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STLD20D Datasheet(PDF) 4 Page - STMicroelectronics |
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STLD20D Datasheet(HTML) 4 Page - STMicroelectronics |
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4 / 8 page  STLD20D 4/8 Table 4: Electrical Characteristics (for VIN = 2.8 to 4.2V and Tj = 25°C) Table 5: Thermal Characteristics Symbol Parameter Test conditions Value Unit Min. Typ. Max. VIN Operating Input voltage range 2.8 4.2 V IOUT Average regulated current IOUT = 20mA RLED = 15Ω 19 20 21 mA ISD Stand-by current SHDN = low VIN = 4.2V 1 µA IQ Quiescent current consumption SHDN = high VIN = 4.2V 0.43 0.6 mA SW Boost switch RDSON SOT23-8L Tj = 25°C ISW = 250mA VIN = 2.8V 0.51 0.6 Ω VIN = 4.2V 0.45 0.49 QFN Tj = 25°C ISW = 250mA VIN = 2.8V 0.65 VIN = 4.2V 0.55 LDS Load disconnect switch RDSON SOT23-8L Tj = 25°C ILDS = 20mA VIN = 2.8V 5.5 6.1 Ω VIN = 4.2V 4.7 5.2 QFN Tj = 25°C ILDS = 20mA VIN = 2.8V 6.2 VIN = 4.2V 5.3 FB Feedback voltage 0.285 0.300 0.315 V Line Variation of the LED current versus the input voltage: RLED = 15Ω 0.9 mA/V Eff Efficiency with 4 LEDS Vout = 16V Circuit configura- tion (figure 1) L: Murata LQH32CN100K33 Diode: BAT20J VIN = 2.8V 80 % VIN = 4.2V 85 Switching frequency 400 500 600 kHz DCMIN Minimum duty cycle 22 25 % ILIM Peak current boost switch L = 10µH RSET = GND (STLD20D-C8) 640 mA OVP Overvoltage protection 17.5 18.5 20 Vdc HystOV Overvoltage hysteresis 0.7 Vdc OTP Over temperature protection 110 °C HystOT Over temperature protection hysteresis 5 °C SHDN Shutdown signal logic Disable Low VIL 0.3 V Enable high VIH 1.2 Symbol Parameter Value Unit Min. Typ. Max. Rth(j-a) Mounted on epoxy board without copper heatsink SOT23-8L 300 °C/W QFN 350 |
Similar Part No. - STLD20D |
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Similar Description - STLD20D |
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