AME5104

AME5104 AME | Alldatasheet

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AME, Inc. AME5104 150KHz,3A PWM DC/DC Buck Converter Rev.C.02 l 3.3V, 5V, 12V and adjustable l Adjustable version output voltage range: 1.4-36V l +4% max over line and load conditions l 150KHz +15% fixed switching frequency l TTL shutdown capability l Operating voltage can be up to 36V l Output load current: 3A l TO-263-5L package l Low power standby mode l Current-limit protection l High efficiency l Built-in a switching transistor on chip, requires only 4 external components l All AME's Lead Free Products Meet Standards RoHS n General Description n Features n Applications l Simple High-efficiency step-down regulator l Positive to negative converter l On-card switching regulators The AME5104 is a monolithic IC that was designed as a step-down DC/DC Converter and owns the ability of driving a 3A load without additional transistor component.The output versions included 3.3V,5V,12V and an adjustable type.It operates at a switching frequency of 150KHz thus allowing smaller sized filter components otherwise it would need lower frequency switchhing regulators. Other features include a guaranteed + 4% tolerance on output voltage under specified input voltage and output load conditions, and +15% on the oscillator frequency. Regarding protected function, current limit is to protect over current operating of the output switch.

AME, Inc. 150KHz,3A PWM DC/DC Buck ConverterAME5104 Rev.C.02 n Function Block Diagram n Typical Application AME 5104 Fix Output 1N5825 33uH L O A D 220 uF SW Input Unregulated DC Input FB 680 uF GND EN5 AME 5104 Adjustable Output 1N5825 47uH L O A D 220 uF SW 3 5 Input Unregulated DC Input FB 680 uF EN R1R 2 Gnd SW Current Source Bias 1.235V Reference 2.5V Regulator Start Up COMP COMP 200mV 220mV Driver Thermal Limit

150 KHz

OSC. COMP -AMP GND VIN EN FB R1=2.5K COMP Current Limit + + R Switch

AME, Inc. AME5104 150KHz,3A PWM DC/DC Buck Converter Rev.C.02 n Pin Configuration TO-263-5 Top View n Pin Description AME5104ACDV 1. IN 2. SW 3. GND(TAB) 4. FB 5. EN 1 32 4 5 AME 5104 AME5104AJDVxxx Pin Number Pin Name Pin Description 1 IN Analog and Power input. Input Supply Pin. Place bypass capacitor as close to V IN as possible. 2 SW Power Switch input. This is the drain of the internal NMOS power switch. Minimize the metal trace area connected to this pin to minimize EMI. 3 GND Ground. Tie directly to ground plane. 3 FB Output voltage feedback input. Set the output voltage by selecting values for R1 and R2 using: Connect the ground of the feedback network to a GND plane. 5 EN Enable, active low. The enable pin is an active low control. Tie this pin above 2V to turn off the device. Tie this pin below 0.6V to enable the device.  −= 123.121 V VRR out

AME, Inc. 150KHz,3A PWM DC/DC Buck ConverterAME5104 Rev.C.02 Operating Ambient Temperature Range Number of Pins Package Type Pin Configuration Special Feature AME5104 x x x x xxx x Output Voltage n Ordering Information A 1. IN C: 0OC to 70OC D: TO-263 V: 5 330: 3.3V Z: Lead free (TO-263) 2. SW 500: 5V 3. GND 12A: 12V 4. FB ADJ: Adjustable 5. EN Output Voltage Special FeaturePin Configuration Operating Ambient Temperature Range Package Type Number of Pins

AME, Inc. AME5104 150KHz,3A PWM DC/DC Buck Converter Rev.C.02 n Ordering Information Note: ww represents the date code. * A line on top of the first letter represents lead free plating such as A5104 ACDV330 yyww. Please consult AME sales office or authorized Rep./Distributor for the availability of package type. Part Number Marking* Output Voltage Package Operating Ambient Temperature Range AME5104ACDV330Z AME5104 ACDV330 yyww 3.3V TO-263-5 0OC to 70OC AME5104ACDV500Z AME5104 ACDV500 yyww 5V TO-263-5 0OC to 70OC AME5104ACDV12AZ AME5104 ACDV12A yyww 12V TO-263-5 0OC to 70OC AME5104ACDVADJZ AME5104 ACDVADJ yyww ADJ TO-263-5 0OC to 70OC

AME, Inc. 150KHz,3A PWM DC/DC Buck ConverterAME5104 Rev.C.02 n Absolute Maximum Ratings n Recommended Operating Conditions n Thermal Information * Measure θ JC on center of molding compound if IC has no tab. ** MIL-STD-202G-210F Caution: Stree above the listed absolute maximum rating may cause permanent damage to the device. *HBM B: 2000~3999V Parameter Symbol Rating Unit Ambient Temperature Range TA 0 to 70 Junction Temperature Range TJ 0 to 125 Storage Temperature Range TSTG -65 to 150 oC Parameter Package Die Attach Symbol Maximum Unit Thermal Resistance* (Junction to Case) TO-263-5 θ JC 3.5 Thermal Resistance (Junction to Ambient) TO-263-5 θ JA 23 Internal Power Dissipation TO-263-5 PD Internally Limited W 350 oC Conductive Epoxy oC / W Solder Iron (10 Sec)** Parameter Symbol Maximum Unit Supply Voltage VIN 40 V EN Pin Input Voltage VEN -0.3~+25 V Feedback Pin Voltage VFB -0.3~+25 V Output Voltage to Ground Vout -1 V Operating Voltage VOP +4.5~+40 V ESD Classification TBD*

AME, Inc. AME5104 150KHz,3A PWM DC/DC Buck Converter Rev.C.02 n Electrical Specifications Unless otherwise specified, VIN=12V for the 3.3V, 5V, and adjustable version and VIN=24V for the 12V version, ILOAD=500mA Parameter Symbol Min Typ Max Units TJ=25OC 3.168 3.342 TA=0OC to 70OC 3.135 3.465 TJ=25OC 4.800 5.200 TA=0OC to 70OC 4.750 5.250 TJ=25OC 11.52 12.48 TA=0OC to 70OC 11.40 12.60 TJ=25OC 1.290 TA=0OC to 70OC 1.310 TJ=25OC 50 TA=0OC to 70OC 100 TJ=25OC 127 173 TA=0OC to 70OC 110 173 TJ=25OC 1.4 TA=0OC to 70OC 1.5 Max. Duty Cycle (ON) Dmax 100 Min. Duty Cycle (OFF) Dmin 0 TJ=25OC 5.5 TA=0OC to 70OC 6.5 Output Leakage Current IL 50 µA Quiescent Current IQ 5 10 mA Test Condition Efficiency η VOUT=3.3V V IN=12V,ILOAD=3A VOUT=5V VIN=12V,ILOAD=3A VOUT=3.3V 4.75V≤ VIN≤ 36V, 0.2A≤ ILOAD≤ 3A Output Voltage VOUT IOUT=2A(Note2,3) (Note 4) (Note 4) nA KHz V1.3 150 Output=0V (Note 2,4) Adjustable Version Only, VFB=1.3V VOUT=12V VIN=25V,ILOAD=3A VOUT=5V VIN=12V,ILOAD=3A Feedback Trip Point VFB Feedback Bias Current IFB 10 1.193 3.3 VOUT=5V 7V≤ VIN≤ 36V, 0.2A≤ ILOAD≤ 3A 5.0 VOUT=12V 15V≤ VIN≤ 36V, 0.2A≤ ILOAD≤ 3A 12.0 1.23 VOUT programmed for 5V 8V≤ VIN≤ 36V, 0.2A≤ ILOAD≤ 3A (Note 1) Current Limit ICL Peak Current (Note2,3) VSAT Oscillator Frequency FOSC Saturation Voltage (Note 3) V A4.53.6

AME, Inc. 150KHz,3A PWM DC/DC Buck ConverterAME5104 Rev.C.02 n Electrical Specifications Note 1: The switching frequency is reduced when the second stage current limit is activated. Note 2: No diode, inductor or capacitor connected to output pin. Note 3: Feedback pin removed from output and connected to 0V to force the output transistor switch ON. Note 4: Feedback pin removed from output and connected to 12V for the 3.3V, 5V, ADJ. version, and 15V for the 12V version, to force the output transistor switch OFF. Parameter Symbol Min Typ Max Units TJ=25OC 250 TA=0OC to 70OC 300 EN Input Threshold (High) VEH 0.6 EN Input Threshold (Low) VEL 2.0 EN Input Current(High) IEH 5 15 EN Input Current(Low) IEL 0.02 5 µA 1.3 V VEN=0.5V (Regulator ON) VEN=2.5V (Regulator OFF) High (Regulator OFF) Low (Regulator ON) 150 µA Test Condition Shutdown current ISD EN pin=5V V IN=36V

AME, Inc. AME5104 150KHz,3A PWM DC/DC Buck Converter Rev.C.02 Switch vs Saturation Voltage Switch Current Limit IQ vs. Temperature Shutdown Quiescent Current Normalized Output Voltage EN Pin Current(Sinking) VIN=12V 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 0 1 2 3 Switch Current (A) Saturation Voltage(V) VOUT=5V 5.5 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 -40 -25 0 25 75 125 Junction Temperature(℃) Switch Current Limit(A) VIN=12V VOUT=5V 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 -40 -25 0 25 75 125 Temperature(℃) IQ(mA) VIN=12V VFB=12V VOUT=5V 100 120 140 160 180 0 10 20 30 40 50 Supply Voltage(V) Current(uA) VEN=5V VOUT=5V -2.0 -1.5 -1.0 -0.5 0.5 1.0 1.5 2.0 -40 -25 0 25 75 125 155 Junction Temperature (℃) Output Voltage Change(%) VIN=12V ILOAD=200mA VOUT=5V n Characterization Curve 0 5 10 15 20 25 30 EN Pin Voltage(V) Current(uA) VIN=36V VOUT=5V VFB=GND

AME, Inc. 150KHz,3A PWM DC/DC Buck ConverterAME5104 Rev.C.02 VFB vs. Temperature Frequency vs VIN 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 -40 -25 0 25 75 125 Temperature(℃) VFB(V) VIN=12V ILOAD=0.5A VOUT=5V 127 131 135 139 143 147 151 155 159 163 167 171 10 20 30 40 VIN(V) Frequency(KHz) ILOAD=0.5A VOUT=5V n Characterization Curve

AME, Inc. AME5104 150KHz,3A PWM DC/DC Buck Converter Rev.C.02 n Tape and Reel Dimension Carrier Tape, Number of Components Per Reel and Reel Size TO-263-5 W P PIN 1 AMEAME Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size TO-263-5 24.0±0.1 mm 4.0±0.1 mm 800pcs 330±1 mm n Package Dimension TO-263-5 MIN MAX MIN MAX A 10.050 10.668 0.396 0.420 B 8.280 9.169 0.326 0.361 C 4.310 4.670 0.170 0.184 D 0.660 0.910 0.026 0.036 E 1.140 1.400 0.045 0.055 G H 14.600 15.875 0.575 0.625 K 1.143 1.680 0.045 0.066 N 0.330 0.580 0.013 0.023 P 2.280 2.800 0.090 0.110 R 0o 8o 0o 8o A1 7.50 7.70 0.295 0.303 B1 5.80 6.45 0.228 0.254 SYMBOLS MILLIMETERS INCHES 1.70REF 0.067 REF A B R H G K N E D C P Top View Side View Bottom View Front View PIN 1

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. , April 2008 Document: OR2596-DS5104-C.02 Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 www.ame.com.tw E-Mail: sales@ame.com.tw