 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| XC6212 Series High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control October 27, 2003 V3 ! Low Power Consumption ! Dropout Voltage ! ! ! ! Maximum Output Current Highly Accurate Output Voltage Range Low ESR capacitor compatible : 25A (TYP.) : 60mV @ 30mA : 200mV @ 100mA : up to 150mA : 2% ( 30mV less than 1.5V) : 0.9V ~ 6.0V (50mV Step) ! APPLICATIONS " " " " " " " Mobile phones, Cordless phones Wireless communication equipment Portable games Cameras, Video recorders Portable AV equipment Reference voltage Battery powered equipment ! GENERAL DESCRIPTION The XC6212 series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS processes. The series achieves high ripple rejection and low dropout and consists of a voltage reference, an error amplifier, a current limiter and a phase compensation circuit plus a driver transistor. Output voltage is selectable in 50mV increments within a range of 0.9V ~ 6.0V. The series is also compatible with low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations due to the excellent transient response of the series. The current limiter's foldback circuit also operates as a short protect for the output current limiter and the output pin. The CE function enables the output to be turned off, resulting in greatly reduced power consumption. ! FEATURES Maximum Output Current Dropout Voltage Maximum Operating Voltage Output Voltage Range Highly Accurate : 150mA : 200mV (IOUT=100mA) : 2.0V ~ 10V : 0.9V~6.0V (50mV Step) : 2% (VOUT>1.5V) : 30mV (VOUT1.5V) Low Power Consumption Standby Current High Ripple Rejection Operating Temperature Range Low ESR Capacitor Compatible Ultra Small Packages : 25mA (TYP.) : Less than 0.1mA (TYP.) : 70dB (10kHz) : -40OC ~ +85OC : Ceramic capacitor : SOT-25 (SOT-23-5) ! TYPICAL APPLICATION CIRCUIT ! TYPICAL PERFORMANCE CHARACTERISTICS 1 CL 1F 2 3 VOUT NC VSS VIN CE 5 Supply Current ISS (A) XC6212 x 302 50 40 30 20 10 0 0 2 4 6 8 10 4 CI N 1F Topr = 85OC = 25OC = - 40OC Input Voltage VIN (V) Semiconductor Ltd. 1 XC6212 Series High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control ! PIN CONFIGURATION NC 5 CE 4 ! PIN ASSIGNMENT PIN NUMBER SOT-25 1 2 3 PIN NAME VOUT VSS VIN CE NC FUNCTION Output Ground Power Input ON / OFF Control No Connection 1 2 VOUT VSS 3 VIN 4 5 SOT-25 (SOT-23-5) (TOP VIEW) ! BLOCK DIAGRAM VIN ON/OFF Control each circuit Current Limiter R2 R1 Voltage Reference CE VOUT VSS ! SELECTION GUIDE The following options for the CE pin logic and internal pull-up/down are available: Active 'High' + no pull-down resistor built-in (standard) Active 'High' + 2.0M pull-down resistor built-in ! ORDERING INFORMATION XC6212123456 DESIGNATOR SYMBOL A B 1 C D DESCRIPTION Active 'High', Pull-down resistor built in (Semi-custom) Active 'High', No pull-down resistor built in (Standard) Active 'Low', Pull-up resistor built in (Semi-custom) Active 'Low', No pull-up resistor built in (Semi-custom) Output Voltage : 2 3 Integer e.g. 3.0V = 2 : 3, 3 : 0 6 R L 5 4 A DESIGNATOR SYMBOL DESCRIPTION Output Voltage : 100mV Step 2 Accuracy : within 2% e.g. 2=2, 3=8, 4=2 2.80V Output Voltage : 50mV Step Accuracy : within 2% e.g. 2=2, 3=8, 4=A 2.85V Package Type : SOT-25 (SOT-23-5) Device Orientation : Embossed Tape : Standard Feed Embossed Tape : Reverse Feed Semiconductor Ltd. M 2 XC6212 Series High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control ! PACKAGING INFORMATION # SOT-25 (SOT-23-5) ! MARKING RULE # SOT-25 (SOT-23-5) 1 Represents product series SYMBOL 9 PRODUCT SERIES XC6212xxxxMx 1234 2 Represents the type of voltage regulator SYMBOL VOUT 100mV STEPS VOUT=0.1~3.0V VOUT=3.1~6.0V SOT-25 (SOT-23-5) (TOP VIEW) PRODUCT SERIES XC6212AxxxMx XC6212BxxxMx XC6212CxxxMx XC6212DxxxMx VOUT 50mV STEPS VOUT=0.15~3.05V VOUT=3.15~6.05V V X Y Z A B C D E F H K L M N P 3 Represents output voltage SYMBOL 0 1 2 3 4 5 6 7 8 9 A B C D E 0.90 1.00 1.10 1.20 1.30 1.40 1.50 OUTPUT VOLTAGE (V) 3.10 3.20 3.30 3.40 3.50 3.60 3.70 3.80 3.90 4.00 4.10 4.20 4.30 4.40 4.50 0.95 1.05 1.15 1.25 1.35 1.45 1.55 3.15 3.25 3.35 3.45 3.55 3.65 3.75 3.85 3.95 4.05 4.15 4.25 4.35 4.45 4.55 SYMBOL F H K L M N P R S T U V X Y Z 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.30 2.40 2.50 2.60 2.70 2.80 2.90 3.00 OUTPUT VOLTAGE (V) 4.60 4.70 4.80 4.90 5.00 5.10 5.20 5.30 5.40 5.50 5.60 5.70 5.80 5.90 6.00 1.65 1.75 1.85 1.95 2.05 2.15 2.25 2.35 2.45 2.55 2.65 2.75 2.85 2.95 3.05 4.65 4.75 4.85 4.95 5.05 5.15 5.25 5.35 5.45 5.55 5.65 5.75 5.85 5.95 - 4 Represents production lot number 0 to 9, A to Z, reversed character of 0 to 9 and A to Z repeated (G,I,J,O,Q excepted) Semiconductor Ltd. 3 XC6212 Series High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control ! ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage Output Current Output Voltage CE Input Voltage Power Dissipation SOT-23-5 Operating Ambient Temperature Storage Temperature SYMBOL VIN IOUT VOUT VCE Pd Topr Tstg RATINGS 12 500 VSS -0.3 ~ VIN +0.3 VSS -0.3 ~ VIN +0.3 250 -40 ~ +85 -55 ~ +125 UNITS V mA V V mW O C C O ! ELECTRICAL CHARACTERISTICS XC6212B SERIES PARAMETER Output Voltage 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 CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current (NOTE 1) (NOTE 2) (NOTE 3) (NOTE 4) (NOTE 5) (NOTE 6) SYMBOL VOUT (E) IOUTMAX VOUT Vdif1 Vdif2 IDD Istby VOUT / VIN VOUT VIN VOUT / Topr VOUT PSRR Ilim Ishort VCEH VCEL ICEH ICEL VCE=VIN VCE=VSS -0.10 -0.10 1.60 IOUT=30mA -40 CTopr85 C IOUT=50mA, f=10kHz 70 300 50 VIN 0.25 0.10 0.10 O O Ta=25OC CONDITIONS IOUT=30mA MIN x 0.98 150 1mAIOUT100mA IOUT=30mA IOUT=100mA VCE=VIN VCE=VSS VOUT(T)+1.0VVIN10V IOUT=30mA 2 100 10 V ppm/ O C dB mA mA V V A A 15 E-1 (page 5) E-2 (page 5) 25 0.01 0.01 50 0.10 0.20 50 TYP. VOUT(T) MAX x 1.02 UNITS V mA mV mV mV A A %/V CIRCUIT 1 1 1 1 2 2 1 1 4 1 1 1 2 2 2 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 Semiconductor Ltd. 4 XC6212 Series High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control ! DROPOUT VOLTAGE SYMBOL PARAMETER E-1 Vdif 1 MIN 1100 500 200 100 TYP 1100 500 200 120 80 80 80 70 70 60 60 60 50 MAX 1110 510 210 150 120 120 120 100 100 90 90 80 70 MIN 1100 500 200 100 E-2 Vdif 2 TYP 1150 550 300 280 240 240 240 220 220 200 200 180 160 MAX 1200 600 400 380 350 330 310 290 270 270 250 230 210 OUTPUT VOLTAGE 0.9 1.5 1.8 1.9 2.0 2.1 ~ 2.2 2.3 ~ 2.4 2.5 ~ 2.7 2.8 ~ 2.9 3.0 3.1 ~ 3.9 4.0 ~ 4.9 5.0 ~ 6.0 * The input voltage 2.0V (Min.) is needed to operate the series. When the output voltage is less than 2.0V, 2.0V-VOUT(T) of dropout voltage is needed at minimum. Semiconductor Ltd. 5 XC6212 Series High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control ! TEST CIRCUITS Circuit 1 VIN VOUT A CE V CIN=1.0F (ceramic) VSS CL=1.0F (ceramic) V RL V Circuit 2 A A VIN VOUT OPEN CE VSS Circuit 3 VIN VOUT CE CIN=1.0F (ceramic) VSS CL=1.0F (ceramic) F.F.T IOUT=10mA Circuit 4 VIN VIN={VOUT+1} VDC +0.5Vp-pAC VOUT IOUT=50mA CE V VSS CL=1.0F (ceramic) V Semiconductor Ltd. 6 XC6212 Series High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control ! OPERATIONAL EXPLANATION Output voltage control with the XC6212 series : VIN CE ON/OFF Control The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-Channel MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output voltage at the VOUT pin is controlled & 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 CE pin's signal. each circuit Current Limiter VOUT R2 R1 Voltage Reference VSS Low ESR Capacitors With the XC6212 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 an output capacitor (CL) is connected as close as possible to the output pin (VOUT) and the VSS pin. Please use an output capacitor with a capacitance value of at least 1F. Also, please connect an input capacitor (CIN) of 0.1F between the VIN pin and the VSS pin in order to ensure a stable power input. Current Limiter, Short-Circuit Protection The XC6212 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the operations of the current limiter and circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, output voltage drops further and output current decreases. When the output pin is shorted, a current of about 50mA flows. CE Pin The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6212 series. In shutdown mode, output at the VOUT pin will be pulled down to the VSS level via R1 & R2. The operational logic of the IC's CE pin is selectable (please refer to the selection guide on page 3). Note that as the standard XC6212B Type is ' Active High/No Pull Down', operations will become unstable with the CE pin open. Although the CE pin is equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the CE pin input current will increase when the IC is in operation. We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the CE pin. If this IC is used with the correct specifications for the CE pin, the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry. ! NOTES on USE 1 Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded. 2 Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. Please strengthen VIN and VSS wiring in particular. 3 Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible. Semiconductor Ltd. 7 |
Price & Availability of XC6212D302ML
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |