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Solutions Search - Regulated Step-Up Charge Pumps

Low Noise Power Supplies Come in Many Flavors: Part 2 - Charge Pump Solutions

Kevin B. Scott - Senior Strategic Marketing Engineer
Amit Lele - Senior Design Engineer
Mar 23rd 2017
Charge pump solutions are often thought to be too noisy for low noise applications. Engineers associate charge pump power supplies with peak-to-peak noise levels in the 20mV to 200mV range. Linear Technology's latest family of regulated charge pump plus linear regulator power supply solutions are inductorless, small size, low ...

Blog Post 

 

LTC3200 Regulated 5V Output from a 2.7V to 4.5V Input

Sep 12th 2016
A new charge-pump architecture maintains constant switching frequency to zero load and reduces bith output and input ripple. The LTC3200/LTC3200-5 have thermal shutdown capability and can survive a continuous short-circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush curreent during start-up. ...

Circuit 

 

LTC3200 Lithium-Ion Battery to 5V White or Blue LED Driver

Sep 12th 2016
A new charge-pump architecture maintains constant switching frequency to zero load and reduces bith output and input ripple. The LTC3200/LTC3200-5 have thermal shutdown capability and can survive a continuous short-circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush curreent during start-up. ...

Circuit 

 

LTC3221 Micropower, Regulated 5V or 3.3V Charge Pump in 2 x 2 DFN

Sep 12th 2016
The LTC3221 family are micropower charge pump DC/DC converters that produce a regulated output at up to 60mA. The input voltage range is 1.8V to 5.5V. Extremely low operating current (8μA typical at no load) and low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make them ideally ...

Circuit 

 

DC2235A - LTC3265 Demo Board | Dual Supply Boost/Inverting Charge Pumps with Post-Regulator LDOs, 4.5V ≤ VIN ≤ 16V, Vout = ±5V/±15V/±24V @ 50mA

Oct 5th 2015
Demonstration Circuit 2235A has boost and inverting charge pumps each with a low noise LDO post regulator featuring the LTC®3265EDHC. The LTC3265 operates with an input voltage from 4.5V to 16V for the boost charge pump and from 4.5V to 32V for the inverting charge pump. The demo board provides selectable LDO± output ...

Demo Board 

 

High Voltage Boost & Inverting Charge Pumps Deliver Low Noise Dual Outputs with Post-Regulating ±50mA LDOs

Aug 31st 2015
MILPITAS, CA - August 31, 2015 - Linear Technology Corporation announces the LTC3265, a high voltage, highly integrated, low noise dual output power supply which takes a single positive input supply (VIN_P) and generates low noise bipolar rails up to ±2•VIN_P without any inductors. The device includes a boost doubling charge pump, ...

Press Release 

 

LTC3265 Low Noise ±15V Outputs from a Single 12V Input

Aug 27th 2015
The LTC®3265 is a low noise dual polarity output power supply including a boost charge pump, an inverting charge pump and two low noise positive and negative LDO post regulators. The boost charge pump powers the positive LDO post regulator while the inverting charge pump powers the negative LDO regulator. Each LDO can provide ...

Circuit 

 

LTC3265 Low Power ±20V Power Supply from a Single-Ended 15V Input Supply

Aug 27th 2015
The LTC®3265 is a low noise dual polarity output power supply including a boost charge pump, an inverting charge pump and two low noise positive and negative LDO post regulators. The boost charge pump powers the positive LDO post regulator while the inverting charge pump powers the negative LDO regulator. Each LDO can provide ...

Circuit 

 

LTC3265 Low Noise +7V/–2V Power Supply from a Single-Ended 5V Input Supply (Frequency = 200kHz)

Aug 27th 2015
The LTC®3265 is a low noise dual polarity output power supply including a boost charge pump, an inverting charge pump and two low noise positive and negative LDO post regulators. The boost charge pump powers the positive LDO post regulator while the inverting charge pump powers the negative LDO regulator. Each LDO can provide ...

Circuit 

 

Altera Cyclone III LS FPGA Development Kit

Jun 10th 2014
The Altera Cyclone III LS FPGA Development Kit combines the largest density, low-power FPGA available with a complete suite of security features implemented at the silicon, software, and intellectual property (IP) levels. These security features provide passive and active protection of your IP from tampering, ...

Circuit 

 

DC174A-A - LTC1517CS5-5 Demo Board | MICROPOWER REGULATED 5V CHARGE PUMP DC/DC CONVERTER

Jan 16th 2013
...

Demo Board 

 

LTC3260 Low Noise ±12V Power Supply from a Single-Ended 15V Input Supply

Apr 16th 2012
The LTC3260 is a low noise dual polarity output power supply that includes an inverting charge pump with both positive and negative LDO regulators. The charge pump operates over a wide 4.5V to 32V input range and can deliver up to 100mA of output current. Each LDO regulator can provide up to 50mA of output current. The negative ...

Circuit LTspice 

 

Ultralow IQ Regulated 60mA Step Up Charge Pump in 2mm x 2mm DFN Package

Nov 7th 2006
MILPITAS, CA - November 7, 2006 - Linear Technology Corporation announces the LTC3221/-3.3/-5 regulated step up charge pumps offered in the compact 2mm x 2mm DFN package. Featuring 60mA output current and Burst Mode® operation, the LTC3221 family consumes an ultra-low quiescent current of 8uA, saving battery run time in portable ...

Press Release 

 

DC862A-B - LTC3221EDC-5 Demo Board | Micropower Regulated Charge Pump, 2.7V ≤ VIN ≤ 5.5V, Vout = 5V @ Up to 60mA

Oct 13th 2006
Demonstration circuit 862 is a micropower regulated charge pump DC/DC converter featuring the 60mA output LTC3221 in a 2mmx2mm DFN package. It comes in three assembly versions, DC862A-A, DC862A-B and DC862A-C, featuring the LTC3221EDC-3.3 (fixed 3.3V output), the LTC3221EDC-5 (fixed 5V output) , and LTC3221EDC (adjustable output ...

Demo Board 

 

DC862A-A - LTC3221EDC-3.3 Demo Board | Micropower Regulated Charge Pump, 1.8V ≤ VIN ≤ 4.4V, Vout = 3.3V @ Up to 60mA

Oct 13th 2006
Demonstration circuit 862 is a micropower regulated charge pump DC/DC converter featuring the 60mA output LTC3221 in a 2mmx2mm DFN package. It comes in three assembly versions, DC862A-A, DC862A-B and DC862A-C, featuring the LTC3221EDC-3.3 (fixed 3.3V output), the LTC3221EDC-5 (fixed 5V output) , and LTC3221EDC (adjustable output ...

Demo Board 

 

DC862A-C - LTC3221EDC Demo Board | Micropower Regulated Adj Output Charge Pump, 1.8V ≤ VIN ≤ 3.8V, Vout = 3V @ Up to 60mA

Oct 13th 2006
Demonstration circuit 862 is a micropower regulated charge pump DC/DC converter featuring the 60mA output LTC3221 in a 2mmx2mm DFN package. It comes in three assembly versions, DC862A-A, DC862A-B and DC862A-C, featuring the LTC3221EDC-3.3 (fixed 3.3V output), the LTC3221EDC-5 (fixed 5V output) , and LTC3221EDC (adjustable output ...

Demo Board 

 

500mA Low Noise, High Efficiency Dual Mode Charge Pumps in 3mm x 3mm DFN Package

May 30th 2006
MILPITAS, CA - May 30, 2006 - Linear Technology Corporation announces the LTC3203-1/B/B-1 mode-selectable, high efficiency 500mA step-up charge pumps, offered in a compact 3mm x 3mm DFN package. Featuring low-noise constant-frequency (1MHz) operation and a wide input voltage range of 2.7V to 5.5V, the LTC3203B provides an adjustable ...

Press Release 

 

DC863A-A - LTC3203B Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 4V, Vout = 3.3V @ Up to 500mA

May 3rd 2006
Demonstration circuit 863 is a high efficiency regulated boost charge pump converter that exercises the 500mA low noise LTC3203 in the 3mm x 3mm DFN package. It comes with three assembly versions, DC863A-A (3.3V output), DC863A-B (4.5V or 5V output) and DC863A-C (4.5V or 5V output) , featuring the LTC3203B, LTC3203-1, and LTC3203B-1 ...

Demo Board LTspice 

 

DC863A-C - LTC3203B-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, Vout = 4.5V or 5V @ Up to 500mA

May 3rd 2006
Demonstration circuit 863 is a high efficiency regulated boost charge pump converter that exercises the 500mA low noise LTC3203 in the 3mm x 3mm DFN package. It comes with three assembly versions, DC863A-A (3.3V output), DC863A-B (4.5V or 5V output) and DC863A-C (4.5V or 5V output) , featuring the LTC3203B, LTC3203-1, and LTC3203B-1 ...

Demo Board 

 

DC863A-B - LTC3203-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, Vout = 4.5V or 5V @ Up to 500mA

May 3rd 2006
Demonstration circuit 863 is a high efficiency regulated boost charge pump converter that exercises the 500mA low noise LTC3203 in the 3mm x 3mm DFN package. It comes with three assembly versions, DC863A-A (3.3V output), DC863A-B (4.5V or 5V output) and DC863A-C (4.5V or 5V output) , featuring the LTC3203B, LTC3203-1, and LTC3203B-1 ...

Demo Board LTspice 

 

Regulated 2.5V and 3.3V 150mA Buck-Boost Charge Pumps in 2x2 DFN Package

Apr 24th 2006
MILPITAS, CA - April 24, 2006 - Linear Technology Corporation announces the LTC3240-2.5/3.3, versatile regulated buck-boost charge pumps in a 2mm x 2mm DFN package. The LTC3240-2.5/3.3 are capable of output currents as high as 150mA from a wide ranging input of 1.8V to 5.5V. When the input voltage exceeds the output voltage, ...

Press Release 

 

DC903A-B - LTC3240EDC-2.5 Demo Board | Regulated Buck-Boost Charge Pump, 1.8V ≤ VIN ≤ 5.5V, Vout = 2.5V @ Up to 150mA

Apr 13th 2006
Demonstration circuit 903 is a step-up/step-down charge pump dc-dc converter. It comes with two assembly versions, DC903A-A and DC903A-B featuring the 150mA output current LTC3240-3.3 (3.3V output) and LTC3240-2.5 (2.5V output) respectively, each in a tiny 2mm x 2mm DFN package. The DC903A-A and DC903A-B operate with an input ...

Demo Board LTspice 

 

DC903A-A - LTC3240EDC-3.3 Demo Board | Regulated Buck-Boost Charge Pump, 1.8V ≤ VIN ≤ 5.5V, Vout = 3.3V @ Up to 150mA

Apr 13th 2006
Demonstration circuit 903 is a step-up/step-down charge pump dc-dc converter. It comes with two assembly versions, DC903A-A and DC903A-B featuring the 150mA output current LTC3240-3.3 (3.3V output) and LTC3240-2.5 (2.5V output) respectively, each in a tiny 2mm x 2mm DFN package. The DC903A-A and DC903A-B operate with an input ...

Demo Board LTspice 

 

DC633A - LTC3202EDD | High Efficiency White LED Driver

May 31st 2001
DC633A - Demo Board for:LTC3202 - Low Noise, High Efficiency Charge Pump for White LEDs ...

Demo Board 

 

DC395A - LTC3202EMS Demo Board | Fractional Charge Pump LED Driver, 6 Paralleled LEDs, 2.7V ≤ VIN ≤ 4.5V, VLED up to 4V @ 120mA

May 31st 2001
Demonstration Circuit 395A is a Low Noise, Charge Pump White LED Driver featuring the LTC3202. The LTC3202 is a fractional charge pump LED driver that operates from 2.7V to 4.5V (3.3V nominal) and provides up to 125mA of LED current. The demo board includes 6 white LEDs in parallel, supplying approximately 20mA ...

Demo Board 

 

DC381A - LTC3201EMS | 100mA White LED (5) Power Supply

May 31st 2001
DC381A - Demo Board for:LTC3201 - 100mA Ultralow Noise Charge Pump LED Supply with Output Current Adjust ...

Demo Board 

 

DC366A - LTC3200EMS8 Demo Board | Regulated Charge Pump White LED Driver, 2.7V ≤ VIN ≤ 4.5V, IOUT Drives 6 Parallel LEDs

Nov 9th 2000
Demonstration Circuit 366A is a low noise constant frequency regulated charge pump featuring the 100mA output current LTC3200. The demo board accepts a 2.7V to 4.5V input voltage and drives six white LEDs in parallel, resulting in 16.6mA per LED. Ballast resistors are employed to provide more uniform light intensity fromr the ...

Demo Board 

 

DC323A-B - LTC1751EMS8-3.3 | Regulated Charge Pump DC/DC Converter, 2V to 4.5V Input, 3.3Vout @ 40mA

Oct 12th 2000
DC323A-B - Demo Board for:LTC1751 - Micropower, Regulated Charge Pump DC/DC Converters ...

Demo Board 

 

DC323A-A - LTC1751EMS8-5 | Regulated Charge Pump DC/DC Converter, 3V to 5.5V Input, 5Vout @ 100mA

Oct 12th 2000
DC323A-A - Demo Board for:LTC1751 - Micropower, Regulated Charge Pump DC/DC Converters ...

Demo Board 

 

DC323A-C - LTC1751EMS8 | Regulated Charge Pump DC/DC Converter, 2.5V to 4.5V Input, 4Vout @ 75mA

Oct 12th 2000
DC323A-C - Demo Board for:LTC1751 - Micropower, Regulated Charge Pump DC/DC Converters ...

Demo Board 

 

DC353A - LTC1928ES6-5 | Low Noise Boost DC/DC Converter, 2.7V to 4.4V Input, 5Vout @ 30mA

Sep 18th 2000
...

Demo Board 

 

DC174A-B - LTC1517CS5-3.3 Demo Board | MICROPOWER REGULATED 5V CHARGE PUMP DC/DC CONVERTER

Jul 12th 1999
...

Demo Board 

 

DC332A - LTC1682CMS8 | White LED Driver, 3.0V to 4.2V Input, 75mA Output (5 White LEDs)

Mar 9th 1999
DC332A - Demo Board for:LTC1682 - Doubler Charge Pumps with Low Noise Linear Regulator ...

Demo Board 

 

DC249A-B - LTC1682CMS8-5 | Doubler Charge Pump with Linear Regulator, Fixed, 2.7 to 4.4Vin, 5.0Vout @ 50mA

Mar 9th 1999
DC249A-B - Demo Board for:LTC1682 - Doubler Charge Pumps with Low Noise Linear Regulator ...

Demo Board 

 

DC249A-A - LTC1682CMS8 | Doubler Charge Pump with Linear Regulator, Adjustable, 1.8 to 4.4Vin, 2.5 to 5.5Vout @ 50mA

Mar 9th 1999
DC249A-A - Demo Board for:LTC1682 - Doubler Charge Pumps with Low Noise Linear Regulator ...

Demo Board 

 

DC249A-C - LTC1682CMS8-3.3 | Doubler Charge Pump with Linear Regulator, Fixed, 2.0 to 4.4Vin, 3.3Vout @ 50mA

Mar 9th 1999
DC249A-C - Demo Board for:LTC1682 - Doubler Charge Pumps with Low Noise Linear Regulator ...

Demo Board 

 

DC239A - LTC1502CMS8-3.3 | Single Cell Input, 3.3V/10mA Output, Inductorless DC-DC Converter

Feb 8th 1999
DC239A - Demo Board for:LTC1502-3.3 - Single Cell to 3.3V Regulated Charge Pump DC/DC Converter ...

Demo Board 

 

LT1054 Negative Doubler with Regulator

Apr 28th 1994
The LT®1054 is a monolithic, bipolar, switched-capacitor voltage converter and regulator. The LT1054 provides higher output current than previously available converters with significantly lower voltage losses. An adaptive switch driver scheme optimizes efficiency over a wide range of output currents. Total voltage loss at ...

Circuit LTspice