Home Power management DC/DC switching regulators Step-down (buck) regulators Buck converters (integrated switch)

LM3262

ACTIVE

6MHz, 800mA Miniature, Adjustable, Step-Down DC-DC Converter with Bypass

Product details

Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.4 Vout (max) (V) 3.6 Iout (max) (A) 1 Iq (typ) (mA) 0.06 Switching frequency (min) (kHz) 5700 Switching frequency (max) (kHz) 6300 Features Fixed Output Operating temperature range (°C) -30 to 90 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.4 Vout (max) (V) 3.6 Iout (max) (A) 1 Iq (typ) (mA) 0.06 Switching frequency (min) (kHz) 5700 Switching frequency (max) (kHz) 6300 Features Fixed Output Operating temperature range (°C) -30 to 90 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 100 Type Converter
DSBGA (YFQ) 9 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001
  • Operates from a Single Li-Ion Cell (2.5 V to 5.5 V)
  • 6-MHz (Typical) PWM Switching Frequency
  • Adjustable Output Voltage (0.4 V to 3.6 V)
  • 800-mA Maximum Load Capability (up to 1 A in Bypass Mode)
  • High Efficiency (93% Typical at 3.8 VIN, 3.4 VOUT at 500 mA)
  • Automatic ECO/PWM/BP Mode Change
  • Current and Thermal Overload Protection
  • Multi-Function VCON Pin
    (Eliminates Need for Separate BPEN Control)
  • Soft-Start Function
  • Small Chip Inductor in 0805 (2012) Case Size
  • 25-µA (Typical) IQ in Sleep Mode
  • 5-µs (Typical) Rise Time and Fall Time for
    2-V Step
  • 9-Pin DSBGA Package
  • Operates from a Single Li-Ion Cell (2.5 V to 5.5 V)
  • 6-MHz (Typical) PWM Switching Frequency
  • Adjustable Output Voltage (0.4 V to 3.6 V)
  • 800-mA Maximum Load Capability (up to 1 A in Bypass Mode)
  • High Efficiency (93% Typical at 3.8 VIN, 3.4 VOUT at 500 mA)
  • Automatic ECO/PWM/BP Mode Change
  • Current and Thermal Overload Protection
  • Multi-Function VCON Pin
    (Eliminates Need for Separate BPEN Control)
  • Soft-Start Function
  • Small Chip Inductor in 0805 (2012) Case Size
  • 25-µA (Typical) IQ in Sleep Mode
  • 5-µs (Typical) Rise Time and Fall Time for
    2-V Step
  • 9-Pin DSBGA Package

The LM3262 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single lithium-ion cell; however, it may be used in many other applications such as USB-powered portable applications. The device 2.5-V to 5.5-V input voltage can be stepped down to an adjustable output voltage range from 0.4 V to 3.6 V. Output voltage is set using a VCON analog input which enables improved RF-stage PA efficiencies.

The LM3262 offers five modes of operation. In pulse width modulation (PWM) mode the device operates at a fixed frequency of 6 MHz (typical), which minimizes RF interference at medium-to-low loads. At light load, the device enters into ECO mode automatically and operates with reduced switching frequency. In ECO mode, the quiescent current is reduced and extends the battery life. Shutdown mode turns the device off and reduces battery consumption to 0.1 µA (typical). At low-battery condition, bypass mode reduces the voltage dropout to less than 50 mV (typical). The device also features a sleep mode.

The LM3262 is available in a 9-pin, lead-free DSBGA package. A high-switching frequency (6 MHz) allows use of only three tiny surface-mount components: one inductor and two ceramic capacitors.

For all available packages, see the orderable addendum at the end of the data sheet.

The LM3262 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single lithium-ion cell; however, it may be used in many other applications such as USB-powered portable applications. The device 2.5-V to 5.5-V input voltage can be stepped down to an adjustable output voltage range from 0.4 V to 3.6 V. Output voltage is set using a VCON analog input which enables improved RF-stage PA efficiencies.

The LM3262 offers five modes of operation. In pulse width modulation (PWM) mode the device operates at a fixed frequency of 6 MHz (typical), which minimizes RF interference at medium-to-low loads. At light load, the device enters into ECO mode automatically and operates with reduced switching frequency. In ECO mode, the quiescent current is reduced and extends the battery life. Shutdown mode turns the device off and reduces battery consumption to 0.1 µA (typical). At low-battery condition, bypass mode reduces the voltage dropout to less than 50 mV (typical). The device also features a sleep mode.

The LM3262 is available in a 9-pin, lead-free DSBGA package. A high-switching frequency (6 MHz) allows use of only three tiny surface-mount components: one inductor and two ceramic capacitors.

For all available packages, see the orderable addendum at the end of the data sheet.

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 3
Type Title Date
* Data sheet LM3262 6-MHz, 800-mA Miniature, Adjustable, Step-Down DC-DC Converter With Auto Bypass for RF Power Amplifiers datasheet (Rev. O) PDF | HTML 30 Dec 2015
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide LM3262 DSBGA Evaluation Board (Rev. B) 30 Apr 2013

Design & development

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

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Package Pins Download
DSBGA (YFQ) 9 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