Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR General Description Features The AP2121 series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection and a chip-enable circuit (5-pin products only). * * * * * The AP2121 series feature high supply voltage ripple rejection, low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices. * * * * * The AP2121 series have 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 2.85V, 3.0V, 3.2V and 3.3V versions. * The AP2121 are available in standard SOT-23-3, SOT23-5 and CSP-4 packages. AP2121 Low Dropout Voltage at IOUT=100mA: 150mV Typical (Except 1.2V, 1.3V and 1.5V Versions) Low Standby Current: 0.1A Typical Low Quiescent Current: 25A Typical High Ripple Rejection: 70dB Typical f=1kHz Output Current: More Than 200mA (300mA Limit) Extremely Low Noise: 30Vrms (10Hz to 100kHz) Excellent Line Regulation: 4mV Typical Excellent Load Regulation: 12mV Typical High Output Voltage Accuracy: 2% Excellent Line Transient Response and Load Transient Response Compatible with Low ESR Ceramic Capacitor (as Low as 1F) Applications * * * * * * SOT-23-3 Mobile Phones, Cordless Phones Wireless Communication Equipment Portable Games Cameras, Video Recorders Sub-board Power Supplies for Telecom Equipment Battery Powered Equipment SOT-23-5 CSP-4 Figure 1. Package Types of AP2121 Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 1 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Pin Configuration N Package (SOT-23-3) K Package (SOT-23-5) VIN 3 1 2 GND VOUT VIN 1 GND 2 CE 3 5 VOUT 4 NC J4/J4A Package (CSP-4 (P 0.5)/CSP-4 (P 0.4)) CE VIN A1 A2 B1 B2 GND VOUT Pin 1 Mark Figure 2. Pin Configuration of AP2121 (Top View) Pin Description Pin Number Pin Name Function SOT-23-3 SOT-23-5 CSP-4 3 1 A2 VIN Input voltage 1 2 B1 GND Ground 3 A1 CE Active high enable input pin. Logic high=enable, logic low=shutdown NC No connection 4 2 5 B2 VOUT Regulated output voltage Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 2 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Functional Block Diagram VIN 3 2 VIN VOUT 1/A2 5/ B2 VOUT 2/B1 GND VREF VREF CURRENT LIMIT CURRENT LIMIT 1 CE GND 3/A1 SOT-23-5/CSP-4 SOT-23-3 Figure 3. Functional Block Diagram of AP2121 Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 3 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Ordering Information AP2121 E1: Lead Free G1: Green Circuit Type TR: Tape and Reel A: Active High (Pull-down resistor built-in) Blank: No Enable Function 1.2: Fixed Output 1.2V 1.3: Fixed Output 1.3V 1.5: Fixed Output 1.5V 1.8: Fixed Output 1.8V 2.5: Fixed Output 2.5V 2.8: Fixed Output 2.8V 2.85: Fixed Output 2.85V 3.0: Fixed Output 3.0V 3.2: Fixed Output 3.2V 3.3: Fixed Output 3.3V Package N: SOT-23-3 K: SOT-23-5 J4: CSP-4(P 0.5) J4A: CSP-4 (P 0.4) Package SOT-23-3 SOT-23-5 Temperature Range oC -40 to 85 -40 to 85oC Condition Part Number Lead Free Marking ID Green Lead Free Green Packing Type AP2121N-1.2TRE1 AP2121N-1.2TRG1 EF9 GF9 Tape & Reel AP2121N-1.3TRE1 AP2121N-1.3TRG1 EG9 GG9 Tape & Reel AP2121N-1.5TRE1 AP2121N-1.5TRG1 EF1 GF1 Tape & Reel AP2121N-1.8TRE1 AP2121N-1.8TRG1 EF3 GF3 Tape & Reel AP2121N-2.5TRE1 AP2121N-2.5TRG1 EF4 GF4 Tape & Reel AP2121N-2.8TRE1 AP2121N-2.8TRG1 EF5 GF5 Tape & Reel AP2121N-3.0TRE1 AP2121N-3.0TRG1 EF6 GF6 Tape & Reel AP2121N-3.2TRE1 AP2121N-3.2TRG1 EF7 GF7 Tape & Reel AP2121N-3.3TRE1 AP2121N-3.3TRG1 EF8 GF8 Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-1.2TRE1 AP2121AK-1.2TRG1 E1T G1T Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-1.3TRE1 AP2121AK-1.3TRG1 E1R G1R Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-1.5TRE1 AP2121AK-1.5TRG1 E1Z G1Z Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-1.8TRE1 AP2121AK-1.8TRG1 E1U G1U Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-2.5TRE1 AP2121AK-2.5TRG1 E1V G1V Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-2.8TRE1 AP2121AK-2.8TRG1 E1W G1W Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-3.0TRE1 AP2121AK-3.0TRG1 E1X G1X Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-3.2TRE1 AP2121AK-3.2TRG1 E3Z G3Z Tape & Reel Active High (Pull-down resistor built-in) AP2121AK-3.3TRE1 AP2121AK-3.3TRG1 E1Y G1Y Tape & Reel Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 4 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Ordering Information (Continued) Package CSP-4 CSP-4 Temperature Range Condition Part Number Lead Free Marking ID Green Lead Free Green Packing Type 0.4 Pitch AP2121AJ4A1.2TRG1 CB Tape & Reel 0.4 Pitch AP2121AJ4A1.3TRG1 CC Tape & Reel 0.4 Pitch AP2121AJ4A1.5TRG1 CD Tape & Reel 0.4 Pitch AP2121AJ4A1.8TRG1 CE Tape & Reel 0.4 Pitch AP2121AJ4A2.5TRG1 CF Tape & Reel 0.4 Pitch AP2121AJ4A2.8TRG1 CG Tape & Reel 0.4 Pitch AP2121AJ4A2.85TRG1 DD Tape & Reel 0.4 Pitch AP2121AJ4A3.0TRG1 CH Tape & Reel 0.4 Pitch AP2121AJ4A3.2TRG1 DA Tape & Reel 0.4 Pitch AP2121AJ4A3.3TRG1 DB Tape & Reel 0.5 Pitch AP2121AJ41.2TRG1 BA Tape & Reel 0.5 Pitch AP2121AJ41.3TRG1 BB Tape & Reel 0.5 Pitch AP2121AJ41.5TRG1 BC Tape & Reel 0.5 Pitch AP2121AJ41.8TRG1 BD Tape & Reel 0.5 Pitch AP2121AJ42.5TRG1 BE Tape & Reel 0.5 Pitch AP2121AJ42.8TRG1 BF Tape & Reel 0.5 Pitch AP2121AJ42.85TRG1 DC Tape & Reel 0.5 Pitch AP2121AJ43.0TRG1 BG Tape & Reel 0.5 Pitch AP2121AJ43.2TRG1 BH Tape & Reel 0.5 Pitch AP2121AJ43.3TRG1 CA Tape & Reel -40 to 85oC -40 to 85oC BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are available in green packages. Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 5 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Input Voltage VIN 6.5 V Enable Input Voltage VCE -0.3 to VIN+0.3 V Output Current IOUT 300 mA TJ 150 oC TSTG -65 to 150 oC TLEAD 260 Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10sec) Thermal Resistance (Junction to Ambient) (Note 2) JA o C SOT-23-3 250 SOT-23-5 250 CSP-4 126 oC/W ESD (Human Body Model) ESD 2000 V ESD (Machine Model) ESD 200 V Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(max), the junction-to-ambient thermal resistance, JA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: PD(max)=(TJ(max) TA)/JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature. Recommended Operating Conditions Parameter Symbol Min Max Unit Input Voltage VIN 2 6 V Operating Ambient Temperature Range TA -40 85 oC Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 6 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics AP2121-1.2 Electrical Characteristics (VIN=2.2V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=2.2V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 1.176 1.2 1.224 V 6 V 200 mA Load Regulation VRLOAD VIN=2.2V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 2.2VVIN6V IOUT=30mA 4 16 mV IOUT=10mA 700 900 IOUT=100mA 700 900 IOUT=150mA 700 900 IOUT=200mA 700 900 VIN=2.2V, IOUT=0mA 25 50 A 1 A Dropout Voltage Quiescent Current VDROP IQ mV Standby Current ISTD VIN=2.2V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=2.2V 70 dB 120 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 7 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-1.3 Electrical Characteristics (VIN=2.3V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=2.3V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 1.274 1.3 1.326 V 6 V 200 mA Load Regulation VRLOAD VIN=2.3V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 2.3VVIN6V IOUT=30mA 4 16 mV Dropout Voltage Quiescent Current VDROP IQ IOUT=10mA 600 800 IOUT=100mA 600 800 IOUT=150mA 600 800 IOUT=200mA 600 800 VIN=2.3V, IOUT=0mA 25 50 A 1 A mV Standby Current ISTD VIN=2.3V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=2.3V 70 dB 130 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 8 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-1.5 Electrical Characteristics (VIN=2.5V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=2.5V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 1.47 1.5 1.53 V 6 V 200 mA Load Regulation VRLOAD VIN=2.5V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 2.3VVIN6V IOUT=30mA 4 16 mV IOUT=10mA 400 600 IOUT=100mA 400 600 IOUT=150mA 400 600 IOUT=200mA 400 600 VIN=2.5V, IOUT=0mA 25 50 A 1 A Dropout Voltage Quiescent Current VDROP IQ mV Standby Current ISTD VIN=2.5V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=2.5V 70 dB 150 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 9 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-1.8 Electrical Characteristics (VIN=2.8V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=2.8V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 1.764 1.8 1.836 V 6 V 200 mA Load Regulation VRLOAD VIN=2.8V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 2.3VVIN6V IOUT=30mA 4 16 mV Dropout Voltage Quiescent Current VDROP IQ IOUT=10mA 20 40 IOUT=100mA 150 300 IOUT=150mA 200 400 IOUT=200mA 250 500 VIN=2.8V, IOUT=0mA 25 50 A 1 A mV Standby Current ISTD VIN=2.8V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=2.8V 70 dB 180 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 10 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-2.5 Electrical Characteristics (VIN=3.5V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=3.5V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 2.45 2.5 2.55 V 6 V 200 mA Load Regulation VRLOAD VIN=3.5V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 3VVIN6V IOUT=30mA 4 16 mV Dropout Voltage Quiescent Current VDROP IQ IOUT=10mA 20 40 IOUT=100mA 150 300 IOUT=150mA 200 400 IOUT=200mA 250 500 VIN=3.5V, IOUT=0mA 25 50 A 1 A mV Standby Current ISTD VIN=3.5V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=3.5V 70 dB 250 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 11 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-2.8 Electrical Characteristics (VIN=3.8V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=3.8V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 2.744 2.8 2.856 V 6 V 200 mA Load Regulation VRLOAD VIN=3.8V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 3.3VVIN6V IOUT=30mA 4 16 mV Dropout Voltage Quiescent Current VDROP IQ IOUT=10mA 20 40 IOUT=100mA 150 300 IOUT=150mA 200 400 IOUT=200mA 250 500 VIN=3.8V, IOUT=0mA 25 50 A 1 A mV Standby Current ISTD VIN=3.8V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=3.8V 70 dB 280 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 12 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-2.85 Electrical Characteristics (VIN=3.85V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=3.85V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 2.793 2.85 2.907 V 6 V 200 mA Load Regulation VRLOAD VIN=3.85V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 3.3VVIN6V IOUT=30mA 4 16 mV Dropout Voltage Quiescent Current VDROP IQ IOUT=10mA 20 40 IOUT=100mA 150 300 IOUT=150mA 200 400 IOUT=200mA 250 500 VIN=3.85V, IOUT=0mA 25 50 A 1 A mV Standby Current ISTD VIN=3.85V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=3.85V 70 dB 280 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance RPD Thermal Resistance (Junction to Case) JC 1.5 2.5 CSP-4 V 5 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M oC/W BCD Semiconductor Manufacturing Limited 13 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-3.0 Electrical Characteristics (VIN=4V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=4V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 2.94 3.0 3.06 V 6 V 200 mA Load Regulation VRLOAD VIN=4V 1mAIOUT80mA 12 40 mV Line Regulation VRLINE 3.5VVIN6V IOUT=30mA 4 16 mV IOUT=10mA 20 40 IOUT=100mA 150 300 IOUT=150mA 200 400 IOUT=200mA 250 500 VIN=4V, IOUT=0mA 25 50 A VIN=4V VCE in OFF mode 0.1 1 A Ripple 0.5Vp-p, f=1kHz VIN=4V 70 dB 300 V/oC 100 ppm/oC Dropout Voltage Quiescent Current VDROP IQ Standby Current ISTD Power Supply Rejection Ratio PSRR Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA mV Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M oC/W BCD Semiconductor Manufacturing Limited 14 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-3.2 Electrical Characteristics (VIN=4.2V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=4.2V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 3.136 3.2 3.264 V 6 V 200 mA Load Regulation VRLOAD VIN=4.2V 1mA IOUT 80mA 12 40 mV Line Regulation VRLINE 3.7VVIN6V IOUT=30mA 4 16 mV Dropout Voltage Quiescent Current VDROP IQ IOUT=10mA 20 40 IOUT=100mA 150 300 IOUT=150mA 200 400 IOUT=200mA 250 500 VIN=4.2V, IOUT=0mA 25 50 A 1 A mV Standby Current ISTD VIN=4.2V VCE in OFF mode 0.1 Power Supply Rejection Ratio PSRR Ripple 0.5Vp-p, f=1kHz VIN=4.2V 70 dB 320 V/oC 100 ppm/oC Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=30mA Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 15 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Electrical Characteristics (Continued) AP2121-3.3 Electrical Characteristics (VIN=4.3V, TJ=25oC, CIN=1F, COUT=1F, Bold typeface applies over -40oCTJ85oC, unless otherwise specified.) Parameter Output Voltage Symbol VOUT Input Voltage VIN Output Current IOUT Conditions VIN=4.3V 1mAIOUT30mA VIN-VOUT=1V Min Typ Max Unit 3.234 3.3 3.366 V 6 V 200 mA Load Regulation VRLOAD VIN=4.3V 1mA IOUT 80mA 12 40 mV Line Regulation VRLINE 3.8VVIN6V IOUT=30mA 4 16 mV Dropout Voltage Quiescent Current VDROP IQ Standby Current ISTD Power Supply Rejection Ratio PSRR Output Voltage Temperature Coefficient VOUT/T (VOUT/VOUT)/T IOUT=10mA 20 40 IOUT=100mA 150 300 IOUT=150mA 200 400 IOUT=200mA 250 500 VIN=4.3V, IOUT=0mA 25 50 A VIN=4.3V VCE in OFF mode 0.1 1 A Ripple 0.5Vp-p, f=1kHz VIN=4.3V 70 dB 330 V/oC 100 ppm/oC IOUT=30mA mV Short Current Limit ILIMIT VOUT=0V 50 mA RMS Output Noise VNOISE TA=25oC 10Hz f100kHz 30 Vrms CE "High" Voltage CE input voltage "High" CE "Low" Voltage CE input voltage "Low" CE Pull-down Resistance Thermal Resistance (Junction to Case) RPD JC 1.5 2.5 V 5 SOT-23-3 74 SOT-23-5 74 CSP-4 5 Sep. 2012 Rev. 2. 5 0.25 V 10 M o C/W BCD Semiconductor Manufacturing Limited 16 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Typical Performance Characteristics 1.8 1.4 1.6 1.2 0.8 Output Voltage (V) Output Voltage (V) 1.4 AP2121-1.2 VIN=2V VIN=2.5V VIN=3V 1.0 0.6 0.4 1.2 1.0 0.8 0.6 AP2121-1.5 VIN= 2V 0.4 0.2 0.2 0.0 0.0 0 0 50 100 150 200 250 300 VIN= 2.5V VIN= 4V 50 100 350 150 200 250 300 350 400 Output Current (mA) Output Current (mA) Figure 5. Output Voltage vs. Output Current Figure 4. Output Voltage vs. Output Current 2.8 2.0 1.8 2.4 1.6 2.0 Output Voltage (V) Output Voltage (V) 1.4 1.2 1.0 0.8 0.6 AP2121-1.8 VIN= 2.2V 0.4 VIN= 2.8V 0.2 0.0 0 VIN= 4V 50 100 150 200 250 300 1.6 1.2 0.8 AP2121-2.5 VIN= 2.8V 0.4 VIN= 3.5V 0.0 0 350 VIN= 5V 50 100 150 200 250 300 350 Output Current (mA) Output Current (mA) Figure 6. Output Voltage vs. Output Current Figure 7. Output Voltage vs. Output Current Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 17 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 3.5 1.4 3.0 1.2 AP2121-3.0 VIN=3.3V 2.5 Output Voltage (V) Output Voltage (V) Typical Performance Characteristics (Continued) VIN=4V 2.0 VIN=6V 1.5 1.0 0.8 0.6 0.4 0.5 0.0 1.0 AP2121-1.2 IOUT=30mA 0.2 0 50 100 150 200 250 300 0.0 350 0 1 2 Output Current (mA) 3.50 0.6 3.25 0.5 3.00 2.75 2.50 2.00 AP2121-3.0 IOUT=30mA 1 2 3 4 5 6 7 0.4 0.3 5 6 Minimum Operating Requirement 0.2 0.1 0.0 0 4 Figure 9. Output Voltage vs. Input Voltage Dropout Voltage (V) Output Voltage (V) Figure 8. Output Voltage vs. Output Current 2.25 3 Input Voltage (V) 7 Input Voltage (V) AP2121-1.2 0 40 80 120 160 200 Output Current (mA) Figure 11. Dropout Voltage vs. Output Current Figure 10. Output Voltage vs. Input Voltage Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 18 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Typical Performance Characteristics (Continued) 1.210 0.6 1.208 1.206 Output Voltage (V) Dropout Voltage (V) 0.5 0.4 0.3 0.2 0.1 1.204 1.202 1.200 1.198 1.196 AP2121-1.2 VIN=2.2V 1.194 AP2121-3.0 IOUT=30mA 1.192 0.0 0 40 80 120 160 1.190 200 -25 0 Output Current (mA) 25 50 75 100 125 o Junction Temperature ( C) Figure 12. Dropout Voltage vs. Output Current Figure 13. Output Voltage vs. Junction Temperature 30 3.10 3.08 25 3.04 Supply Current (A) Output Voltage (V) 3.06 3.02 3.00 2.98 2.96 2.94 AP2121-3.0 VIN=4V 2.92 IOUT=30mA 2.90 -25 0 25 50 75 100 20 15 10 AP2121-1.2 IOUT=0mA 5 0 125 o Junction Temperature ( C) 0 1 2 3 4 5 6 7 Input Voltage (V) Figure 14. Output Voltage vs. Junction Temperature Figure 15. Supply Current vs. Input Voltage Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 19 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Typical Performance Characteristics (Continued) 40 60 35 50 Supply Current (A) Supply Current (A) 30 40 30 20 0 0 1 2 3 4 5 20 15 AP2121-1.2 VIN=2.2V 10 AP2121-3.0 IOUT=0mA 10 25 IOUT=0mA 5 6 0 7 -25 Input Voltage (V) 0 25 50 75 100 125 o Junction Temperature ( C) Figure 16. Supply Current vs. Input Voltage Figure 17. Supply Current vs. Junction Temperature 40 VIN (1V/Div) 35 25 3.2 2.2 20 VOUT (0.05V/Div) Supply Current (A) 30 AP2121-1.2 4.2 15 AP2121-3.0 VIN=4V 10 IOUT=0mA 5 0 -25 0 25 50 75 100 0.05 0 -0.05 125 o Junction Temperature ( C) Time (100s/Div) Figure 18. Supply Current vs. Junction Temperature Sep. 2012 Rev. 2. 5 Figure 19. Line Transient (Conditions: IOUT=30mA, CIN=1F, COUT=1F) BCD Semiconductor Manufacturing Limited 20 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 AP2121-3.0 6 VIN (1V/Div) 5 4 IOUT (100mA/Div) VOUT (0.05V/Div) VOUT (0.1V/Div) Typical Performance Characteristics (Continued) 0.05 0 -0.05 AP2121-1.2 1.3 1.2 1.1 200 100 0 Time (200s/Div) Time (20s/Div) Figure 21. Load Transient (Conditions: VIN=2.2V, CIN=1F, COUT=1F) Figure 20. Line Transient (Conditions: IOUT=30mA, CIN=1F, COUT=1F) 3.1 3.0 2.9 PSRR (dB) IOUT (100mA/Div) VOUT (0.1V/Div) 100 AP2121-3.0 200 90 AP2121-1.2 VIN=2.2V 80 IOUT=30mA 70 CIN=COUT=1F 60 50 40 30 100 20 0 10 0 10 100 1k 10k 100k Frequency (Hz) Time (200s/Div) Figure 22. Load Transient (Conditions: VIN=4V, CIN=1F, COUT=1F) Figure 23. PSRR vs. Frequency Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 21 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Typical Performance Characteristics (Continued) 100 AP2121-3.0 VIN=4V 90 80 IOUT=30mA CIN=COUT=1F PSRR (dB) 70 60 50 40 30 20 10 0 10 100 1k 10k 100k Frequency (Hz) Figure 24. PSRR vs. Frequency Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 22 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Typical Application AP2121-1.2 VIN=2.2V VIN VIN VOUT=1.2V VOUT GND VOUT COUT 1F CIN 1F VIN AP2121-3.0 VIN=4V VIN VOUT=3V VOUT VOUT GND COUT NC CE 1F CIN 1F Note: Filter capacitors are required at the AP2121's input and output. 1F capacitor is required at the input. The minimum output capacitance required for stability should be more than 1F with ESR from 0.01 to 100. Ceramic capacitors are recommended. Figure 25. Typical Application of AP2121 Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 23 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Mechanical Dimensions SOT-23-3 Unit: mm(inch) 2.820(0.111) 3.020(0.119) 1.800(0.071) 2.000(0.079) 0.200(0.008) 0 8 0.300(0.012) 0.500(0.020) 1.450(0.057) MAX. 0.950(0.037) TYP 0.300(0.012) 0.600(0.024) 2.650(0.104) 2.950(0.116) 1.500(0.059) 1.700(0.067) 0.100(0.004) 0.200(0.008) 0.000(0.000) 0.150(0.006) 0.900(0.035) 1.300(0.051) Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 24 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Mechanical Dimensions (Continued) SOT-23-5 Unit: mm(inch) 0.300(0.012) 0.600(0.024) 1.500(0.059) 1.700(0.067) 0.100(0.004) 0.200(0.008) 2.950(0.116) 2.650(0.104) 2.820(0.111) 3.020(0.119) 0.200(0.008) 0.700(0.028) REF 0.300(0.012) 0.400(0.016) 0 8 1.800(0.071) 2.000(0.079) 0.000(0.000) MAX 1.450(0.057) 0.950(0.037) TYP 0.150(0.006) 0.900(0.035) 1.300(0.051) Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 25 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Mechanical Dimensions (Continued) CSP-4 (P 0.4) Unit: mm(inch) 0. 960(0.038) 1. 060(0.042) 0.400(0.016) TYP. 0.400(0.016) TYP. 0.940(0.037) 1.040(0.041) 2 1 B Pin 1 Mark 0. 550(0.022) 0. 650(0.026) A 0.270(0. 011) TYP. 0. 180(0. 007) 0. 220(0. 009) Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 26 Data Sheet HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121 Mechanical Dimensions (Continued) CSP-4 (P 0.5) Unit: mm(inch) 0. 960(0.038) 1. 060(0.042) 0. 500(0.020) TYP. 0.500(0.020) TYP. 0.940(0.037) 1.040(0.041) 2 1 B Pin 1 Mark A 0.320(0. 013) TYP. 0. 600(0. 024) 0. 700(0. 028) 0.215(0. 008) 0.255(0. 010) Sep. 2012 Rev. 2. 5 BCD Semiconductor Manufacturing Limited 27 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE IMPORTANT NOTICE BCD Semiconductor BCD Semiconductor Manufacturing Manufacturing Limited Limited reserves reserves the the right right to to make make changes changes without without further further notice notice to to any any products products or or specifispecifications herein. cations herein. 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