CS5253-1 Cherry Semiconductor Corporation, CS5253-1 Datasheet
CS5253-1
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CS5253-1 Summary of contents
Page 1
... This circuitry, which includes over- current, short circuit, and over-tem- perature protection will self protect the regulator under all fault condi- tions. The CS5253-1 is ideal for generating a secondary 2-2.5V low voltage supply on a motherboard where both 5V and 3.3V are already avail- able. V OUT 2 ...
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V Input Voltage.......................................................................................................................................................................6V POWER V Input Voltage.................................................................................................................................................................13V CONTROL Operating Junction Temperature Range ................................................................................................................0¡C ² T Storage Temperature Range .....................................................................................................................................-65¡C to +150¡C Lead Temperature Soldering Reflow (SMD styles only) ......................................................................................60 sec. max above 183¡C, 230¡C peak ESD Damage Threshold............................................................................................................................................................2kV Electrical Characteristics: ...
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PACKAGE PIN # PIN SYMBOL 2 5Lead D PAK 1 V SENSE 2 Adjust 3 V OUT 4 V CONTROL 5 V POWER V POWER V CONTROL BIAS V and REF TSD Package Pin Description This Kelvin sense pin allows ...
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Reference Voltage vs Junction Temperature 1.253 1.252 1.251 1.250 1.249 1.248 1.247 Junction Temperature (C) Transient Response V = 5.0V CONTROL V = 3.3V POWER V = 2.5V OUT C = 10mF CONTROL C = 100mF ...
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Short Circuit Output Current vs Junction Temperature 3 2.75V CONTROL V = 2.05V POWER 3.8 3.7 3.6 3.5 3.4 3 Junction Temperature (C) V Only Output Current vs Junction Temperature CONTROL 12 V ...
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... The output can never come up unregulated. The CS5253-1 can also be used as a single supply device with the control and power inputs tied together. In this mode, the dropout will be determined by the minimum control voltage ...
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... SENSE V Power V OUT V Adjust Figure 2: This circuit is an example of how the CS5253-1 can be short- circuit-protected when operating with V OUT Application Notes: continued Stability Considerations The output compensation capacitor helps determine three main characteristics of a linear regulator: start-up delay, load transient response, and loop stability. ...
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... QSA The value for R PAK package. For a high current regulator such as the CS5253-1 the majority of heat is generated in the power transistor section. The value for R sink type, while the R age type, heat sink interface (is an insulator and thermal grease used?), and the contact area between the heat sink and the package ...
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... PACKAGE DIMENSIONS IN mm (INCHES) 8.53 (.336) 8.28 (.326) 15.75 (.620) 14.73 (.580) 1.70 (.067) REF 4.57 (.180) 4.31 (.170) Ordering Information Part Number Description CS5253-1GDP5 5 Lead D CS5253-1GDPR5 5 Lead D Rev. 5/6/99 Package Specification Thermal Data R QJC R QJA *Depending on thermal properties of substrate Lead D PAK (DP) 10.31 (.406) 10.05 (.396) 1.68 (.066) 1.40 (.055) 0.91 (.036) 0.66 (.026) ...