ame5252 AME, Inc., ame5252 Datasheet
ame5252
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ame5252 Summary of contents
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... AME AME5252 n General Description The AME5252 is a dual, constant frequency, synchro- nous step down DC/DC converter. Intended for low power applications, it operates from 2.5V to 5.5V input voltage range and has a constant 1.5MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height. Each output voltage is adjustable from 0 ...
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... Figure 2. 1.8V/1.2V at 600mA Step-Down Regulators V IN 2.8V~5. 2.5V OUT2 CF2 22pF C OUT Figure 3. 2.5V/1.5V at 600mA Step-Down Regulators 2 Dual Synchronous, 600mA, 1.5MHz EN2 IN EN1 SYNC PORB L2 AME5252 2.2 H SW1 SW2 R4 887K VFB2 VFB1 R3 GND/PGND 442K EN2 IN EN1 SYNC PORB L2 AME 5252 2.2 H SW1 SW2 ...
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... AME AME5252 n Typical Application V = 3.3V OUT 2 CF2 22pF C OUT Figure 4. 3.3V/1.8V at 600mA Step-Down Regulators Rev.A.01 Dual Synchronous, 600mA, 1.5MHz V IN 2.8V~5. EN2 IN SYNC L2 AME5252 2.2 H SW2 R4 887K VFB2 R3 196K GND/PGND C Step-Down DC/DC Converter R5 100K EN1 RESET PORB L1 2 1.8V OUT1 SW1 R2 887K CF1 ...
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... AME AME5252 n Function Diagram SYNC 6 0.6V + VFB1 1 - 0.55V - UVDET + + OVDET 0.65V - EN1 2 0.6V VREF EN2 9 10 VFB2 4 Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter CLAMP Slope COMP - SWITCHING LOGIC AND BLANKING CIRCUIT SHOOT-THRU IRCMP PORB OSC COUNTER REGULATOR 2 VIN P_ch ANTI N_ch + SW1 ...
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... Nominal voltage for this pin is 0.6V. Must be Connected to GND. Step-Down DC/DC Converter DFN-10B AME5252-AVBxxx Top View 1. VFB1 2. EN1 SW1 AME5252 5. GND 6. SYNC Die Attach: Conductive Epoxy Pin Description enables regulator 1, while forcing and (-) terminal of C OUT 7 ...
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... AME AME5252 n Ordering Information AME5252 - xxx Pin Configuration & Special Feature A 1. VFB1 2. EN1 (MSOP-10/PP (DFN-10B) 4. SW1 5. GND 6. SYNC 7. SW2 8. PORB 9. EN2 10.VFB2 11.PGND 6 Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter Output Voltage Number of Pins Package Type Pin Configuration & Special Feature ...
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... Options Part Number Marking AME5252-A2BADJ AMyMXX AME5252-AVBADJ BMyMXX Note: 1. The first 2 places represent product code assigned by AME such as AM year code and is the last number of a year. Such as the year code of 2008 bar on top of first letter represents Green Part such as A5252. ...
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... AME AME5252 n Thermal Information Parameter Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Solder Iron (10 Sec)** * Measure on backside center of Exposed Pad MIL-STD-202G 210F 8 Dual Synchronous, 600mA, 1.5MHz ...
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... AME AME5252 n Electrical Specifications V =3.6V Parameter Input Voltage FB Pin Input Current Feedback Trip Point Reference voltage line regulation Output voltage Load regulation Quiescent Current Shutdown Current Switching Frequency Top Switch On-Resistance Bottom switch On-Resistance Switch Current Limit ...
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... An important design consideration is that the R the P-channel switch increases with decreasing input sup- ply voltage (See Typical Performance Characteristics). Therefore, the user should calculate the power dissipa- tion when the AME5252 is used at 100% duty cycle with low input voltage. n Application Information Inductor Selection For most applications, the value of the inductor will fall in the range ...
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... AME AME5252 Inductor Core Selection Once the value for L is known, the type of inductor must be selected. High efficiency converters generally cannot afford the core loss found in low cost powdered iron cores, forcing the use of more expensive ferrite or mollypermalloy cores. Actual core loss is independent of core size for a fixed inductor value but it is very depen- dent on the inductance selected ...
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... In most applications the AME5252 does not dissipate much heat due to its high efficiency. But, in applications where the AME5252 is running at high ambient tempera- ture with low supply voltage and high duty cycles, such as in dropout, the heat dissipated may exceed the maxi- mum junction temperature of the part ...
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... AME AME5252 Start-UP form Shutdown V =3.6V 50 S/Div IN V =1.8V OUT I =800mA OUT Load Step V =3.6V 20 S/Div IN V =1.8V OUT I =50mA to 600mA LOAD Oscillator Frequency vs Temperature 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 -40 -15 +10 +35 +60 o Temperature( C) Rev.A.01 Dual Synchronous, 600mA, 1.5MHz EN 5V /Div V OUT 1V/Div I L 500mA/Div LOAD 100 ...
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... AME AME5252 V vs Temperature FB 0.616 V =3.6V 0.612 IN 0.608 0.604 0.600 0.596 0.592 0.588 0.584 -40 -15 +10 +35 +60 Temperature Temperature DS(ON) 0.70 0. =3.6V 0.60 IN 0.55 V =4.2V IN 0.50 0.45 0.40 0.35 0.30 0.25 0.20 -50 -25 0 +25 +50 Temperature( Efficiency vs Load Current 100 90 V =2. =3. (mA) OUT 14 Dual Synchronous, 600mA, 1.5MHz ...
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... AME AME5252 Efficiency vs Load Current 100 90 V =2. =3. =4. (mA) OUT Current Limit vs V 1.9 1.8 1.7 Channel 1 1.6 1.5 1.4 1.3 1.2 Channel 2 1.1 1.0 0.9 0.8 0.7 2.5 2.8 3.1 3.4 3.7 4.0 4.3 V (V) IN Current Limit vs Temperature 2.10 2.00 1.90 1.80 Channel 1 1.70 1.60 1.50 1.40 1.30 Channel 2 1.20 1.10 1.00 0.90 0.80 0.70 -40 -25 -10 +5 +20 +35 +50 +65 Temperature( Rev.A.01 Dual Synchronous, 600mA, 1.5MHz 1.844 1.834 1.824 1 ...
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... AME AME5252 n Date Code Rule Month Code 1: January 7: July 2: February 8: August 3: March 9: September 4: April A: October 5: May B: November 6: June C: December n Tape and Reel Dimension MSOP-10/PP PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) MSOP-10/PP 12.0±0 Dual Synchronous, 600mA, 1.5MHz ...
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... AME AME5252 n Tape and Reel Dimension DFN-10B (3mmx3mmx0.75mm) PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) DFN-10B (3x3x0.75mm) Rev.A.01 Dual Synchronous, 600mA, 1.5MHz P Pitch (P) 12.0±0.1 mm 4.0±0 Step-Down DC/DC Converter W Part Per Full Reel Reel Size 3000pcs 330± ...
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... AME AME5252 Package Dimension MSOP-10/PP TOP VIEW PIN FRONT VIEW 18 Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter SIDE VIEW θ MILLIMETERS SYMBOLS MIN 0.000 A1 0.750 A2 0.170 b 0.080 C 3.000 BSC D 0.500 BSC e 3.000 BSC E 4.900 BSC E1 0.400 θ ...
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... AME AME5252 n Package Dimension DFN-10B (3mmx3mmx0.75mm) TOP VIEW D A REAR VIEW SYMBOLS Rev.A.01 Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter BOTTOM VIEW MILLIMETERS INCHES C MIN MAX MIN 0.700 0.800 0.028 2.900 3.100 0.114 2.900 3.100 ...
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... 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 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. ...