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Product details

Parameters

Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Vout (Min) (V) 4.8 Vout (Max) (V) 5.2 Iout (Max) (A) 0.2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 1700 Switching frequency (Max) (kHz) 2300 Iq (Typ) (mA) 0.075 Features Enable, Load Disconnect Operating temperature range (C) -40 to 125 Type Charge Pump Rating Automotive open-in-new Find other Charge pumps (inductorless)

Package | Pins | Size

WSON (DSG) 8 4 mm² 2 x 2 open-in-new Find other Charge pumps (inductorless)

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • 2.7-V to 5.5-V input range
  • Fixed 5-V output
  • 200-mA output current
  • Inductor-less solution: only requires 3 small ceramic capacitors
  • Shutdown disconnects load from VIN
  • Current limit and thermal protection
  • 2-MHz switching frequency
  • PFM operation during light load currents (PFM pin tied high)

All trademarks are the property of their respective owners.

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Description

The LM2775-Q1 is a regulated switched-capacitor doubler that produces a low-noise output voltage. The LM2775-Q1 can supply up to 200 mA of output current over a 3.1-V to 5.5-V input range, as well as up to 125 mA of output current when the input voltage is as low as 2.7 V. The LM2775-Q1 provides a cost-optimized 5V, 200mA supply for powering CAN transceivers and other loads, boosting from a regulated 3.3-V system rail. It can be used as a post-boost in automotive systems that do not use a wide input voltage pre-boost or cold crank. At low output currents, the LM2775-Q1 can reduce its quiescent current by operating in a pulse frequency modulation (PFM) mode. PFM mode can be enabled or disabled by driving the PFM pin to high or low. Additionally, when the device is in shutdown, the user can chose to have the output voltage pulled to GND or left in a high impedance state by setting the OUTDIS pin high or low.

The LM2775-Q1 has been placed in TI’s 8-pin WSON, a package with excellent thermal properties that keeps the part from overheating under almost all rated operating conditions.

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Download

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet LM2775-Q1 Switched Capacitor 5-V Boost Converter datasheet (Rev. B) Jun. 14, 2019
Technical articles Painting a picture for powering high-performance FPGAs Sep. 05, 2013
Technical articles Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Technical articles How to choose an LDO or switching regulator May 08, 2013
Technical articles 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 BOARDS Download
document-generic User guide
$49.00
Description

The LM2775EVM aids in evaluation of the LM2775 Regulated 5V 200mA Charge Pump Boost.  The 2 MHz switched capacitor  boost provides up to 200mA of output current at an output voltage of 5V utilizing 3 small external capacitors.  With a low current PFM or ECO mode, the LM2775 draws a (...)

Features
  •  Regulated 5V output
  •  200mA Load Current
  •  PFM Mode
  •  High Impedance Output in Shutdown
  •  Very Small Solution Size with No Inductor

Design tools & simulation

SIMULATION MODELS Download
SNVMA71.ZIP (42 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Automotive multi-rail power supply for driving monitoring system reference design
PMP30785 — This reference design shows the performance of a non-isolated automotive power supply for a driving monitoring system for the electronic control unit (ECU). The reference design includes our power portfolio with nine power sockets.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive ADAS camera power supply reference design optimized for solution size and low noise
TIDA-050015 — This wide-input power-supply reference design is specifically designed for space-constrained automotive ADAS camera applications. This size-optimized design uses front-end protection paired with a wide input voltage DC/DC converter to enable off-battery operation. The front-end filter and component (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WSON (DSG) 8 View options

Ordering & quality

Support & training

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Videos

Introduction to the control of SMPS

This is a qualitative overview of the control of Switched Mode Power Supplies.

Posted: 08-Jan-2019
Duration: 18:59

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