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NCMOS Low Power Consumption NSmall Input-Output Voltage Differential : 0.1V @ 100mA NMaximum Output Current : 1000mA NOutput Voltage Range : 2V~6V NOutput Voltage Accuracy : 2%
GPortable Cameras and Video Recorders GBattery Powered Equipment GPalmtops GReference Voltage Sources
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The XC62E series are a group of positive output voltage regulators that can supply up to 1A of output current using an external transistor. Low power and high accuracy are achieved through CMOS process and laser trimming technologies. The series consists of a high precision voltage reference, an error correction circuit and a short-circuit protected output driver. In stand-by mode, supply current can be dramatically cut. Since the input-output voltage differential is small, loss control efficiency is good. The XC62E is particularly suited for use with battery operated portable products, and products where supply current regulation is required. The series comes in an ultra small SOT-25 package. In connection with the CE function, apart from the negative logic XC62EP series, a positive logic XC62ER series (custom) is also available.
Ultra Small Input-Output Voltage Differential : 100mA of output current is available with a differential of 0.1V. (Performance depends on the external transistor characteristics.) Maximum Output Current : 1000mA Output Voltage Range : 2V ~ 6V in 0.1V increments Highly Accurate : Set-up voltage 2% Low Power Consumption : Typ.50A (VOUT=5.0V) : Typ.0.2A (Stand-by) Output Voltage Temperature Characteristics : Typ.100ppm/C Input Stability : Typ.0.1%/V Ultra Small Packages : SOT-25 mini-mold
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PIN NUMBER 1 2 3 4 5
PIN NAME VSS VIN VOUT EXT CE/CE
FUNCTION Ground Supply voltage input Regulated voltage output Base current control Chip enable
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SERIES XC62ER XC62EP
CE H L H L
OUTPUT VOLTAGE ON OFF OFF ON
H=High Level L=Low Level
GOrdering Information
DESIGNATOR a
DESCRIPTION CE pin Logic: R=Positive P=Negative Output Voltage 30=3.0V 50=5.0V Temperature Coefficients: 0=100ppm (typical)
DESIGNATOR
DESCRIPTION Package Type M=SOT-25
e
b
c
f d Output Voltage Accuracy: 1=1.0%(Semi-custom) 2=2.0%
Device Orientation R=Embossed Tape (Standard Feed) L=Embossed Tape (Reverse Feed)
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GSOT-25
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q
w
R TYPE POSITIVE VOLTAGE LOGIC SYMBOL _ 2 _ 3 _ 4 _ 5 _ 6 VOLTAGE(V) 2.e 3.e 4.e 5.e 6.e P TYPE NEGATIVE VOLTAGE LOGIC SYMBOL 2 3 4 5 6 VOLTAGE(V) 2.e 3.e 4.e 5.e 6.e
e
R TYPE POSITIVE VOLTAGE LOGIC SYMBOL _ 0 _ 1 _ 2 _ 3 _ 4 _ 5 _ 6 _ 7 _ 8 _ 9 VOLTAGE(V) w.0 w.1 w.2 w.3 w.4 w.5 w.6 w.7 w.8 w.9 P TYPE NEGATIVE VOLTAGE LOGIC SYMBOL 0 1 2 3 4 5 6 7 8 9 VOLTAGE(V) w.0 w.1 w.2 w.3 w.4 w.5 w.6 w.7 w.8 w.9
r
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3
Ta=25C PARAMETER VIN Input Voltage VOUT Output Voltage CE/CE Input Voltage EXT Output Voltage EXT Output Current Continuous Total Power Dissipation Operating Ambient Temperature Storage Temperature SYMBOL VIN VOUT VCE VEXT IEXT Pd Topr Tstg RATINGS 12 VSS-0.3~VIN+0.3 VSS-0.3~VIN+0.3 12 50 150 -30~+80 -40~+125 UNITS V V V V mA mW C C
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XC62EP3002 VOUT(T)=3.0V (Note1)
PARAMETER Output Voltage Maximum Output Current* Load Stability* Input-OutputVoltage Differential (Note3) Supply Current1 Supply Current2 Input Stability* Input Voltage Output Voltage Temperature Characteristics* EXT Output Voltage EXT Leak Current CE "High" Level Voltage CE "Low" Level Voltage CE "High" Level Current CE "Low" Level Current SYMBOL VOUT(E)
(Note2)
Ta=25C CONDITIONS IOUT=50mA VIN=4.0V VIN=4.0V VIN=4.0V 1mA IOUT 100mA IOUT=100mA VIN=4.0V, VCE=VSS VIN=8.0V,VCE=VIN IOUT=50mA 4.0V VIN 8.0V 0.1 -60 MIN 2.940 TYP 3.000 1000 60 MAX 3.060 UNITS V mA mV
IOUT max. VOUT Vdif ISS1 ISS2 VOUT VIN * VOUT VIN VOUT Topr * VOUT VEXT ILEAK VCEH VCEL ICEH ICEL
100 50 80 0.6 0.3 8
mV A A %/V V ppm/C 8 0.5 V A V 0.25 V A A
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IOUT=10mA -30C Topr 80C
100
1.5
VCE=VIN VCE=VSS -0.2 -0.05
0.1 0
The characteristics for the XC62ER series are the same as above except for the CE operating logic which is the opposite. Note: 1. VOUT(T)=Specified Output Voltage . 2. 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). 3. Vdif= {VIN1 (Note5)-VOUT1 (Note4)} 4. VOUT1= A voltage equal to 98% of the Output Voltage whenever an amply stabilised IOUT {VOUT(T)+1.0V} is input. 5. VIN1= The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased. 6. The characteristics for those parameters marked with an asterisk* are liable to vary depending on which transistor is used. Please use a transistor with a low saturation voltage level and hFE equal to 100 or more. 7. The maximum output current value is not a value representing continuous output due to the limitations of the 2AS1213 transistor's power dissipation.
351
XC62EP4002 VOUT(T)=4.0V (Note1)
PARAMETER Output Voltage Maximum Output Current* Load Stability* Input-Output Voltage Differential (Note3) Supply Current1 Supply Current2 Input Stability* SYMBOL VOUT(E) (Note2) IOUT max. VOUT Vdif ISS1 ISS2 VOUT VIN * VOUT VIN VOUT Topr * VOUT VEXT ILEAK VCEH VCEL ICEH ICEL VCE=VIN VCE=VSS -0.2 -0.05 1.5 0.25 0.1 0 IOUT=10mA -30C Topr 80C 100 8 0.5 CONDITIONS IOUT=50mA VIN=5.0V VIN=5.0V VIN=5.0V 1mA IOUT 100mA IOUT=100mA VIN=5.0V, VCE=VSS VIN=8.0V,VCE=VIN IOUT=50mA 5.0V VIN 8.0V -60 100 50 80 0.6 0.1 0.3 8 MIN 3.920 TYP 4.000 1000 60 MAX 4.080
Ta=25C UNITS V mA mV mV A A %/V V ppm/C V A V V A A
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Input Voltage Output Voltage Temperature Characteristics* EXT Output Voltage EXT Leak Current CE "High" Level Voltage CE "Low" Level Voltage CE "High" Level Current CE "Low" Level Current
XC62EP5002 VOUT(T)=5.0V (Note1)
PARAMETER Output Voltage Maximum Output Current* Load Stability* Input-Output Voltage Differential (Note3) Supply Current1 Supply Current2 Input Stability* Input Voltage Output Voltage Temperature Characteristics* EXT Output Voltage EXT Leak Current CE "High" Level Voltage CE "Low" Level Voltage CE "High" Level Current CE "Low" Level Current SYMBOL VOUT(E) (Note2) IOUT max. VOUT Vdif ISS1 ISS2 VOUT VIN * VOUT VIN VOUT Topr * VOUT VEXT ILEAK VCEH VCEL ICEH ICEL VCE=VIN VCE=VSS -0.2 -0.05 1.5 0.25 0.1 0 IOUT=10mA -30C Topr 80C 100 8 0.5 CONDITIONS IOUT=50mA VIN=6.0V VIN=6.0V VIN=6.0V 1mA IOUT 100mA IOUT=100mA VIN=6.0V, VCE=VSS VIN=8.0V,VCE=VIN IOUT=50mA 6.0V VIN 8.0V -60 100 50 80 0.6 0.1 0.3 8 MIN 4.900 TYP 5.000 1000 60 MAX 5.100
Ta=25C UNITS V mA mV mV A A %/V V ppm/C V A V V A A
The characteristics for the XC62ER series are the same as above except for the CE operating logic which is the opposite. Note: 1. VOUT(T)=Specified Output Voltage . 2. 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). 3. Vdif= {VIN1 (Note5)-VOUT1 (Note4)} 4. VOUT1= A voltage equal to 98% of the Output Voltage whenever an amply stabilised IOUT {VOUT(T)+1.0V} is input. 5. VIN1= The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased. 6. The characteristics for those parameters marked with an asterisk* are liable to vary depending on which transistor is used. Please use a transistor with a low saturation voltage level and hFE equal to 100 or more. 7. The maximum output current value is not a value representing continuous output due to the limitations of the 2AS1213 transistor's power dissipation.
352
GStandard Circuit

3
GFunctional Description
Output voltage (VOUT) can be fixed by revising the external transistor's base current. This can be done by comparing the detected voltage level and the set voltage power supply level. With the XC62EP (CE negative voltage), if a voltage above the CE pin's "H" level is applied, the IC will enter stand-by mode where the base and differential amplifier's currents are regulated.
GSuggestions for External Components
1. PNP Transistor The selection of a transistor should take into account output current, input voltage and power dissipation for each specific application. It is recommended that a transistor that has a low output saturated voltage (VCE) and high hFE characteristics be used. 2. RB Resistor Although the IC unit is protected by a base current remitter circuit, it is recommended that a resistor (RB) be connected between the transistor's base and the IC's EXT pin to protect the transistor. Required output current can be calculated using the following equation although characteristic variations and conditions of use should be carefully checked before use. The following equation also indicates the conditions needed to obtain IOUT (max.) at VIN (min.). However, the larger the input current, the larger the output current (IOUT) that can be obtained. VIN(min)-1.2(V) RB 0.7(V) RBE IOUT(max) hFE
3. RBE Resistor, CL Capacitor To prevent oscillation due to output load variation, use of a phase compensation capacitor CL is recommended. Please use a Tantalum capacitor of at least 10F. Please also use an RBE resistor of less than 47k. An RBE resistor of between 20k and 47k is recommended for less power consumption. 4. Input Impedance In order to control oscillation brought about as a result of impedance at the power supply line, connect a capacitor of 10F or more (Tantalum) between the external transistor's emitter and the ground pin.
GSpecial Note
1. Protection Circuit The built-in protect circuit is to protect the IC only. Therefore to prevent output shorts and overshoot current through the transistor, use of a resistor RB or an overshoot current protection circuit is recommended. Care should also be taken with the transistor's power dissipation.
353
(1) OUTPUT VOLTAGE vs. OUTPUT CURRENT

3
(2) OUTPUT VOLTAGE vs. INPUT VOLTAGE

354
(3) INPUT/OUTPUT VOLTAGE DIFFERENTIAL vs. OUTPUT CURRENT

(4) SUPPLY CURRENT vs. INPUT VOLTAGE
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(5) OUTPUT VOLTAGE vs. AMBIENT TEMPERATURE

(6) SUPPLY CURRENT vs. AMBIENT TEMPERATURE

355
(7) INPUT TRANSIENT RESPONSE
3

356
(8) LOAD TRANSIENT RESPONSE

3
(9) RIPPLE REJECTION RATE
357

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