ame5250 AME, Inc., ame5250 Datasheet

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... Capable of delivering 1A output cur- rent over a wide input voltage range from 2.5V to 5.5V, the AME5250 is ideally suited for single Li-Ion battery powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable sys- tems ...

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... AME AME5250 n Function Block Diagram FB/ VOUT 6 0.6V 0.6V VREF 0.55V UVDET Constant Off-time Slope Mode COMP Select PWM COMP LOGIC NMOS Soft COMP Start IRCOMP OSC Figure 3: Founction Block Diagram 1A, 1.5MHz Synchronous Step-Down Converter VIN GND 5 Rev. A.02 ...

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... Pin Name GND 6 FB/OUT Rev. A.02 AME5250-AVYxxx GND 6. FB/OUT Die Attach: Conductive Epoxy Pin Description No connection. Not internally connected. Can left floating or connected to GND. Enable Control Input, active high. Input Supply Voltage Pin. Bypass this pin with a capacitor as close to the device as possible. ...

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... AME AME5250 n Ordering Information AME5250 - xxx Pin Configuration & Special Feature (DFN-6D GND 6. FB/OUT 4 1A, 1.5MHz Synchronous Step-Down Converter Output Voltage Number of Pins Package Type Pin Configuration & Special Feature Package Number of Type Pins V: DFN Y: 6 Output Voltage 100: 1 ...

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... Part Number Marking* AME5250-AVYADJ AME5250-AVY120 AME5250-AVY180 Note: 1. The first places represent product code assigned by AME such bar on top of first letter represents Green Part such as 5250. 3. The last 3 places MXX represent Marking Code. It contains M as date code in "month" code and that is for AME internal use only ...

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... AME AME5250 n Thermal Information Parameter Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Solder Iron (10Sec)** * Measure on backside center of Exposed Pad MIL-STD-202G 210F 6 Package Die Attach DFN-6D Conductive Epoxy 1A, 1.5MHz Synchronous Step-Down Converter Symbol Maximum 160 JA P 625 ...

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... AME AME5250 n Electrical Specifications V =3.6V, V =2.5V, V =0.6V, L=2 OUT FB Parameter Input voltage Output Voltage Accuracy Adjustable Output Range Feedback Voltage Feedback Pin Bias Current Quiescent Current Shutdown Current Switch Frequency High-side Switch On-Resistance Low-side Switch On-Resistance Switch Current Limit EN High (Enabled the Device) ...

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... P-channel MOSFET and the inductor. n Application Information The basic AME5250 application circuit is shown in Typi- cal Application Circuit. External component selection is determined by the maximum load current and begins with the selection of the inductor value and followed ...

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... In most applications the AME5250 does not dissipate much heat due to its high efficiency. But, in applications where the AME5250 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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... When laying out the printed circuit board, the following checklist should be used to ensure proper operation of the AME5250. These items are also illustrated graphically in Figures 10 and Figures 11 . Check the following in your layout: 1. The power traces, consisting of the GND trace, the SW trace and the V 2 ...

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... AME AME5250 n Application Information External components selection Inductance Supplier ( H) TAIYO YUDEN 2.2 GOTREND 2.2 Sumida 2.2 Sumida 4.7 TAIYO YUDEN 4.7 GOTREND 4.7 Supplier TDK MURATA TAIYO YUDEN TAIYO YUDEN TDK MURATA MURATA TAIYO YUDEN Table 2. Recommended Capacitors for C Rev. A.02 Current Rating DCR (mA 1480 60 1500 58 1500 ...

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... AME AME5250 n Characterization Curve(For reference only) Efficiency vs. Output Current 100 2. 2.2 H OUT OUT 40 0 Output Current(mA) Efficiency vs. Output Current 100 1. 2.2 H OUT OUT 40 0 Output Current(mA) Reference Voltage vs. Temperature 0.620 0.615 0.610 0.605 ...

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... AME AME5250 n Characterization Curve(For reference only) Frequency vs. Supply Voltage 1.70 1.65 1.60 1.55 1.50 1.45 1.40 1.35 1.30 1.25 1.20 1.15 1.10 2.5 3.0 3.5 4.0 V (V) IN Light Load Mode output voltage ripple div 1.8V OUT I = 50mA OUT 5V/div 100mV/div OUT 200mA/div L Rev. A.02 1.90 1.89 1.88 1.87 1.86 1.85 1.84 1.83 1.82 1.81 1.80 1.79 1.78 1.77 4.5 5.0 5.5 1A, 1.5MHz Synchronous Step-Down Converter Output Voltage vs. Output Current V 100 200 ...

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... AME AME5250 n Characterization Curve(For reference only) Load Step div 1.8V OUT I = 0A~1A~0A OUT 100mV/div OUT 500mA/div OUT Load Step div 1.8V OUT I = 100mA~1A~100mA OUT 100mV/div OUT 500mA/div OUT 14 1A, 1.5MHz Synchronous Step-Down Converter ...

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... AME AME5250 n Characterization Curve(For reference only) Current Limit vs. Temperature 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 -40 -25 -10 +5 +20 +35 +50 +65 +80 +95 +110 +125 Temperature ( Current Limit vs. Temperature 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 -40 -25 -10 +5 +20 +35 +50 +65 +80 +95 +110 +125 Temperature ( Rev 1.2V OUT 5. 1.2V OUT o C) 1A, 1.5MHz Synchronous Step-Down Converter Current Limit vs. Temperature 3 ...

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... AME AME5250 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 DFN-6D (2mmx2mmx0.75mm) PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) DFN-6D (2x2x0.75mm ...

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... AME AME5250 n Package Dimension DFN-6D (2mmx2mmx0.75mm) D TOP VIEW A REAR VIEW Rev. A. BOTTOM VIEW G1 G SYMBOLS 1A, 1.5MHz Synchronous Step-Down Converter L PIN 1 IDENTIFICATION MILLIMETERS INCHES MIN MAX MIN 0.700 0.800 0.028 1.900 2.100 0.075 1.900 2.100 ...

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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. ...