STMicroelectronics, STLD41PUR


The STLD41 is a boost converter that operates from 3.0 V to 21 V and can provide an output voltage as high as 38 V. It can drive up to 40 white LEDs connected in 4 strings of 10 LEDs in series. The total output current capability is 120 mA at an output voltage of 38 V. Regulation is performed by the internal error amplifier which works with the feedback voltage from the sensing resistor. The device can be turned ON/OFF by way of the logic signal connected to the EN pin. The LEDs can be dimmed by applying a PWM signal to the PWM pin.

Boost DC-DC converterDrives up to 40 LEDs (4 strings of 10) with a total current up to 120 mAInput voltage range: 3.0 V to 21 VOutput current control1.4 MHz fixed frequency PWM controlPWM input for output current dimming with frequency range 25 kHz - 50 kHz2 A integrated switchOvervoltage protectionChip overtemperature detection and protectionLess than 1 μA standby currentSoft-start functionPackage DFN8 (3 x 3) 0.65 mm pitchApplicationsMini PCsPMP & PNDPrintersGame consoles

Attribute Value
Maximum Supply Current 10 (Typ.) μA
Mounting Type Surface Mount
Package Type DFN
Pin Count 8
Typical Operating Supply Voltage 3 21 V
Dimensions 3 x 3 x 0.95mm
Height 0.95mm
Length 3mm
Maximum Operating Temperature +85 °C
Minimum Operating Temperature -40 °C
Width 3mm
Output Voltage 38 V
Maximum Frequency 1.4MHz
3000 現貨庫存,可於3工作日發貨。
單價 個 (在毎卷:3000)
HK$ 7.31
Per unit
Per Reel*
3000 - 3000
6000 - 6000
9000 +
* 參考價格