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R5328K Dataheets PDF



Part Number R5328K
Manufacturers RICOH
Logo RICOH
Description Low Voltage 3-Mode Dual 150mA LDO
Datasheet R5328K DatasheetR5328K Datasheet (PDF)

R5328K SERIES Low Voltage 3-Mode Dual 150mA LDO NO.EA-139-111025 OUTLINE The R5328K Series are dual 150mA voltage regulator ICs with 3-mode. The 3-mode describes that they are the inactive standby, the active fast mode, and the active low power mode. The two active modes can be switched over with ECO pin. With this function, the output voltage maintains the level, and the mode can be switched over. The minimum operating voltage is 1.4V, and the output voltage range is from 0.8V to 4.0V. Since.

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R5328K SERIES Low Voltage 3-Mode Dual 150mA LDO NO.EA-139-111025 OUTLINE The R5328K Series are dual 150mA voltage regulator ICs with 3-mode. The 3-mode describes that they are the inactive standby, the active fast mode, and the active low power mode. The two active modes can be switched over with ECO pin. With this function, the output voltage maintains the level, and the mode can be switched over. The minimum operating voltage is 1.4V, and the output voltage range is from 0.8V to 4.0V. Since the package for these ICs is DFN(PLP)2020-8, high density mounting of the ICs on boards is possible. FEATURES • Supply Current (Low Power Mode).......................Typ. 2.0μA×2 (VR1&VR2) (VOUT<2.0V) Typ. 2.5μA×2 (VR1&VR2) (VOUT >= 2.0V) • Supply Current (Fast Mode)..................................Typ. 75μA×2 (VR1&VR2) (VOUT<2.0V) Typ. 65μA×2 (VR1&VR2) (VOUT >= 2.0V) • Standby Mode .......................................................Typ. 0.1μA (VR1&VR2) • Input Voltage .........................................................1.4V to 6.0V • Output Voltage Range...........................................0.8V to 4.0V (0.1V steps) (For details, please refer to MARK INFORMATIONS.) • Dropout Voltage ....................................................Typ. 0.25V (IOUT=150mA, VOUT=2.8V) • Ripple Rejection (Fast Mode) ...............................Typ. 70dB (f=1kHz) • Line Regulation (Fast Mode).................................Typ. 0.02%/V • Output Voltage Accuracy (Fast Mode) ..................±1.0% • Output Voltage Accuracy (Low Power Mode) .......±1.2% • Temperature-drift Coefficient of Output Voltage....Typ. ±100ppm/°C • Package ................................................................DFN(PLP)2020-8 • Built-in fold-back protection circuit ........................Typ. 50mA (Current at short mode) • Ceramic Capacitor is recommended. ..................1.0μF • Built-in chip enable circuit (A/B: active high) (Depending on VIN and set VOUT. Refer to the electrical characteristics table.) APPLICATIONS • Power source for handheld communication equipment. • Power source for electrical appliances such as cameras, VCRs and camcorders. • Power source for battery-powered equipment. 1 R5328K BLOCK DIAGRAMS R5328KxxxA ECO1 7 CE1 8 VDD 3 ECO2 6 CE2 5 Error Amp. + Vref Current Limit R1_1 R2_1 Error Amp. + Vref Current Limit R1_2 R2_2 ECO1 7 CE1 8 VDD 3 ECO2 6 CE2 5 R5328KxxxB Error Amp. + Vref Current Limit R1_1 R2_1 Error Amp. + Vref Current Limit R1_2 R2_2 2 VOUT1 1 GND 4 VOUT2 2 VOUT1 1 GND 4 VOUT2 2 R5328K SELECTION GUIDE The output voltage, auto discharge function, etc. for the ICs can be selected at the user’s request. Product Name Package Quantity per Reel Pb Free Halogen Free R5328Kxxx∗-TR DFN(PLP)2020-8 5,000 pcs Yes Yes xxx : The combination of output voltage for each channel can be designated by serial numbers. (from 001) The output voltage for each channel can be set in the range from 0.8V to 4.0V in 0.1V steps. (For details, please refer to MARK INFORMATIONS.) ∗ : The auto discharge function at off state are options as follows. (A) without auto discharge function at off state (B) with auto discharge function at off state PIN CONFIGURATION Top View 876 • DFN(PLP)2020-8 Bottom View 5 567 8 1234 4321 PIN DESCRIPTIONS • DFN(PLP)2020-8 Pin No. 1 2 3 4 5 6 7 8 Symbol GND VOUT1 VDD VOUT2 CE2 ECO2 ECO1 CE1 Description Ground Pin Output Pin 1 Input Pin Output Pin 2 Chip Enable Pin 2 ("H" Active) Low Power/ Fast Mode Changer Pin2 Low Power/ Fast Mode Changer Pin1 Chip Enable Pin 1 ("H" Active) ∗) Tab is GND level. (They are connected to the reverse side of this IC.) The tab is better to be connected to the GND, but leaving it open is also acceptable. 3 R5328K ABSOLUTE MAXIMUM RATINGS Symbol VIN VCE1, VCE2 VECO1, VECO2 VOUT1, VOUT2 IOUT1, IOUT2 PD Topt Tstg Input Voltage Item Input Voltage (CE/ECO Pin) Output Voltage Output Current Power Dissipation (DFN(PLP)2020-8)∗ Operating Temperature Range Storage Temperature Range ∗) For Power Dissipation, please refer to PACKAGE INFORMATION. Rating 6.5 −0.3 to 6.5 −0.3 to VIN+0.3 160 880 −40 to 85 −55 to 125 Unit V V V mA mW °C °C ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured. 4 R5328K ELECTRICAL CHARACTERISTICS • R5328KxxxA/B VR1/VR2 Symbol Item Conditions MIN. TYP. Output Voltage (Fast Mode) VOUT Output Voltage (Low Power Mode) VIN−VOUT=1.0V IOUT=1mA VECO=VIN VIN−VOUT=1.0V IOUT=1mA VECO=GND VOUT >1.5V ×0.99 VOUT <= 1.5V −15 VOUT >1.5V ×0.988 VOUT <= 1.5V −18 IOUT Output Current VIN−VOUT=1.0V 150 ΔVOUT/ ΔIOUT VDIF Load Regulation (Fast Mode) Load Regulation (Low Power Mode) Dropout Voltage VIN−VOUT=1.0V, VECO=VIN 1mA <= IOUT <= 150mA 20 VIN−VO.


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