Product Folder
Sample & Buy
Technical Documents
Tools & Software
Support & Community
LM3262
SNVS875O – AUGUST 2012 ...
Product Folder
Sample & Buy
Technical Documents
Tools & Software
Support & Community
LM3262
SNVS875O – AUGUST 2012 – REVISED DECEMBER 2015
LM3262 6-MHz, 800-mA Miniature, Adjustable, Step-Down DC-DC Converter With Auto Bypass for RF Power
Amplifiers
1 Features
1 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
2 Applications
HSUPA, LTE Cellular Phones TD-SCDMA and TD-LTE Hand-Held Radios RF PC Cards Battery-Powered RF Devices USB-Powered Portable Applications
3 Description
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 RFstage PA efficiencies.
The LM3262 offers five modes of operatio...
