The LMR62014 and LMR64010 are high frequency switching boost regulators which offer small size and high power conversion efficiency. The parts operate at a 1.6MHz switching frequency. The primary difference between the LMR62014 and LMR64010 is that the LMR62014 has a higher current internal switch FET (with lower breakdown voltage), while the LMR64010 has a higher voltage FET which handles less current.
The LMR64010 targets applications with higher output voltages, while the LMR62014 is intended for applications requiring higher load currents at lower output voltages. This application note describes the demo board supplied to demonstrate the operation of these parts and give information on its usage.
Features
2.7V to 12V Input Voltage Range
12V Output Voltage, and 450mA Output Current from 5V input supply (LMR62014)
24V Output Voltage, and 125mA Output Current from 5V input supply (LMR64010)
Switching Frequency of 1.6 MHz
Minimal Component Count
Small Solution Size (12mm x 17mm)
| Manufacturer | Texas Instruments |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | LMR64010XMFDEMO/NOPB-ND |
| Eval Board Supplier | Texas Instruments |
| Eval Board |
Board not Stocked
|
| Topology |
Step Up
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
24 V
|
| Current Out |
125 mA
|
| Voltage In |
2.7 ~ 12 V
|
| Efficiency @ Conditions |
>92%, 12V in, 24V @ 75 ~ 325 mA
>80%, 5V in, 24V @ 10 ~ 120 mA |
| Voltage Out Range |
Vin ~ 40 V
|
| Features |
Current Limit (Adj. or Fixed)
Electrolytic Free Shutdown, Enable, Standby Thermal Protection |
| Switching Frequency |
1.6 MHz
|
| Standby Current [Typical] |
24 nA
|
| Quiescent Current [Typical] |
2 mA
|
| Component Count + Extras |
10 + 4
|
| Internal Switch |
Yes
|
| Design Author |
Texas Instruments
|
| Application / Target Market |
Portable Devices
USB Powered Devices |
| Standby Current [Maximum] |
1 µA
|
| Quiescent Current [Maximum] |
3 mA
|
| Main I.C. Base Part |
LMR64010
|
| Date Created By Author | 2011-09 |
| Date Added To Library | 2012-07 |