ACTIVE
Part Number
UM3510
Description
1A, 2.25MHz, Synchronous Step-Down DC-DC Converter
Status
ACTIVE
Topology
Sync Buck
Iout(Max) (A)
1
Vin(Min) (V)
2.5
Vin(Max) (V)
6
Vout (Min) (V)
0.6
Vout (Max) (V)
6
Control mode
PWM / PFM
Switching Frequency (MHz)
2.25
Max Efficiency(%)
95
Features
Low Quiescent Current, Mode Selection, Thermal Fault Protection
Operating Temperature Range (℃)
-40 to 85
Package
SOT23-6, DFN6 2.0x2.0
The UM3510 is a high efficiency pulse-width-modulated (PWM) synchronous step-down DC-DC converter with an input voltage range of 2.5V to 6.0V. It provides up to 1000mA output current from a single Li-ion cell. The UM3510 operates at 2.25MHz fixed switching frequency and enters Power Save Mode to maintain high efficiency at light load condition.
For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high.
The UM3510 enters shutdown mode and consumes less than 1μA when EN pin is pulled low. Other features include lower internal reference voltage with 2% accuracy, over temperature protection and over current protection.
- High Efficiency: Up to 95%
- 2.25MHz Constant Switching Frequency
- 1000mA Output Current
- Integrated Main Switch and Synchronous Rectifier. No Schottky Diode Required.
- 2.5V to 6.0V Input Voltage Range
- Low Quiescent Current: 56礎
- Thermal Fault Protection
- <1礎 Shutdown Current
- Cellular and Smart Phones
- Microprocessors and DSP Core Supplies
- Wireless and DSL Modems
- PDAs, GPS
- WLAN
- Portable Instruments
| Part Number | Packaging Type | Marking Code | Shipping Qty |
|---|---|---|---|
| UM3510S | SOT23-6 | UCB | 3000pcs/7Inch Tape & Reel |
| UM3510DA | DFN6 2.0×2.0 | AAH | 3000pcs/7Inch Tape & Reel |
