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CM3132 Datasheet(PDF) 5 Page - California Micro Devices Corp |
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CM3132 Datasheet(HTML) 5 Page - California Micro Devices Corp |
5 / 11 page © 2004 California Micro Devices Corp. All rights reserved. 10/13/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 5 CM3132 PRELIMINARY Note 1: All parameters specified at TA = 0°C to +85°C unless otherwise noted. Note 2: Note that the IDDQ current specified is the load current output from the VDDQ pin. VDDQ also supplies current internally to the VTT regulator when it is sourcing current. The maximum source current can be up to 0.5A.The maximum total current from the VDDQ regulator is the external VDDQ current IDDQ added to the maximum VTT sourcing current ITT. All load currents are specified as such, but the VDDQ current limit is specified at a current just above the total maximum current. Note 3: VCORE regulator only. Refer to VDDQ regulator parameters for VDDQ regulator. Note 4: VCORE = 1.15V X (1 + ) Table 1: Truth Table for CM3132 VTT Regulator Parameters VTT Output Voltage Range VDDQ = 2.5V, ITT = 0.01A, IDDQ = 0A 1.20 1.25 1.30 V VTT REF Output Voltage Range VCC = 0V, VDDQ = 2.500V, ITT = 0.01A 1.225 1.250 1.275 V VTT LD Load Regulation TA = 25°C, VDDQ = 2.5V, 0.01A ≤ ITT ≤ ±0.5A -1.0 - 1.0 % eN TT Output Noise Voltage BW = 10Hz - 100kHz, CTT = 10µF51 µ Vrms ITT LIM Current Limit 0.6 0.8 A ITT SC Short Circuit Current VTT < 0.7V 0.3 A VCORE Regulator Parameters VCC MIN Input Voltage VCORE = 1.5V, ICORE = 1.5A, SENSE_CORE = 0V, Note 3 2.2 V VCORE DEF Default Output Voltage Range VCC = 3.3V, ICORE = 0.01A, SENSE_CORE = 0V 1.45 1.50 1.55 V VCORE ADJ Adjustable Output Voltage Range VCC = 3.3V, SENSE_CORE from resistors R3 & R4, Note 4 1.2 1.8 V VCORE LD Load Regulation TA = 25°C, VCC = 3.3V, 0.01A ≤ ICORE ≤ ±1.5 -- 2.5 % VCORE LINE Line Regulation TA = 25°C, 2.8V ≤ VCC ≤ 3.6V, ICORE = 0.01A -1.0 - 1.0 % eN CORE Output Noise Voltage BW = 10Hz - 100kHz, CCORE = 47µF59 µ Vrms ICORE LIM Current Limit 1.7 2.0 A ICORE SC Short Circuit Current VCORE < 0.3V 0.5 A VCC(1) EN_DDR VDDQ OUT VTT OUT 2.8V to 3.6V Low VDDQ VDDQ / 2 X High 0V 0V ELECTRICAL OPERATING CHARACTERISTICS (CONT’D) (SEE NOTE1) R3 R4 -------- |
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