Document
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.
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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
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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.
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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.
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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.