 5V/(65-150mA max) | $75.00 |
| DC916A-B | LTC3204BEDC-3.3 Demo Board | Low Noise Regulated Charge Pump in 2x2 DFN, Vin = 1.8V-4.5V, Vout = 3.3V/(40-50mA max) | $75.00 |
