Analog Microelectronics, Inc. AME8806 / 8809 / 8842 600mA CMOS LDO n General Description n Features The AME8806/8809 family of positive, linear regulators feature low quiescent current (30µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SO-8 package is attractive for "Pocket" and "Hand Held" applications. l These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions. l l l l l l l l In applications requiring a low noise, regulated supply, place a 1000 pF capacitor between Bypass and ground. l l l The AME8806/8809 is stable with an output capacitance of 2.2µF or greater. Very Low Dropout Voltage Guaranteed 600mA Output Accurate to within 1.5% 30µA Quiescent Current Over-Temperature Shutdown Current Limiting Short Circuit Current Fold-back Noise Reduction Bypass Capacitor Power-Saving Shutdown Mode Space-Saving SO-8 Package Factory Pre-set Output Voltages Low Temperature Coefficient n Applications l l n Functional Block Diagram l l IN l OUT l l Overcurrent Shutdown Instrumentation Portable Electronics Wireless Devices Cordless Phones PC Peripherals Battery Powered Widgets Electronic Scales n Typical Application Thermal Shutdown IN IN EN BYP AMP 5V OUT AME8806 AME8809 BYP R1 V ref=1.215V OUT GND EN C1 C2 C3 1µF 1µF 2.2 µF R2 GND 1 Analog Microelectronics, Inc. 600mA CMOS LDO AME8806 / 8809 / 8842 n Pin Configuration SO-8 Top View SO-8 Top View IN OUT EN GND GND GND GND IN GND GND OUT GND EN BYP BP GND AME8809 AME8806 PG GND IN GND OUT GND EN GND AME8842 2 Analog Microelectronics, Inc. AME8806 / 8809 / 8842 600mA CMOS LDO n Ordering Information Part Number AME8806AEHA AME8806BEHA AME8806CEHA AME8806DEHA AME8806EEHA AME8806FEHA AME8806GEHA AME8806HEHA AME8806IEHA AME8806JEHA AME8806KEHA AME8806LEHA AME8806MEHA AME8806NEHA AME8806OEHA Marking 8806 AEHA yyww 8806 BEHA yyww 8806 CEHA yyww 8806 DEHA yyww 8806 EEHA yyww 8806 FEHA yyww 8806 GEHA yyww 8806 HEHA yyww 8806 IEHA yyww 8806 JEHA yyww 8806 KEHA yyww 8806 LEHA yyww 8806 MEHA yyww 8806 NEHA yyww 8806 OEHA yyww Output Package Operating Temp. 3.3V SO-8 -40OC to +85OC 3.0V SO-8 -40OC to +85OC 2.8V SO-8 -40OC to +85OC 2.5V SO-8 -40OC to +85OC 3.8V SO-8 -40OC to +85OC 3.6V SO-8 -40OC to +85OC 3.5V SO-8 -40OC to +85OC 2.7V SO-8 -40OC to +85OC 3.4V SO-8 -40OC to +85OC 2.85V SO-8 -40OC to +85OC 3.7V SO-8 -40OC to +85OC 1.5V SO-8 -40OC to +85OC 1.8V SO-8 -40OC to +85OC 2.9V SO-8 -40OC to +85OC 3.1V SO-8 -40OC to +85OC 3 Analog Microelectronics, Inc. 600mA CMOS LDO AME8806 / 8809 / 8842 n Ordering Information Part Number AME8809AEHA AME8809BEHA AME8809CEHA AME8809DEHA AME8809EEHA AME8809FEHA AME8809GEHA AME8809HEHA AME8809IEHA AME8809JEHA AME8809KEHA AME8809LEHA AME8809MEHA AME8809NEHA AME8809OEHA Marking 8809 AEHA yyww 8809 BEHA yyww 8809 CEHA yyww 8809 DEHA yyww 8809 EEHA yyww 8809 FEHA yyww 8809 GEHA yyww 8809 HEHA yyww 8809 IEHA yyww 8809 JEHA yyww 8809 KEHA yyww 8809 LEHA yyww 8809 MEHA yyww 8809 NEHA yyww 8809 OEHA yyww Output Package Operating Temp. 3.3V SO-8 -40OC to +85OC 3.0V SO-8 -40OC to +85OC 2.8V SO-8 -40OC to +85OC 2.5V SO-8 -40OC to +85OC 3.8V SO-8 -40OC to +85OC 3.6V SO-8 -40OC to +85OC 3.5V SO-8 -40OC to +85OC 2.7V SO-8 -40OC to +85OC 3.4V SO-8 -40OC to +85OC 2.85V SO-8 -40OC to +85OC 3.7V SO-8 -40OC to +85OC 1.5V SO-8 -40OC to +85OC 1.8V SO-8 -40OC to +85OC 2.9V SO-8 -40OC to +85OC 3.1V SO-8 -40OC to +85OC Please consult AME sales office or authorized Rep./Distributor 4 for other output voltage and package type availability. Analog Microelectronics, Inc. AME8806 / 8809 / 8842 600mA CMOS LDO n Ordering Information P art N u m b e r A M E 8842A E HA A M E 8842B E HA A M E 8842CE HA A M E 8842DE HA A M E 8842E E HA A M E 8842F E HA A M E 8842G E HA A M E 8842HE HA A M E 8842IE HA A M E 8842JE HA A M E 8842K E HA A M E 8842LE HA A M E 8842M E HA A M E 8842NE HA A M E 8842O E HA M ark in g 8842 A E HA y y ww 8842 B E HA y y ww 8842 CE HA y y ww 8842 DE HA y y ww 8842 E E HA y y ww 8842 F E HA y y ww 8842 G E HA y y ww 8842 HE HA y y ww 8842 IE HA y y ww 8842 JE HA y y ww 8842 K E HA y y ww 8842 LE HA y y ww 8842 M E HA y y ww 8842 NE HA y y ww 8842 O E HA y y ww O u tp u t P ac k ag e O p e ratin g T em p . 3.3V S O -8 -40 O C to + 85 O C 3.0V S O -8 -40 O C to + 85 O C 2.8V S O -8 -40 O C to + 85 O C 2.5V S O -8 -40 O C to + 85 O C 3.8V S O -8 -40 O C to + 85 O C 3.6V S O -8 -40 O C to + 85 O C 3.5V S O -8 -40 O C to + 85 O C 2.7V S O -8 -40 O C to + 85 O C 3.4V S O -8 -40 O C to + 85 O C 2.85V S O -8 -40 O C to + 85 O C 3.7V S O -8 -40 O C to + 85 O C 1.5V S O -8 -40 O C to + 85 O C 1.8V S O -8 -40 O C to + 85 O C 2.9V S O -8 -40 O C to + 85 O C 3.1V S O -8 -40 O C to + 85 O C P leas e c ons ult A M E s ales offic e or authoriz ed Rep./Dis tributor for other output voltage and pac k age ty pe availability . 5 Analog Microelectronics, Inc. 600mA CMOS LDO AME8806 / 8809 / 8842 n Absolute Maximum Ratings Parameter Maximum Unit 8 V P D / (V IN - V O) A GND - 0.3 to V IN + 0.3 V Input Voltage Output Current Input, Output Voltage ESD Classification B n Recommended Operating Conditions Parameter Ambient Temperature Range Junction Temperature Rating Unit -40 to +85 o C -40 to +125 o C n Thermal Information Para meter Thermal Resistance (θja) Internal Power Dissipation (P D ) (∆ T = 100oC) Max imum 123.7 810 Unit o C/W mW Maximum Junction Temperature 150 o C Maximum Lead Temperature ( 10 Sec) 300 o C Caution: Stress above the listed absolute rating may cause permanent damage to the device 6 Analog Microelectronics, Inc. AME8806 / 8809 / 8842 600mA CMOS LDO n Electrical Specifications TA = 25 o C unless otherwise noted Parameter Symbol Input Voltage VIN Output Voltage Accuracy VO Dropout Voltage VDROPOUT Test Condition Min IO=1mA Typ Max Units Note 1 8 V -1.5 1.5 % 1.5V<VO(NOM)<=2.0V IO=600mA VO=VONOM -2.0% 1400 See chart 2.0V<VO(NOM)<=2.8V 2.8V<VO(NOM)<3.8V 800 mV 600 Output Current IO VO>1.2V 600 Current Limit ILIM VO>1.2V 600 Short Circuit Current ISC VO<0.8V 300 600 mA Quiescent Current IQ IO=0mA 30 50 µA Ground Pin Current IGND IO=1mA to 600mA 30 50 µA 0.15 % 0.02 0.1 % 0.2 1 Line Regulation REGLINE Load Regulation REGLOAD Over Temerature Shutdown IO=5mA VO < 2.0V VIN=VO+1 to VO+2 VO >= 2.0V IO=1mA to 600mA OTS mA 800 150 o OTH 30 VO Temperature Coefficient TC 30 Output Voltage Noise EN Input Threshold EN Input Bias Current Shutdown Supply Current PSRR eN IO=100mA f=1kHz 75 CO=2.2µF ceramic CBYP=0.01µF f=10kHz 55 f=100kHz 30 Co=2.2µF 30 Co=100µF 20 f=10Hz to 100kHz IO=10mA,CBYP=0.01µF % o Over Temerature Hysterisis Power Supply Rejection mA C C ppm/oC dB µVrms VEH VIN=2.7V to 8V 2.0 Vin V VEL VIN=2.7V to 8V 0 0.4 V IEH VEN=VIN, VIN=2.7V to 8V 0.1 µA IEL VEN=0V, VIN =2.7V to 8V 0.5 µA ISD VIN=5V, VO=0V, VEN<VEL 1 µA 0.5 Note1:VIN(min)=VOUT+VDROPOUT 7 Analog Microelectronics, Inc. 600mA CMOS LDO AME8806 / 8809 / 8842 n Detailed Description The AME8806/8809 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, and thermal shutdown. 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 below 120oC. The AME8806/8809 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8806/8809 also incorporates current foldback to reduce power dissipation when the output is short circuited. This feature becomes active when the output drops below 0.8 volts, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 0.8 volts. n External Capacitors The AME8806/8809 is stable with an output capacitor to ground of 2.2µF 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. 8 A third capacitor can be connected between the BYPASS pin and GND. This capacitor can be a low cost Polyester Film variety between the value of 0.001 ~ 0.01µF. A larger capacitor improves the AC ripple rejection, but also makes the output come up slowly. This "Soft" turn-on is desirable in some applications to limit turn-on surges. All capacitors should be placed in close proximity to the pins. A "Quiet" ground termination is desirable. This can be achieved with a "Star" connection. n Enable The Enable pin normally floats high. When actively, pulled low, the PMOS pass transistor shuts off, and all internal circuits are powered down. In this state, the quiescent current is less than 1µA. This pin behaves much like an electronic switch. Analog Microelectronics, Inc. AME8806 / 8809 / 8842 600mA CMOS LDO Load Step ( 1mA-600mA) Ground Current vs. Input Voltage Vo(10mV/DIV) 45 35 85 O C 30 25 Output C L =2.2µF CIN=2.2µF 25 O C 20 IL(200mA/DIV) µA) Ground Current (µ 40 15 10 5 IL o a d 0 0 0 1 2 3 4 5 6 7 8 TIME ( 20mS/DIV) Input Voltage (V) Drop Out Voltage vs. Output Voltage Power Supply Rejection Ratio 0 -10 0.25 IL O A D = 6 0 0 m A -20 0.2 PSRR (dB) Drop Out Voltage (V) 0.3 0.15 0.1 C L =2.2 µF Tantalum C B Y P =0 100mA -30 -40 -50 10mA 100mA -60 0.05 -70 0 2 2.5 3 3.5 4 4.5 5 5.5 -80 1.0E+01 100 µA 1.0E+03 Output Voltage (V) 1mA 100 µA 1.0E+05 1.0E+07 Frequency (Hz) Power Supply Rejection Ratio Safe Operating Area -20 600 100mA C L =2.2µF Tantalum C B Y P =1000pF -40 PSRR (dB) Output Current (mA) -30 100 -50 0.1 1.0 Input-Output Voltage Differential (V) 8.0 100mA -60 -70 10 1mA -80 1.0E+01 10mA 100µA 100µA 1.0E+03 1.0E+05 Frequency (Hz) 1.0E+07 9 Analog Microelectronics, Inc. 600mA CMOS LDO AME8806 / 8809 / 8842 Noise Measurement I OUT (200mA/DIV) Overtemperature Shutdown 0 R L O A D =6.6Ω VOUT (1V/DIV) Vo (1mV/ DIV) CL = 2.2µF NO FILTER 0 TIME (0.5Sec/DIV) TIME (20mS/DIV) I OUT (200mV/DIV) Short Circuit Response C L O A D =2.2µF C I N =1.0µF R L O A D =3.3Ω V O U T N O M =3.3V TIME (2mS/DIV) TIME (2mS/DIV) Line Transient Response 0 10 VIN(1V/DIV) 0 VOUT (10mV/DIV) C L =2µF R L =10Ω Output (1V/DIV) Enable (2V/DIV) Chip Enable Transient Response TIME ( 1mS/DIV) C L O A D =2.2µF C IN = 1µF R L O A D < 1 0 0 mΩ V OUT (1V/DIV) IOUT (200mA/DIV) VOUT (1V/DIV) Current Limit Response C L O A D =2.2µF IL O A D = 1 m A V O U T D C =3.3V V I N D C =4.5V TIME (200mS/DIV) Analog Microelectronics, Inc. AME8806 / 8809 / 8842 600mA CMOS LDO n Package Dimension SO-8 SYMBOLS θ A A1 A2 B C D E e H L y θ MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 INCHES MIN MAX 0.053 0.069 0.004 0.010 — 0.33 0.19 4.80 3.80 — 0.51 0.25 5.00 4.00 — 0.013 0.007 0.189 0.150 — 0.020 0.010 0.1970 0.157 — 5.80 0.40 — 6.20 1.27 0.10 — 0.228 0.016 — 0.244 0.050 0.004 — ° 0 ° 8 ° 0 ° 8 11 www.analogmicro.com E-Mail: [email protected] Life Support Policy: These products of Analog Microelectronics, Inc. are not authorized for use as critical components in lifesupport devices or systems, without the express written approval of the president of Analog Microelectronics, Inc. Analog Microelectronics, 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. Analog Microelectronics, Inc., August 2001 Document: 2006-DS8806/8809-D Corporate Headquarters Asia Pacific Headquarters Analog Microelectronics, Inc. AME, Inc. 3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 2F, 187 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel : (408) 988-2388 Fax: (408) 988-2489 Tel : 886 2 2627-8687 Fax : 886 2 2659-2989