pt5109 China Resources Powtech (Shanghai) Co., Ltd, pt5109 Datasheet
pt5109
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pt5109 Summary of contents
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... The PT5109 is a low-dropout voltage regulator designed for portable applications that require both low noise performance and board space. Its PSRR at 1kHz is better than 60dB. The PT5109’s is ideal for battery powered systems for delivering low dropout voltage and low quiescent current. ...
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... Range OUT V Range EN Maximum Power Dissipation (Note1) Junction Temp. Storage Temp. Lead Temp. (Note2) ESD Rating, HBM China Resources Powtech (Shanghai) Limited PT5109_DS Rev EN_2.0 High-PSRR 300mA LDO SOT23-5 DESCRIPTION 1 Input of LDO 2 Ground 5 Output of LDO Enable Input Logic, Enable High 3 No Connection ...
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... Level Minimum High Input V IH Level Thermal Shutdown Temperature TSD Thermal Shutdown Hysteresis Δ Temperature OUT OUT Characteristics V OUT China Resources Powtech (Shanghai) Limited PT5109_DS Rev EN_2.0 VALUE -0.3~8V -0.3~(V IN SOT23-5 220 JA SOT23-5 0.25 -40~ 1mA OUT CONDITIONS I ...
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... Note 8: Dropout voltage is the input-to-output voltage difference at which the output voltage is 100mV below its nominal value. This specification does not apply for input voltages below 2.5V. China Resources Powtech (Shanghai) Limited PT5109_DS Rev EN_2.0 High-PSRR 300mA LDO is the junction temperature the ambient temperature, and θ ...
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... V Enable EN Figure1. Graph the PT5109 major functional blocks In Figure 1, the block of Bandgap Reference provides the reference voltage of the LDO. The op amp block is used as the error amplifier of the LDO by compare the reference with the output feedback voltages. Its output controls the gate of a large PMOS driver and hereby adjusts the output voltage. ...
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... Load Current(mA) Start Up Time OUT Load Transient Response 150mA Iout 0mA V =2.8V OUT China Resources Powtech (Shanghai) Limited PT5109_DS Rev EN_2.0 200 250 300 4V 3V 150mA 0mA WWW.CRPOWTECH.COM PT5109 High-PSRR 300mA LDO Enable Response 2.5V OUT C = 1uF OUT Time (100µ ...
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... Capacitor Characteristics). The PT5109 is designed to work with very small ceramic output capacitors. A 1.0μF capacitor (X7R type) with ESR type between 0 and 400mΩ is suitable in the PT5109 applications. X5R capacitors may be used but have a narrow temperature range ...
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... This is especially important in CMOS RAM keep-alive applications. ON/OFF INPUT OPERATION The PT5109 is turned off by pulling the VEN pin low, and turned on by pulling it high. If this function is not used, the VEN pin should be tied to VIN to keep the regulator output on at all time. To assure proper ...
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... PACKAGE INFORMATION SYMBOL A1 A2 China Resources Powtech (Shanghai) Limited PT5109_DS Rev EN_2.0 SOT23 MILLIMETERS INCHES MIN MAX MIN A 1.050 1.250 0.041 0.000 0.100 0.000 1.050 1.150 0.041 b 0.300 0.400 0.012 c 0.100 0.200 0.004 D 2.820 3.020 0.111 E 1.500 1.700 0.059 E1 2 ...