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ELM9430B-N Datasheet(PDF) 1 Page - ELM Technology Corporation |
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ELM9430B-N Datasheet(HTML) 1 Page - ELM Technology Corporation |
1 / 6 page 1 ELM94xxB CMOS PFM step-up DC/DC converter Parameter Symbol Limit Unit Apply voltage to LX pin Vlx 12 V Apply voltage to VOUT pin Vout 12 V Output current of LX pin Ilx 200 mA Power dissipation Pd 300 mW Operating temperature Top -40 to +85 °C Storage temperature Tstg -55 to +125 °C ELM94xxB is CMOS step-up DC/DC converter which consists of reference voltage source, error amplifier, oscillation circuit, start-up circuit, PFM control circuit, switching transistor and output voltage setting resistor. For external parts, coil, diode and capacitor are possible choices; with external parts, ELM94 series is able to acquire constant output voltage higher than input voltage. The standard output voltages are 2.7V, 3.0V, 3.3V, and 5.0V; ELM94 series can also be designed as semi-custom IC within the range of 2.5V to 5.5V by 0.1V step. • Output voltage range : 2.5V to 5.5V (by 0.1V) • Low voltage operation : Vin≥0.98V (RL=30kΩ) • Low power operation : 12μW (Typ. ELM9430B) • High efficiency : Typ. 80% • High output voltage accuracy : ±2.5% • Output current(e.g.) : 20mA (When Vin=1.5V, Vout=3.0V) • Package : SOT-89 Pin No. Pin name 1VSS 2 VOUT 3LX ELM94xxB-x Symbol a, b Output voltage e.g. : 27: Vout=2.7V 30: Vout=3.0V 33: Vout=3.3V 50: Vout=5.0V c Product version B d Taping direction S : Refer to PKG file N : Refer to PKG file ELM94 x x B - x ↑ ↑ ↑ ↑ a b c d ■General description ■Features ■Application • Constant voltage source for battery- operated devices • Constant voltage source for cameras • Portable communication equipments • Local regulator ■Maximum absolute ratings ■Selection guide ■Pin configuration SOT-89 (TOP VIEW) 6 - |
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