Dual LDO Regulators Low ESR Cap Compatible

XC6401 Series Dual LDO Regulators, Low ESR Cap. Compatible Preliminary November 7, 2003 Ver. 4 ! Low Power Consumption ! Dropout Voltage ! ! ! ! ! Output Voltage Range Output Current High Ripple Rejection Rate Low Output Noise Low ESR capacitor compatible : 25 µA (TYP) : 30mV @ 30mA : 100mV @ 100mA : 0.8 V to 5.0 V : More than 150 mA (300mA limit) : 70 dB @ 1kHz ! APPLICATIONS " " " " " " Mobile phones (PDC, GSM, CDMA, IMT2000 etc.) Cordless phones and radio communication equipment Portable games Cameras, Video recorders Portable AV equipment PDAs ! GENERAL DESCRIPTION ! FEATURES : 150mA or more (300mA limit) : 100mV (IOUT=100mA) : 1.5V ~ 6.0V : 0.8V ~ 5.0V (50mV Step) : ±2% (VOUT>1.5V) : ±30mV (VOUT≤1.5V) : 25 mA (TYP.) : Less than 0.1µA (TYP.) : 70dB (1kHz) : -40OC ~ +85OC : Ceramic capacitor : SOT-26W USP-6B The XC6401 series are highly accurate, Dual, low noise, CMOS LDO Maximum Output Current voltage regulators. Performance features of the series includes low Dropout Voltage output noise, high ripple rejection ratio, low dropout and very fast turn-on times. Operating Voltage Range The XC6401 includes a reference voltage source, error amplifiers, Output Voltage Range driver transistors, current limiters and phase compensators internally. Highly Accurate The XC6401’s current limiters' foldback circuit also operates as a short protect for the output current limiter. The output voltage for each regulator is set independently by laser Low Power Consumption trimming. Voltages are selectable in 50mV steps within a range of 0.8V to 5.0V. The XC6401 series is also fully compatible with low Standby Current ESR ceramic capacitors, reducing cost and improving output stability. High Ripple Rejection This high level of output stability is maintained even during frequent Operating Temperature Range load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of Low ESR Capacitor Compatible frequencies. www.DataSheet4U.com Ultra Small Packages The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption. The XC6401 series is available in the SOT-26W or USP-6B ‘chipscale’ package. ! TYPICAL APPLICATION CIRCUITS EN1 VOUT1 6 1 2 ! TYPICAL PERFORMANCE CHARACTERISTICS # Cross Talk CL1 1uF XC6401 (VR1:3.0V, VR2:2.85V) VIN=4.0V, CIN= CL=1uF (ceramics) 3.1 VR1 Output Voltage (3.0V) 5 VIN VSS CIN 1uF EN2 VOUT2 4 3 CL2 1uF 500 400 300 VR2 Output Voltage (2.85V) 100mA 3.0 2.9 2.8 2.7 10mA 200 100 0 1 2 CIN 1uF 3 EN2 VOUT2 VIN VOUT1 EN1 VSS 6 5 4 CL1 1uF CL2 1uF VR1 Output Current 2.6 Time (40usec/div) Semiconductor Ltd. Data Sheet 1 Output Current 1 IOUT (mA) Output Voltage VOUT (V) XC6401 Series Dual LDO Regulators, Low ESR Cap. Compatible Preliminary ! PIN CONFIGURATION VOUT1 6 VSS 5 VOUT2 4 EN2 VIN EN1 1 EN1 2 VIN SOT-26W (TOP VIEW) 3 EN2 USP-6B (TOP VIEW) 1 2 3 6 5 4 VOUT2 VOUT1 VSS ! PIN ASSIGNMENT PIN NUMBER SOT-26W 1 2 3 4 5 6 USP-6B 3 2 1 6 4 5 EN1 VIN EN2 VOUT2 VSS VOUT1 ON/OFF Control 1 Power Input ON/OFF Control 2 Output 2 Ground Output 1 PIN NAME FUNCTION * A Pin number 1 is under the marking of the leftmost of 4 digits. ! PRODUCT CLASSIFICATION " SELECTION GUIDE The following options for the Regulator 1, 2, the EN pin logic, internal pull-up / down are available. " ORDERING INFORMATION DESIGNATOR SYMBOL XC6401123456 DESCRIPTION DESIGNATOR SYMBOL DESCRIPTION Internally set sequential number relating output voltage of each regulators Regulator 1, EN type E Active 'High' (Pull-down resistor built in) 1 F Active 'High' (No pull-down, resistor built in) 34 01 ~ Regulator 1 Output Voltage Range : 0.8 ~ 5.0 V Regulator 2 Output Voltage Range : 0.8 ~ 5.0 V Both 1 and 2 can be set 50 mV steps Packaging Types G Active 'Low' (Pull-down resistor built in) H Active 'Low' (No pull-down, resistor built in) Regulator 2, EN type E Active 'High' (Pull-down resistor built in) 5 D USP-6B M SOT-26W Device Orientation 2 F Active 'High' (No pull-down, resistor built in) G Active 'Low' (Pull-down resistor built in) 6 R Embossed Tape: Standard Feed H Active 'Low' (No pull-down, resistor built in) L Embossed Tape: Reverse Feed Semiconductor Ltd. Data Sheet 2 XC6401 Series Dual LDO Regulators, Low ESR Cap. Compatible Preliminary ! ABSOLUTE MAXIMUM RATINGS Ta = 25OC PARAMETER Input Voltage Output Current Output Voltage EN Pin Voltage Power Dissipation SOT-26W USP-6B Operating Ambient Temperature Storage Temperature Topr Tstg SYMBOL VIN IOUT1 + IOUT2 VOUT VEN Pd RATINGS 6.5 700 VSS -0.3 ~ VIN +0.3 VSS -0.3 ~ VIN +0.3 250 100 -40 ~ +85 -55 ~ +125 O UNITS V mA V V mW C C O ! ELECTRICAL CHARACTERISTICS Regulator 1, Regulator 2 PARAMETER SYMBOL XC6401FFxx Ta=25OC CONDITIONS VIN=VOUT (T) + 1.0V IOUT=30mA VIN=VOUT (T) + 1.0V 1mA≤IOUT≤100mA IOUT=30mA IOUT=100mA VIN=VEN=VOUT (T) + 1.0V, IOUT=0mA VIN=VOUT (T) + 1.0V, VEN=VSS VOUT(T)+1.0V≤VIN≤6.0V IOUT=30mA 1.5 IOUT=30mA -40OC≤Topr≤85OC IOUT=30mA, f=1kHz VIN=VOUT (T) + 1.0V, VEN=VIN VIN=VOUT (T) + 1.0V, VEN=VIN MIN × 0.98 150 TYP MAX × 1.02 UNITS CIRCUIT Output Voltage (Note 7) Maximum Output Current Load Regulation Dropout Voltage Supply Current Standby Current Line Regulation Input Voltage Output Voltage Temperature Characteristics Ripple Rejection Rate Current Limiter Short-circuit Current EN "High" Voltage EN "Low" Voltage EN "High" Current EN "Low" Current NOTE (NOTE 1) (NOTE 2) (NOTE 3) (NOTE 4) (NOTE 5) (NOTE 6) (NOTE 7) VOUT (E) IOUTMAX ∆VOUT Vdif1 Vdif2 ISS ISTB ∆VOUT / ∆VIN ⋅ VOUT VIN ∆VOUT / ∆Topr ⋅ VOUT PSRR Ilim Ishort VENH VENL IENH IENL VOUT(T) V mA 1 1 1 1 2 3 1 15 E-1 E-2 25 0.01 0.01 60 mV mV mV 45 0.10 0.20 6.0 µA µA %/V V ppm/ O C dB mA mA ±100 70 300 30 1.60 VIN 0.25 1 5 1 1 4 4 4 4 V V µA µA VIN=VEN=VOUT (T) + 1.0V VIN=VEN=VOUT (T) + 1.0V, VEN=VSS -0.10 -0.10 0.10 0.10 VOUT(T)=Specified Output Voltage VOUT(E)=Effective Output Voltage (I.e. the output voltage when "VOUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT value). Vdif={VIN1(NOTE5)-VOUT1(NOTE4)} VOUT1=A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input. VIN1=The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased. Unless otherwise stated, VIN=VOUT(T)+1.0V If VOUT (T) ≤ 1.45V, MIN VOUT (T) - 30mV MAX VOUT (T) + 30mV Semiconductor Ltd. Data Sheet 3 XC6401 Series Dual LDO Regulators, Low ESR Cap. Compatible Preliminary ! DROPOUT VOLTAGE SETTING OUTPUT VOLTAGE (V) VOUT (T) 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 MIN. 0.770 0.820 0.870 0.920 0.970 1.020 1.070 1.120 1.170 1.220 1.270 1.320 1.370 1.420 1.470 1.519 1.568 1.617 1.666 1.715 1.764 1.813 1.862 1.911 1.960 2.009 2.058 2.107 2.156 2.205 2.254 2.303 2.352 2.401 2.450 2.499 2.548 2.597 2.646 2.695 2.744 2.793 2.842 2.891 OUTPUT VOLTAGE (V) VOUT MAX. 0.830 0.880 0.930 0.980 1.030 1.080 1.130 1.180 1.230 1.280 1.330 1.380 1.430 1.480 1.530 1.581 1.632 1.683 1.734 1.785 1.836 1.887 1.938 1.989 2.040 2.091 2.142 2.193 2.244 2.295 2.346 2.397 2.448 2.499 2.550 2.601 2.652 2.703 2.754 2.805 2.856 2.907 2.958 3.009 35 55 110 160 40 60 120 170 45 65 140 180 50 75 150 200 55 100 165 250 60 200 180 300 65 300 200 400 80 400 240 500 100 500 270 600 200 600 350 700 MIN. 300 DROPOUT VOLTAGE 1 E-1 (mV) Vdif 1 MAX. 700 MIN. 400 DROPOUT VOLTAGE 2 E-2 (mV) Vdif 2 MAX. 800 Semiconductor Ltd. Data Sheet 4 XC6401 Series Dual LDO Regulators, Low ESR Cap. Compatible Preliminary ! DROPOUT VOLTAGE SETTING OUTPUT VOLTAGE (V) VOUT (T) 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 3.75 3.80 3.85 3.90 3.95 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 4.45 4.50 4.55 4.60 4.65 4.70 4.75 4.80 4.85 4.90 4.95 5.00 MIN. 2.940 2.989 3.038 3.087 3.136 3.185 3.234 3.283 3.332 3.381 3.430 3.479 3.528 3.577 3.626 3.675 3.724 3.773 3.822 3.871 3.920 3.969 4.018 4.067 4.116 4.165 4.214 4.263 4.312 4.361 4.410 4.459 4.508 4.557 4.606 4.655 4.704 4.753 4.802 4.851 4.900 OUTPUT VOLTAGE (V) VOUT MAX. 3.060 3.111 3.162 3.213 3.264 3.315 3.366 3.417 3.468 3.519 3.570 3.621 3.672 3.723 3.774 3.825 3.876 3.927 3.978 4.029 4.080 4.131 4.182 4.233 4.284 4.335 4.386 4.437 4.488 4.539 4.590 4.641 4.692 4.743 4.794 4.845 4.896 4.947 4.998 5.049 5.100 30 45 100 150 MIN. DROPOUT VOLTAGE 1 E-1 (mV) Vdif 1 MAX. MIN. DROPOUT VOLTAGE 2 E-2 (mV) Vdif 2 MAX. Semiconductor Ltd. Data Sheet 5 XC6401 Series Dual LDO Regulators, Low ESR Cap. Compatible Preliminary ! OPERATIONAL EXPLANATION Output voltage control with the XC6401 series: The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-Channel MOSFETs, which are connected to the VOUT1 and VOUT2 pins, are then driven by the subsequent output signal. The output voltages at the VOUT1 and VOUT2 pins are controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the EN pin's signal. EN1 ON/OFF Control +Error Amp1 Current Limit VOUT1 R11 R12 VR1 Each Circuit VIN VSS + VR2 Each Circuit Voltage Reference Error Amp2 Current Limit VOUT2 R21 R22 EN2 ON/OFF Control Low ESR Capacitors With the XC6401 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that output capacitors (CL1, CL2) is connected as close as possible to the output pins (VOUT1 and VOUT2) and the VSS pin. Please use an output capacitor with a capacitance value of at least 1µF. A