MAX1759EUB-T Maxim Integrated Products, MAX1759EUB-T Datasheet
MAX1759EUB-T
Specifications of MAX1759EUB-T
Available stocks
Related parts for MAX1759EUB-T
MAX1759EUB-T Summary of contents
Page 1
... Maxim’s unique o 1µA Shutdown Mode o Load Disconnected from Input in Shutdown o High 1.5MHz Operating Frequency o Uses Small Ceramic Capacitors o Short-Circuit Protection and Thermal Shutdown o Small 10-Pin µMAX Package Applications PART MAX1759EUB TOP VIEW OUT 3.3V AT 100mA C OUT POWER OK Features Ordering Information TEMP ...
Page 2
Buck/Boost Regulating Charge Pump in µMAX ABSOLUTE MAXIMUM RATINGS IN, OUT, FB, POK, SHDN to GND............................-0.3V to +6V PGND to GND.....................................................................±0.3V CXN to GND ................................................-0. CXP to GND................-0.3V to (the greater of V OUT Short to GND .........................................................Indefinite ...
Page 3
ELECTRICAL CHARACTERISTICS (Circuit of Figure 2V PGND = GND, C SHDN IN erwise noted.) (Note 1) PARAMETER SYMBOL Input Voltage Range Input Undervoltage Lockout V UVLO Voltage Output Voltage V Output Voltage Adjustment ...
Page 4
Buck/Boost Regulating Charge Pump in µMAX (Circuit of Figure 10µ 0.33µ OUTPUT VOLTAGE RIPPLE vs. INPUT VOLTAGE 100 I = 100mA 80 OUT 50mA OUT ...
Page 5
Figure 10µ 0.33µ LINE-TRANSIENT RESPONSE R = 33Ω LOAD 1 -4.2V 2 -2.5V 100µs/div CH1 20mV/div, AC-COUPLED OUT CH2 1V/div, AC-COUPLED IN PIN NAME Open-Drain Power-OK ...
Page 6
Buck/Boost Regulating Charge Pump in µMAX Detailed Description The MAX1759’s unique charge-pump architecture allows the input voltage to be higher or lower than the regulated output voltage. Internal circuitry senses V and V and determines whether V OUT stepped up ...
Page 7
CXN PGND S1 6 SHDN BIAS 2 POK 1 OUT-LOW N GND 5 Figure 2. Functional Diagram _______________________________________________________________________________________ Buck/Boost Regulating Charge Pump in µMAX 7 CXP 8 S2 MAX1759 BUCK-BOOST CONTROL ENABLE 1.5MHz OSC OUT 9 R1 ...
Page 8
Buck/Boost Regulating Charge Pump in µMAX Capacitor Selection Optimize the charge-pump circuit for physical size, out- put current, and output ripple by selecting capacitors and C . See Table 1 for suggested capacitor IN X OUT ...
Page 9
POK SHDN GND PLANE Figure 4a. MAX1759 Component Placement Guide _______________________________________________________________________________________ Buck/Boost Regulating Charge Pump in µMAX V OUT Figure 4b. MAX1759 Recommended PC Board Layout POK SHDN V OUT V ...
Page 10
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...