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Part: MAX606
Category:
Power Management
-> DC-DC Converters
Description: Low-Profile, 5V/12V or Adjustable, Step-up DC-DC Converter For Flash Memory Pcmcia Cards
Company: Maxim Integrated Products
Datasheet: Download MAX606 datasheet File size : 443 kB
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Datasheet text preview:
19-0459; Rev 1; 1/99
Low-Profile, 5V/12V or Adjustable, Step-Up DC-DC Converters for Flash Memory/PCMCIA Cards
General Description
The MAX606/MAX607 are the smallest CMOS, step-up DC-DC converters available for flash memory and PC (PCMCIA) cards. They switch at up to 1MHz, permitting t h e entire circuit to fit in 0.25in 2 , yet remain under 1.35mm high to fit Type 1, 2, and 3 card standards. These devices operate from a 3V to 5.5V input and provide a ±4% accurate output that is preset to 5V or 12V, or adjustable from VIN to 12.5V. They can provide up to 180mA of output current at 5V. The MAX606 switches at up to 1MHz and fits Type 1 (thinnest standard) flash memory and PCMCIA cards. It u s e s a thin, 1.19mm high, 5µH inductor and small, 0 . 6 8 µ F output capacitors. The entire circuit fits in 0.25in2 and is less than 1.35mm high. The MAX607 switches at up to 500kHz, fitting Type 2 a n d 3 cards, as well as hand-held devices where h e i g h t requirements are not as critical. It uses less b o a r d area than the MAX606, fitting in 0.16in 2, but requires 2.5mm of height. It also has a lower no-load supply current than the MAX606. Both devices use a unique control scheme that optimizes efficiency over all input and output voltages. Other features include 1µA logic-controlled shutdown and usercontrolled soft-start to minimize inrush currents. T h e MAX606/MAX607 come in 8-pin µMAX and SO p a c k a g e s . The µMAX package uses half the board area of a standard 8-pin SO and has a maximum height of just 1.11mm.
UAL IT MAN TION K SHEET VALUA E TA WS DA FOLLO
____________________________Features
o Lowest-Height Circuit (1.35mm max) o ±4% Regulated Output (5V, 12V, or Adjustable) o Up to 180mA Load Current o 1MHz Switching Frequency (MAX606) o 1µA Logic-Controlled Shutdown o 3V to 5.5V Input Voltage Range o Compact 8-Pin µMAX Package
MAX606/MAX607
Ordering Information
PART MAX606ESA MAX606EUA MAX607ESA MAX607EUA TEMP. RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 8 SO 8 µMAX 8 SO 8 µMAX
________________________Applications
PCMCIA Cards Memory Cards Single PCMCIA Slot Programming Digital Cameras Flash Memory Programming Hand-Held Equipment
INPUT +4.5V TO +5.5V
Typical Operating Circuit
Pin Configuration
TOP VIEW
PGND FB SHDN IN 1 2 3 4 8 LX OUT SS GND
0.68µF
0.68µF
0.1µF
5µH IN OUTPUT 12V @ 90mA 0.68µF x2
ON/OFF
SHDN
LX
FB MAX606 OUT GND
MAX606 MAX607
SO/µMAX
7 6 5
PGND
________________________________________________________________ Maxim Integrated Products
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For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.
Low-Profile, 5V/12V or Adjustable, Step-Up DC-DC Converters for Flash Memory/PCMCIA Cards MAX606/MAX607
ABSOLUTE MAXIMUM RATINGS
IN to GND ........-0.3V to +6V LX, OUT to GND .....-0.3V to +15V PGND to GND............±0.3V FB to GND ........-0.3V to (VCC + 0.3V) SS, SHDN to GND ....-0.3V to +6V Continuous Power Dissipation (TA = +70°C) µMAX (derate 4.10mW/°C above +70°C) ...........330mW SO (derate 5.88mW/°C above +70°C) .......471mW Operating Temperature Range ...-40°C to +85°C Storage Temperature .......+160°C Lead Temperature (soldering, 10sec) .....+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = 3.3V, GND = PGND = FB = 0V, SHDN = IN, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER Supply Voltage Undervoltage Lockout Threshold Output Voltage (Note 1) FB Regulation Setpoint Adjustable Output Voltage Range Line Regulation Switch On-Resistance Switch Off-Leakage Switch Current Limit SS Resistance Quiescent Supply Current Shutdown Quiescent Current OUT Input Current Switch On-Time Constant (K) Switch Off-Time Ratio SHDN Input Low Voltage SHDN Input High Voltage SHDN Input Current FB Input Low Voltage FB Input High Voltage FB Input Current V SHDN = VIN, VSS = 150mV V SHDN = VSS = 0 VOUT = 13V V SHDN = 0, OUT = IN VOUT = 13V 3V < VIN < 5.5V (tON = K / VIN) MAX606 MAX607 1.9 3.8 0.3 3.0 6.0 MAX606 MAX607 250 150 0.01 VLX = 12V 0.7 30 45 3V < VIN < 5V, FB = IN, ILOAD = 0 to 180mA 4.5V < VIN < 5.5V, FB = GND, ILOAD = 0 to 120mA 0.1V < VFB < (VIN - 0.1V) 0.1V < VFB < (VIN - 0.1V) VIN = 3V to 5.5V 4.8 11.5 1.96 VIN 0.5 0.4 1 10 1.1 60 0.5 500 300 10 80 4.3 8.6 0.7 0.25VIN 0.66VIN ±1 0.1 VIN - 0.1 200 V V µA V V nA CONDITIONS MIN 3.0 2.4 5.0 12.0 2.00 TYP MAX 5.5 2.8 5.2 12.5 2.04 12.5 UNITS V V V V V % µA A k µA µA µA µs-A
2V < (VOUT + 0.5V - VIN) < 8V (see PulseFrequency-Modulation Control Scheme section) VIN = 3V VIN = 5.5V V SHDN = 0 or VIN VIN = 3V to 5.5V. For VFB below this voltage, output regulates to 12V. VIN = 3V to 5.5V. For VFB above this voltage, output regulates to 5V. VFB = 2.05V, VOUT = 13V
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Low-Profile, 5V/12V or Adjustable, Step-Up DC-DC Converters for Flash Memory/PCMCIA Cards
ELECTRICAL CHARACTERISTICS
(VIN = 3.3V, GND = PGND = FB = 0V, SHDN = IN, TA = -40°C to +85°C, unless otherwise noted.) (Note 2) PARAMETER Supply Voltage Undervoltage Lockout Threshold Output Voltage (Note 1) FB Regulation Setpoint Adjustable Output Voltage Range Switch On-Resistance Switch Off-Leakage Switch Current Limit SS Resistance Quiescent Supply Current Shutdown Quiescent Current OUT Input Current Switch On-Time Constant (K) Switch Off-Time Ratio SHDN Input Low Voltage SHDN Input High Voltage SHDN Input Current FB Input Low Voltage FB Input High Voltage FB Input Current V S H D N = VIN, VSS = 150mV V S H D N = VSS = 0 VOUT = 13V V S H D N = 0, OUT = IN VOUT = 13V 3V < VIN < 5.5V (tON = K / VIN) MAX606 MAX607 1.8 3.5 0.3 MAX606 MAX607 VLX = 12V 0.55 30 3V < VIN < 5V, FB = IN, ILOAD = 0 to 135mA 4.5V < VIN < 5.5V, FB = GND, ILOAD = 0 to 90mA 0.1V < VFB < (VIN - 0.1V) 0.1V < VFB < (VIN - 0.1V) 4.75 11.4 1.94 VIN CONDITIONS MIN 3.0 2.4 TYP MAX 5.5 2.8 5.25 12.6 2.06 12.5 1 10 1.25 60 0.5 500 300 10 85 4.5 9.0 0.7 0.25VIN 0.66VIN ±1 0.1 VIN - 0.1 200 V V µA V V nA UNITS V V V V V µA A k µA µA µA µs-V
MAX606/MAX607
2V < (VOUT + 0.5V - VIN) < 8V (see PulseFrequency-Modulation Control Scheme section) VIN = 3V VIN = 5.5V V S H D N = 0 or VIN VIN = 3V to 5.5V. For VFB below this voltage, output regulates to 12V. VIN = 3V to 5.5V. For VFB above this voltage, output regulates to 5V. VFB = 2.05V, VOUT = 13V
Note 1: The load specification is guaranteed by DC parametric tests and is not production tested in circuit. Note 2: Specifications to -40°C are guaranteed by design, not production tested.
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