MAX8506 MAXIM [Maxim Integrated Products], MAX8506 Datasheet

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... The supply voltage range is from 2.6V to 5.5V, and the guaranteed output current is 600mA. One megahertz PWM switching allows for small external components. The MAX8506 and MAX8507 are dynamically controlled to provide varying output voltages from 0.4V to 3.4V. The MAX8508 is externally programmed for fixed 0.75V to 3.4V output. Digital logic enables a high-power (HP) bypass mode that connects the output directly to the bat- tery for all versions ...

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... Storage Temperature Range .............................-65°C to +150°C + 0.3V) BATT Lead Temperature (soldering, 10s) .................................+300°C = 1.932V (MAX8506), V REFIN CONDITIONS rising = 1.932V 600mA (MAX8506) OUT = 0.426V 30mA (MAX8506) OUT = 1.700V 600mA (MAX8507) OUT = 0.375V 30mA (MAX8507) OUT < 100µA REF = 1V (MAX8508 ...

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... Logic-Input High Voltage V BATT Logic-Input Low Voltage V BATT Logic Input Current THERMAL SHUTDOWN Thermal-Shutdown Temperature Thermal-Shutdown Hysteresis Note 2: Specifications to -40°C are guaranteed by design, not production tested. _______________________________________________________________________________________ = 1.932V (MAX8506), V REFIN CONDITIONS = 3.1V = 2.6V to 5.5V = 2.6V to 5.5V = 1.70V (MAX8507), REFIN = +25°C.) (Note 2) A MIN TYP MAX 1 ...

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... EFFICIENCY vs. INPUT VOLTAGE 100 3.4V OUT 1.2V OUT 0.4V OUT SKIP = GND R = 10Ω LOAD 50 3.5 2.5 3.0 3.5 4.0 4.5 INPUT VOLTAGE (V) SUPPLY CURRENT vs. SUPPLY VOLTAGE IN PWM MODE 1.2V OUT 0.4V OUT 2000 2.0 2.5 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) MAX8506 toc08 V LX 2V/div V OUT AC-COUPLED 20mV/div 1µs/div 5.0 5.5 5.0 5.5 ...

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... MAX8506 toc13 HP 1V/div 3.4V SKIP = GND V OUT 1V/div V = 1.2V, R OUT MAX8506 toc10 V LX 2V/div V OUT AC-COUPLED 20mV/div 1µs/div MAX8506 toc12 REFIN 1V/div SKIP = GND V OUT 1V/div SKIP = BATT 20µs/div MAX8506 toc14 V IN 200mV/div V OUT AC-COUPLED 20mV/div = 10Ω LOAD 20µs/div ...

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... Compensation. Connect a compensation network from COMP to GND to stabilize the regulator. See the Typical Application Circuits. High-Power Bypass Control Input. Drive low for OUT to regulate to the voltage set by REFIN (MAX8506/MAX8507) or the external resistors on FB (MAX8508). Drive HP high for OUT to be connected to BATT by an internal bypass PFET. No Connection. Connect to PGND. ...

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... Operating in normal mode allows the MAX8506/MAX8507/MAX8508 to pulse skip when the peak inductor current drops below 90mA. During skip operation, the MAX8506/ MAX8507/MAX8508 switch only as needed to service the load, reducing the switching frequency and associat- ed losses in the internal switch and synchronous rectifier. ...

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... This allows regulation with a constant switching frequency and eliminates minimum load requirements for fixed-frequency operation. Shutdown Mode Drive SHDN to GND to place the MAX8506/MAX8507/ MAX8508 in shutdown mode. In shutdown, the refer- ence, control circuitry, internal switching MOSFET, and synchronous rectifier turn off and the output becomes high impedance. Input current falls to 0.1µ ...

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... For optimum performance, place input and output ) should be capacitors as close to the device as possible. Connect SAT GND directly under the IC to the exposed paddle. Refer to the MAX8506 evaluation kit for an example PC board CC layout and routing scheme. SATURATION DIMENSIONS (mm) CURRENT (A) ...

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... PGND GND COMP R C 5.6kΩ 2700pF 100pF SHDN 1 12 OUT 11 BATT GND 2 MAX8506 10 BATTP REF 3 MAX8507 THIN QFN 4mm x 4mm TRANSISTOR COUNT: 2020 PROCESS: BiCMOS OUTPUT 0.75V TO 3. BATT 4.7µF OUT ...

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PWM Step-Down DC-DC Converters with 75m Ω Bypass FET for WCDMA and cdmaOne Handsets (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume ...

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