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Solutions Search - Regulated Inverting 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 

 

Clever Circuit Improves Efficiency of Charge Pump Plus Linear Regulator Solution

Martin Merchant - Sr. Applications Engineer
Kevin B. Scott - Senior Strategic Marketing Engineer
Oct 4th 2016
In some systems, a charge pump plus linear regulator combination is preferred over an inductor-based switching power supply (with or without a post-regulating linear regulator) for several reasons: design simplicity, less radiated EMI, inductor-phobia, etc. For these applications, Linear Technology has a growing number ...

Blog Post 

 

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 

 

High Voltage Inverting Charge Pump Produces Low Noise Positive and Negative Supplies

Martin Merchant - Sr. Applications Engineer Oct 1st 2012
Introduction Dual-polarity supplies are commonly needed to operate electronics such as op amps, drivers, or sensors, but there is rarely a dual-polarity supply available at the point of load. The LTC®3260 is an inverting charge pump (inductorless) DC/DC converter with dual low noise LDO regulators that can produce positive ...

Blog Post 

 

DC1793A - LTC3260EMSE Demo Board | Low Noise Dual Supply Inverting Charge Pump Plus ±LDO, 4.5V ≤ VIN ≤ 32V, Vout = ±3.3V/±5V/±12V/±24V/±Adj @ ±50mA

May 30th 2012
Demonstration circuit 1793A is a high voltage inverting charge pump with low noise dual-polarity LDO regulators featuring the LTC®3260EMSE. The LTC3260 operates with an input voltage from 4.5V to 32V. The demo board provides selectable LDO± output set magnitudes of 3.3V, 5V, 12V and 24V for each polarity. Additional ...

Demo Board LTspice 

 

High Voltage Inverting Charge Pumps Offer Low Input & Output Ripple

May 9th 2012
MILPITAS, CA – May 9, 2012 – Linear Technology Corporation announces the LTC3260 and LTC3261 versatile high voltage charge pumps. The LTC3261 is a high voltage inverting charge pump that can deliver up to 100mA of output current. The LTC3260 has the same charge pump as the LTC3261, but also includes both positive and negative ...

Press Release 

 

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 

 

LTC3260: Low Noise ±5V Power Supply from a Single 12V Input

Apr 16th 2012
Dual-polarity supplies are commonly needed to operate electronics such as op amps, drivers, or sensors, but there is rarely a dual-polarity supply available at the point of load. The LTC®3260 is an inverting charge pump (inductorless) DC/DC converter with dual low noise LDO regulators that can produce positive and negative ...

Circuit LTspice 

 

LTC3260 28V Dual Tracking Bipolar Supply with Outputs from ±5V to ±25V

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 

 

DC482A - LTC1983ES6-5 | 100mA Regulated Charge-Pump Inverter, 3V-5.5V Input, -5Vout, Iout up to 100mA Max.

Oct 1st 2001
DC482A - Demo Board for:LTC1983 - 100mA Regulated Charge-Pump Inverters in ThinSOT ...

Demo Board 

 

DC092A-A - LTC1550LCS8 | -4.1V OUTPUT GaAs FET BIAS GENERATOR ACTIVE LOW SHUTDOWN

Oct 3rd 1995
...

Demo Board 

 

DC092A-B - LTC1551LCS8 | -4.1V OUTPUT GaAs FET BIAS GENERATOR ACTIVE HIGH SHUTDOWN

Oct 3rd 1995
...

Demo Board