AME AME8855A n General Description The AME8855A family of positive, CMOS linear regulators provide low dropout voltage(420mV@600mA), low quiescent current, and low noise CMOS LDO. These rugged devices have both Thermal Shutdown, and Current limit to prevent device failure under the "Worst" of operating conditions. High PSRR, Low Noise, 600mA CMOS Regulator n Typical Application IN OUT IN OUT AME8855 A EN GND CIN 1µF COUT 1µF n Features l l l l l l l l l l l Low Dropout Voltage: 420mV@600mA Guaranteed Current: 600mA Quiescent Current: 60µA (typ.) Over-Temperature Shutdown Current Limiting protection PSRR: 60dB@10KHz Ultra-Low-Noise: 100µVRMS at 1Hz to 100KHz Low Temperature Coefficient Input Voltage Range 2.8V~5.5V Output Voltage Range: 0.8V ~ 4.3V Green Products Meet RoHS Standards n Functional Block Diagram IN OUT Overcurrent Shutdown Thermal Shutdown R1 EN AMP + n Applications l l l l l l Rev. C.02 Instrumentation Portable Electronics Wireless Devices Cordless Phones PC Peripherals Battery Powered Widgets Vref R2 GND 1 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Pin Configuration SOT-25 Top View 5 4 AME8855 A 1 2 3 SOP-8 Top View AME8855A-AEVxxx 1. IN 2. GND 3. EN 4. NC 5. OUT 8 * Die Attach: Conductive Epoxy 7 6 5 AME8855 A 1 2 3 4 AME8855A-AHAxxx 1. IN 2. GND 3. GND 4. OUT 5. NC 6. GND 7. GND 8. EN * Die Attach: Conductive Epoxy n Pin Description Pin Number 2 Pin Name Pin Description SOT-25 SOP-8 1 1 IN 2 2,3,6,7 GND 3 8 EN Enable pin, Active “high". When pulled “low”, the PMOS pass transistor turns off, current consuming less than 1 A. When EN pin floating outside, it’s weakly pulled low by internal small current source . 4 5 NC No connection. 5 4 OUT Input voltage pin; should be decoupled with 1 F or greater capacitor. Ground connection pin. LDO voltage regulator output pin; should be decoupled with a 1.0 F or greater value low ESR ceramic capacitor. Rev. C.02 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Ordering Information AME8855A - x x x xxx Output Voltage Number of Pins Package Type Pin Configuration Pin Configuration A (SOT-25) A (SOP-8) Rev. C.02 1. 2. 3. 4. 5. IN GND EN NC OUT 1. 2. 3. 4. 5. 6. 7. 8. IN GND GND OUT NC GND GND EN Package Type E: SOT-2X H: SOP Number of Pins A: 8 V: 5 Output Voltage 080: 090: 100: 110: 120: 130: 140: 150: : : 420: 430: 0.8V 0.9V 1.0V 1.1V 1.2V 1.3V 1.4V 1.5V : : 4.2V 4.3V 3 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Absolute Maximum Ratings Parameter Maximum Unit Input Voltage -0.3 to 6 V EN Voltage -0.3 to 6 V Output Current PD /(VIN -VOUT) mA Output Voltage GND-0.3 to VIN +0.3 V HBM 2 kV MM 200 V ESD Classification Caution: Stress above the listed in absolute maximum ratings may cause permanent damage to the device. n Recommended Operating Conditions Parameter Symbol Rating Ambient Temperature Range TA -40 to +85 Junction Temperature Range TJ -40 to +125 Storage Temperature Range T STG -65 to +150 Unit o C n Thermal Information Parameter Package Thermal Resistance* (Junction to Case) SOT-25 Thermal Resistance (Junction to Ambient) SOT-25 Internal Power Dissipation SOP-8 SOP-8 SOT-25 SOP-8 Die Attach Symbol Conductive Epoxy θJC Conductive Epoxy θJA Conductive Epoxy PD Maximum 81 60 260 150 400 810 Unit o C/W o C/W mW Maximum Juction Temperature 150 o C Lead Temperature (Soldering, 10Sec. )** 260 o C * Measure θJC on backside center of molding compound if IC has no tab. ** MIL-STD-202G 210F 4 Rev. C.02 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Electrical Specifications VIN=VOUT(NOM) +1V, (for VOUT<2V, VIN=2.8V), IOUT=1mA, and COUT=1µF, CIN=1µF unless otherwise noted. Typical values are at TA=25oC. Parameter Input Voltage Output Accuracy Output Voltage Range Dropout Voltage (Note 1) Output Current Quiescent Current Symbol VIN VOUT,ACC VDROP Rev. C.02 Min Max Units 2.8 5.5 V -2.0 2.0 % 0.8 4.3 V Note2 IOUT=600mA, 2.0V<VOUT(NOM)2.8V 850 IOUT IQ REGLINE REGLOAD Typ IOUT=600mA, 0.8VVOUT(NOM)2.0V IOUT=600mA, 2.8V<VOUT(NOM) Load Regulation ∆VOUT × 100% VOUT ∆I OUT IOUT=1mA VOUT Line Regulation ∆VOUT × 100% ∆V IN VOUT Test Condition 420 mV 650 600 mA IOUT=0mA 60 90 IOUT=1mA, 0.8VVOUT1.2V, 2.8VVIN3.5V 0.125 0.25 IOUT=1mA, 1.2V<VOUT2.0V, 2.8VVIN3.5V 0.1 0.2 IOUT=1mA, 2.0V<VOUT4.2V, VIN(MIN)VINVIN(MIN)+1V 0.05 0.1 IOUT=1mA, 4.2V<VOUT4.5V, VIN(MIN)VIN5.5V 0.05 0.25 1mAIOUT600mA 0.8VVOUT(NOM)1.2V 1.5 3 1mAIOUT600mA 1.2VVOUT(NOM)2.0V 1.25 2.5 1mAIOUT600mA 2.0V<VOUT(NOM) 1.0 2.0 µA %/V %/A 5 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Electrical Specifications (Contd.) Parameter Power Supply Rejection Ration Symbol PSRR Test Condition COUT=1uF, VOUT=0.8V IOUT=10mA VIN=2.8V Min Typ F=100Hz 60 F=1KHz 60 F=10KHz 60 Max dB Output Voltage Noise eN IOUT=10mA, VOUT=0.8V, f=1Hz to 100KHz Enable High (Enabled) VEN,HI VIN(MIN)VIN5.5V 1.4 VIN Enable Low (Shutdown) VEN,LO VIN(MIN)VIN5.5V 0 0.4 IEN,HI VEN=VIN 8 IEN,LO VEN=0V 1 ISHDN VIN=5.0V, VEN=0V VOUT,SD IOUT=0.4mA, VEN=0 Output Current Limit ILIM VOUT=0.9 x VOUT(NOM) Short-Circuit Current ISC VOUT0.6V 300 Thermal Shutdown Temperature TSHDN Shutdown, temperature increasing 150 Thermal Shutdown Hysteresis TSHDN(HYS) Enable Input Bias Current Shutdown Current Shutdown Output Voltage µVRMS 100 0.1 Units V µA 1 µA 0.4 V Protection 750 mA o C 20 Note1: Dropout Voltage is measured at VOUT=VOUT(NOM)x98% Note2:For VOUT below 2.0V, Dropout Voltage is the Input(MIN) Voltage to Output Voltage differential. 6 Rev. C.02 AME AME8855A High PSRR, Low Noise, 600mA CMOS Regulator n Detailed Description Capacitor Selection and Regulator Stability The AME8855 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection thermal shutdown, and Power Good detection circuitry. The P-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds 150oC, or the current exceeds 600mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops more 20oC. The maximum output power of the AME8855 is limited by the maximum power dissipation of the package. By calculation the power dissipation of the package as a function of the input voltage, output voltage and output current, the maximum input voltage can be obtained. The maximum power dissipation should not exceed the package’ s maximum power rating. PMAX = (VIN(MAX)-VOUT) x IOUT Where: VIN(MAX) = maximum input voltage PMAX = maximum power dissipation of the package Capacitor Selection and Regulator Stability The AME8855 is stable with an output capacitor to ground of 1µF or greater. Ceramic capacitors have the lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1µF ceramic capacitor with a 10µF Aluminum Electrolytic. The benefit is low ESR, high capacitance, and low overall cost. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be at least 0.1µF to have a beneficial effect. Enable Pin The Enable Pin is Active high. When activated pulled low, the MOS pass transistor shuts off, and all internal circuits are powered down. In this state, the stand by current is less than 1µA. When EN pin float outside, It's pulled Low. Rev. C.02 7 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Characterization Curve Output Voltage 1.05 1.04 1.04 1.03 1.03 Output Voltage (V) Output Voltage (V) Output Voltage 1.05 1.02 1.01 1.00 0.99 VIN = 2.8V VOUT = 1V IOUT = 1mA 0.98 0.97 0.96 0.95 -40 1.02 1.01 1.00 0.99 0.98 VIN = 2.8V VOUT = 1V IOUT = 600mA 0.97 0.96 -25 -10 -5 20 35 50 65 80 95 110 0.95 -40 125 Temperature (oC) -25 -10 -50 4.45 4.40 4.40 4.35 4.30 VIN = 5.5V VOUT = 4.3V IOUT = 1mA 4.25 4.20 4.15 -40 -25 -10 5 20 35 50 65 80 95 110 4.15 -40 125 95 110 125 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (oC) Quiescent Current 100 100 90 90 Quiescent Current (µA) Quiescent Current (µA) 80 VIN = 5.5V VOUT = 4.3V IOUT = 600mA 4.25 4.20 80 70 60 50 40 30 VOUT = 1V 10 80 70 60 50 40 30 20 VOUT = 4.3V 10 -20 -10 5 20 35 50 65 Temperature (oC) 8 65 4.30 Quiescent Current 0 -40 50 4.35 Temperature (oC) 20 35 Output Voltage 4.45 Output Voltage (V) Output Voltage (V) Output Voltage 20 Temperature (oC) 80 95 110 125 0 -40 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (oC) Rev. C.02 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Characterization Curve (Contd.) Current Limit vs Input Voltage 1600 1600 1400 1400 Current Limit (mA) Current Limit (mA) Current Limit vs Input Voltage 1200 1000 800 1200 1000 800 VOUT = 1V 600 2.8 3.8 5. 5 4.8 5. 5 Dropout Voltage Stability vs. ESR vs. Load Current 500 400 300 200 VOUT = 1V Region of Stable COUT ESR(Ω) 10.00 100 Unstable Range 1.00 0.10 Stable Range 0.01 0.005 VIN = 5V CIN = COUT= 1µF / X7R 0.00 -25 -10 5 20 35 50 65 Temperature (oC) 80 95 110 125 0 50 100 Unstable Range 150 200 Short Circuit Current Protection Short Circit Current Protection Short Circuit Current (mA) 600 500 400 300 700 600 500 400 300 VOUT = 4.3V VOUT = 1V 200 2.8 3.8 Input Voltage (V) Rev. C.02 300 800 700 200 250 Load Current (mA) 800 Short Circuit Current (mA) 5. 4 Input Voltage (V) 600 Dropout Voltage (mV) 5.3 Input Voltage (V) 700 0 -40 V OUT = 4.3V 600 4.8 5.5 5.5 5.3 Input Voltage (V) 9 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Characterization Curve (Contd.) Line Transient Response Line Transient Response TA=-40oC, VOUT =1V, IOUT =10mA T A=-40oC, VOUT=4.3V, IOUT=10mA V IN (1V/Div) V IN (1V/Div) VOUT (20mV/Div) VOUT (20mV/Div) 20µS/Div 20µS/Div Line Transient Response Line Transient Response TA=-40oC, VOUT =1V, IOUT =600mA TA=-40oC, VOUT =4.3V, IOUT =600mA V IN (1V/Div) VIN (1V/Div) VOUT (20mV/Div) VOUT (20mV/Div) 20µS/Div 20µS/Div Line Transient Response Line Transient Response TA=25oC, VOUT =4.3V, IOUT =10mA o TA =25 C, VOUT=1V, IOUT =10mA V IN (1V/Div) VIN (1V/Div) VOUT (20mV/Div) VOUT (10mV/Div) 20µS/Div 10 20µS/Div Rev. C.02 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Characterization Curve (Contd.) Line Transient Response Line Transient Response TA =25oC, VOUT=1V, IOUT =600mA T A=25oC, VOUT =4.3V, IOUT =600mA V IN (1V/Div) V IN (1V/Div) VOUT (20mV/Div) VOUT (10mV/Div) 20µS/Div 20µS/Div Line Transient Response Line Transient Response TA =125oC, V OUT=1V, IOUT =10mA T A=125oC, VOUT =4.3V, IOUT=10mA V IN (1V/Div) V IN (1V/Div) VOUT (20mV/Div) VOUT (10mV/Div) 20µS/Div 20µS/Div Line Transient Response Line Transient Response TA =125oC, VOUT=1V, IOUT =600mA TA =125oC, V OUT=4.3V, IOUT =600mA V IN (1V/Div) V IN (1V/Div) VOUT (50mV/Div) VOUT (10mV/Div) 20µS/Div Rev. C.02 20µS/Div 11 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Characterization Curve (Contd.) Load Transient Response Load Transient Response TA=-40oC, VOUT=4.3V, IOUT=10~600mA TA=-40oC, VOUT=1V, IOUT=10~600mA VOUT (20mV/Div) VOUT (20mV/Div) IOUT (200mA/Div) IOUT (200mA/Div) Time (20µSec/Div) Time (20µSec/Div) Load Transient Response Load Transient Response TA=25oC, VOUT=4.3V, IOUT=10~600mA TA=25oC, VOUT=1V, IOUT=10~600mA VOUT (20mV/Div) VOUT (20mV/Div) IOUT (200mA/Div) IOUT (200mA/Div) Time (20µSec/Div) Time (20µSec/Div) Load Transient Response Load Transient Response TA=125oC, VOUT=1V, IOUT=10~600mA VOUT (20mV/Div) VOUT (20mV/Div) IOUT (200mA/Div) IOUT (200mA/Div) Time (20µSec/Div) 12 TA=125oC, VOUT=4.3V, IOUT=10~600mA Time (20µSec/Div) Rev. C.02 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Characterization Curve (Contd.) Chip Enable Transient Response VEN (1V/Div) VEN (2V/Div) V OUT=1V IOUT=0mA VOUT (500mV/Div) VOUT=4.3V IOUT=0mA VOUT (2V/Div) 10µS/Div 40µS/Div Chip Enable Transient Response Chip Enable Transient Response VEN (1V/Div) VEN (2V/Div) VOUT=1V IOUT=600mA VOUT (500mV/Div) 10µS/Div Rev. C.02 Chip Enable Transient Response VOUT=4.3V IOUT=600mA VOUT (2V/Div) 40µS/Div 13 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Characterization Curve (Contd.) Shut Down Curve Output Voltage VEN (1V/Div) Shut Down Curve Output Voltage VEN (2V/Div) V OUT (500mV/Div) VOUT (2V/Div) V OUT=1V IOUT=0mA VOUT=4.3V IOUT=0mA 40µS/Div 40µS/Div Shut Down Curve Output Voltage Shut Down Curve Output Voltage VEN (1V/Div) VEN (2V/Div) V OUT (500mV/Div) VOUT=1V IOUT=600mA 4µS/Div VOUT (2V/Div) VOUT=4.3V IOUT=600mA 20µS/Div PSRR vs Frequency 100 90 80 PSRR (dB) 70 60 50 40 30 20 10 0 100 1K 10K 100K 1M Frequency (Hz) 14 Rev. C.02 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Tape and Reel Dimension SOP-8 P0 PIN 1 W AME AME P Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Pitch (P0) Part Per Full Reel Reel Size SOP-8 12.0±0.1 mm 8.0±0.1 mm 4.0±0.1 mm 2500pcs 330±1 mm SOT-25 P0 W AME AME PIN 1 P Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Pitch (P0) Part Per Full Reel Reel Size SOT-25 8.0±0.1 mm 4.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm Rev. C.02 15 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Package Dimension SOP-8 Top View Side View C E H L PIN 1 D Front View o e A A1 A2 7 (4X) B SOT-25 16 Rev. C.02 AME High PSRR, Low Noise, 600mA CMOS Regulator AME8855A n Lead Pattern (Contd.) SOT-25 2.40 BSC 1.00 BSC 0.70 BSC 0.95 BSC Note: 1. Lead pattern unit description: BSC: Basic. Represents theoretical exact dimension or dimension target. 2. Dimensions in Millimeters. 3. General tolerance ± 0.05mm unless otherwise specified. 0.95 BSC 1.90 BSC Rev. C.02 17 www.ame.com.tw E-Mail: [email protected] Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. AME, Inc. , August 2014 Document: TM001-DS8855A-C.02 Corporate Headquarter AME, Inc. 8F, 12, WenHu St., Nei Hu Taipei, Taiwan. 114 Tel: 886 2 2627-8687 Fax: 886 2 2659-2989