R5326x SERIES
Automatic Mode Shift 2ch 150mA LDO
NO.EA-138-070806
OUTLINE
The R5326x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, Typ. 5.5µA low supply current, and remarkably improved transient response compared with the conventional low supply current voltage regulators. The supply current of IC itself is automatically shifts between fast mode and low power mode depending on the load current. (The current threshold is fixed internally.) Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting the output voltage, a current limit circuit for preventing from the destruction by an over current, and so on. The chip enable function realizes the standby mode with ultra low supply current. Since the packages for these ICs are SOT-23-6 and PLP1820-6, and chip size package, WLCSP-6-P1, 2ch LDO regulators are included in each package, high density mounting of the ICs on boards is possible.
FEATURES
Supply Current (Low Power Mode) ................... Typ. 5.5µA×2 (VR1&VR2) (IOUT=0mA) Supply Current (Fast Mode).............................. Typ. 50µA×2 (VR1&VR2) (IOUT=10mA) Standby Current ................................................ Typ. 0.1µA (VR1&VR2) Input Voltage ..................................................... 1.4V to 6.0V Output Voltage .................................................. 0.8V to 4.2V Dropout Voltage ................................................ Typ. 0.19V (IOUT=150mA, VOUT=2.8V) Output Voltage Accuracy................................... ±1.0% (VOUT > 1.5V) = Ripple Rejection ................................................ Typ. 70dB (f=1kHz) Typ. 60dB (f=10kHz) • Line Regulation ................................................. Typ. 0.02%/V • Packages ......................................................... WLCSP-6-P1, PLP1820-6, SOT-23-6 • Built-in fold-back protection circuit .................... Typ. 50mA (Current at short mode) • Ceramic Capacitor is recommended. .............. 1.0µF to 3.3µF (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
R5326x
BLOCK DIAGRAMS
R5326xxxxA
CE1 VOUT1
Error Amp. R1_1 Vref Current Limit
R2_1
VDD
Error Amp.
GND
R1_2
Vref Current Limit
R2_2
CE2
VOUT2
R5326xxxxB
CE1 VOUT1
Error Amp. R1_1 Vref Current Limit
R2_1
VDD
Error Amp.
GND
R1_2
Vref Current Limit
R2_2
CE2
VOUT2
2
R5326x
SELECTION GUIDE
The output voltage, auto discharge function*, and the taping type for the ICs can be selected at the user's request. The selection can be made with designating the part number as shown below;
R5326xxxxx-xx-x ←Part Number
↑↑↑↑↑ a bc d e Code a Contents Designation of Package Type: N: SOT-23-6 K: PLP1820-6 Z: WLCSP-6-P1 Setting combination of 2ch Output Voltage (VOUT): Serial Number for Voltage Setting, Stepwise setting with a step of 0.1V in the range of 0.8V to 4.2V is possible for each channel. Designation of Mask Option: A: without auto discharge function* at OFF state. B: with auto discharge function* at OFF state. Designation of Taping Type: Ex. TR (refer to Taping Specifications; for SOT-23-6 and PLP1820-6), E2 (for WLCSP-6-P1) Designation of composition of plating: −F : Lead free plating (SOT-23-6, WLCSP-6-P1) None : Au plating (PLP1820-6)
b
c
d
e
*) When the mode is into standby with CE signal, auto discharge transistor turns on, and it makes the turn-off speed faster than normal type.
3
R5326x
PIN CONFIGURATIONS
SOT-23-6 Top View
6 5 4 6 5 4
PLP1820-6 Bottom View
4 5 6 1
WLCSP-6-P1 Mark Side Bump Side
6
6
1
(mark side)
2
5
5
2
3 1 2 3 1 2 3 3 2 1
4
4
3
PIN DESCRIPTIONS
•
SOT-23-6, WLCSP-6-P1
Pin No. 1 2 3 4 5 6 Symbol VOUT1 VDD VOUT2 CE2 GND CE1 Description Output Pin 1 Input Pin Output Pin 2 Chip Enable Pin 2 Ground Pin Chip Enable Pin 1
•
PLP1820-6
Pin No. 1 2 3 4 5 6 Symbol VOUT2 VDD VOUT1 CE1 GND CE2 Description Output Pin 2 Input Pin Output Pin 1 Chip Enable Pin 1 Ground Pin Chip Enable Pin 2
∗ Tab in the parts have GND level. (They are connected to the back side of this IC.) Do not connect to other wires or land patterns.
ABSOLUTE MAXIMUM RATINGS
Symbol VIN VCE VOUT IOUT1,IOUT2 PD Input Voltage Input Voltage (CE Pin) Output Voltage Output Current Power Dissipation (SOT-23-6) *
1
Item
Rating 6.5 −0.3 to 6.5 −0.3 to VIN+0.3 200 420 880
1
Unit V V V mA mW °C °C
Power Dissipation (PLP1820-6) *1 Power Dissipation (WLCSP-6-P1) *
633 −40 to 85 −55 to 125
Topt Tstg
Operating Temperature Range Storage Temperature Range
*1) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
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R5326x
ELECTRICAL CHARACTERISTICS
•
R5326xxxxA/B
Topt=25°C
VR1/VR2 Symbol VOUT IOUT Item Output Voltage Output Current Conditions VIN−VOUT=1V IOUT=1mA VIN−VOUT=1V VIN−VOUT=1V 1mA < IOUT < 150mA = = 0.8V 0.9V 1.0V VDIF Dropout Voltage IOUT=150mA 1.2V 1.5V 2.0V Supply Current (Low Power Mode) Supply Current (Fast Mode) Standby Current Low Power Mode Current threshold Fast Response Mode Current threshold
< = < = < = < = < = < =
MIN. ×0.99 −15 150
< =
TYP.
MAX. ×1.01 +15
Unit V mV mA
VOUT > 1.5V VOUT 1.5V
∆VOUT/∆IOUT Load Regulation
80 0.62 0.58 0.48 0.40 0.31 0.22 0.19 5.5 50 0.1 0.6 3 ±0.02 70 ±0.2 1.0 0.87 0.78 0.69 0.59 0.48 0.37 0.27 16
mV
VOUT
