LM828

ACTIVE

Switched Capacitor Voltage Converter

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
LM2776 ACTIVE Switched Capacitor Inverter Lower output impedence and higher output current up to 200 mA

Product details

Iout (max) (A) 0.025 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Type Charge pump Switching frequency (min) (kHz) 6 Switching frequency (max) (kHz) 28 Features Synchronous Rectification Vout (min) (V) -5.5 Vout (max) (V) -1.8 Rating Catalog Operating temperature range (°C) -40 to 85
Iout (max) (A) 0.025 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Type Charge pump Switching frequency (min) (kHz) 6 Switching frequency (max) (kHz) 28 Features Synchronous Rectification Vout (min) (V) -5.5 Vout (max) (V) -1.8 Rating Catalog Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Inverts Input Supply Voltage
  • SOT-23 Package
  • 20Ω Typical Output Impedance
  • 97% Typical Conversion Efficiency at 5 mA

All trademarks are the property of their respective owners.

  • Inverts Input Supply Voltage
  • SOT-23 Package
  • 20Ω Typical Output Impedance
  • 97% Typical Conversion Efficiency at 5 mA

All trademarks are the property of their respective owners.

The LM828 CMOS charge-pump voltage converter inverts a positive voltage in the range of +1.8V to +5.5V to the corresponding negative voltage of −1.8V to −5.5V. The LM828 uses two low cost capacitors to provide up to 25 mA of output current.

The LM828 operates at 12 kHz switching frequency to reduce output resistance and voltage ripple. With an operating current of only 40 µA (operating efficiency greater than 96% with most loads), the LM828 provides ideal performance for battery powered systems. The device is in a tiny SOT-23 package.

The LM828 CMOS charge-pump voltage converter inverts a positive voltage in the range of +1.8V to +5.5V to the corresponding negative voltage of −1.8V to −5.5V. The LM828 uses two low cost capacitors to provide up to 25 mA of output current.

The LM828 operates at 12 kHz switching frequency to reduce output resistance and voltage ripple. With an operating current of only 40 µA (operating efficiency greater than 96% with most loads), the LM828 provides ideal performance for battery powered systems. The device is in a tiny SOT-23 package.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet LM828 Switched Capacitor Voltage Converter datasheet (Rev. D) 02 May 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos