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Product details

Parameters

Vin (Min) (V) 3.5 Vin (Max) (V) 15 Vout (Min) (V) -1.25 Vout (Max) (V) -15 Iout (Max) (A) 0.1 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 1 Switching frequency (Max) (kHz) 100 Iq (Typ) (mA) 2.5 Features Integrated LDO Operating temperature range (C) -40 to 85, 0 to 70 Type Charge Pump Rating Catalog open-in-new Find other Charge pumps (inductorless)

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (DW) 16 77 mm² 7.52 x 10.28 open-in-new Find other Charge pumps (inductorless)

Features

  • Output Current, 100 mA
  • Low Loss, 1.1 V at 100 mA
  • Operating Range, 3.5 V to 15 V
  • Reference and Error Amplifier for Regulation
  • External Shutdown
  • External Oscillator Synchronization
  • Devices Can Be Paralleled
  • Pin-to-Pin Compatible With the LTC1044/7660
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Description

The LT1054 device is a bipolar, switched-capacitor voltage converter with regulator. It provides higher output current and significantly lower voltage losses than previously available converters. An adaptive-switch drive scheme optimizes efficiency over a wide range of output currents.

Total voltage drop at 100-mA output current typically is 1.1 V. This applies to the full supply-voltage range of 3.5 V to 15 V. Quiescent current typically is 2.5 mA.

The LT1054 also provides regulation, a feature previously not available in switched-capacitor voltage converters. By adding an external resistive divider, a regulated output can be obtained. This output is regulated against changes in both input voltage and output current. The LT1054 can also shut down by grounding the feedback terminal. Supply current in shutdown typically is 100 µA.

The internal oscillator of the LT1054 runs at a nominal frequency of 25 kHz. The oscillator terminal can be used to adjust the switching frequency or to externally synchronize the LT1054.

The LT1054C is characterized for operation over a free-air temperature range of 0°C to 70°C. The LT1054I is characterized for operation over a free-air temperature range of −40°C to 85°C.

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Technical documentation

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Type Title Date
* Data sheet LT1054 Switched-Capacitor Voltage Converters With Regulators datasheet (Rev. G) Jul. 31, 2015
Technical article Painting a picture for powering high-performance FPGAs Sep. 05, 2013
Technical article Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Technical article How to choose an LDO or switching regulator May 08, 2013
Technical article Engineer It Video Series: Testing Power Supplies Mar. 26, 2013

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description
The TI Analog, Active Crossover Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into a high quality, two-way speaker amplifier.  The plug-in module makes it easy to remove the large and expensive passive crossover found in passive loudspeakers and create a biamped, two-way (...)
Features
  • Compatible with TI Audio Plug-in Module Ecosystem
  • Complete design for two-way, active crossover speakers
  • Active crossover includes a high-pass filter, low-pass filter, baffle step and delay
  • Input: Mono RCA jack
  • Output: Analog, 2-channel, 2-Vrms differential
  • Connect to TI Class-D Audio EVMs (Check (...)

Design tools & simulation

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PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SOIC (DW) 16 View options

Ordering & quality

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