Datasheet

1 Amp, WIDE INPUT RANGE, STEP-DOWN CONVERTER

Specifications refer to the standard application circuit at Ta: 25°C

Type: W 78 - xxx 3V3 Item No: 167803 5V0 Item No: 167805 9V0 Item No: 167809 12V Item No: 167812

Parameter: Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Units

Input Voltage Range 5.5 34.0 7.0 34.0 11.0 34.0 15.0 34.0 V

Output Voltage 3.249 3.399 5.007 5.266 8.991 9.496 11.626 12.294 V

Line Voltage Regulation (Uin = min. to max. at 1A) 0.09 0.2 0.05 0.1 0.05 0.1 0.09 0.2 %

Load Regulation (0 to 1000 mA at Uin = 25V) 0.12 0.2 0.12 0.2 0.08 0.15 0.06 0.1 %

Transient Recovery Time (100% <-> 50% load) 150 150 150 150 µsec

Ripple & Noise (1000 mA) 7 15 20 7 18 27 7 18 39 7 18 45 mVp-p

Internal Power Dissipation (Uin = 34V at max. load) 835 833 830 828 mW

Quiescent Current 3.2 5.7 3.3 6.6 3.75 8.0 4.7 8.5 mA

All Types:

Output Current 0 1000 mA

Output Current Limit 1200 1500 1800 mA

Current Limit Hiccup Time 13 16 20 ms

Temperature Coefficient 0.0115 0.012 %/°C

Switching Frequency 400 500 600 kHz

Undervoltage Lockout 5.3 5.5 V

Undervoltage Hysteresis 330 mV

Thermal Shutdown (internal junction temperature) 135 162 °C

Thermal Shutdown Hysteresis 14 °C

Operating Temperature Range -40 +85 °C

Operating Junction Temperature Range -40 +125 °C

Storage Temperature Range -40 +125 °C

Rel. Air Humidity (non-condensing) 85 %

Features:

No Min. Load Required

Internal Soft-Start ( 8 ms )

Short-Circuit Robust

No Output Capacitor Required

Pin-out compatible with 78XX Linear-regulator's

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Amp, WIDE INPUT RANGE, STEP-DOWN CONVERTER Specifications refer to the standard application circuit at Ta: 25°C Type: W 78 - xxx Parameter: Input Voltage Range Output Voltage Line Voltage Regulation (Uin = min. to max. at 1A) Load Regulation (0 to 1000 mA at Uin = 25V) Transient Recovery Time (100% <-> 50% load) Ripple & Noise (1000 mA) Internal Power Dissipation (Uin = 34V at max. load) Quiescent Current 3V3 Min. Item No: 167803 Typ. Max. 5.5 3.249 5V0 Min. 34.0 3.399 0.2 0.2 7.0 5.007 20 7 3.
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1 Amp, WIDE INPUT RANGE, STEP-DOWN CONVERTER EFFICIENCY (%): 100 100 95.64 96.07 96.26 96.32 96.33 96.29 96.22 96.13 Uin Min 94.55 95 91.75 90.50 90 93.27 92.98 92.52 93.56 93.45 Uin Max 93.61 93.09 95 W 78 - 12V 87.38 93.00 93.22 92.76 92.50 Uin Min 81.90 84.33 83.40 80 85 93.38 93.47 87.53 85 90.36 93.42 92.01 90 85.30 84.92 85.53 Uin Max 85.67 79.28 75 W 78 - 5V0 73.99 70 65 80 60 77.77 59.32 55 75 0.2 0 0.4 Current (A) 0.8 0.6 1 0.4 0.