Datasheet LTM4604A (Analog Devices) - 3

LTM4604A
e lecTrical characTerisTics The
l
denotes the specifications which apply over the specified internal operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = 5V unless otherwise noted. See Figure 15. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN(DC) Input DC Voltage l 2.375 5.5 V VOUT(DC) Output Voltage, Total Variation CIN = 10µF, COUT = 22µF × 3, RFB = 5.69k 1.482 1.5 1.518 V with Line and Load VIN = 2.375V to 5.5V, IOUT = 0A to 4A (Note 3) l 1.474 1.5 1.522 V
Input Specifications
VIN(UVLO) Undervoltage Lockout IOUT = 0A 1.75 2 2.3 V Threshold IINRUSH(VIN) Peak Input Inrush Current at IOUT = 0A, CIN = 10µF, COUT = 22µF × 3, Start-Up RUN/SS = 0.01µF, VOUT = 1.5V VIN = 3.3V 0.7 A VIN = 5V 0.7 A IQ(VIN NOLOAD) Input Supply Bias Current VIN = 3.3V, No Switching 60 µA VIN = 3.3V, VOUT = 1.5V, Switching Continuous 28 mA VIN = 5V, No Switching 100 µA VIN = 5V, VOUT = 1.5V, Switching Continuous 35 mA Shutdown, RUN = 0, VIN = 5V 7 µA IS(VIN) Input Supply Current VIN = 2.5V, VOUT = 1.5V, IOUT = 4A 2.9 A VIN = 3.3V, VOUT = 1.5V, IOUT = 4A 2.2 A VIN = 5V, VOUT = 1.5V, IOUT = 4A 1.45 A
Output Specifications
IOUT(DC) Output Continuous Current VIN = 3.3V, VOUT = 1.5V (Note 3) 4 A Range ΔVOUT(LINE) Line Regulation Accuracy VOUT = 1.5V, VIN from 2.375V to 5.5V, IOUT = 0A l 0.1 0.2 % VOUT ΔVOUT(LOAD) Load Regulation Accuracy VOUT = 1.5V, 0A to 4A (Note 3) V V l 0.3 0.6 % OUT IN = 3.3V VIN = 5V l 0.3 0.6 % VOUT(AC) Output Ripple Voltage IOUT = 0A VIN = 3.3V, VOUT = 1.5V 10 mVP-P VIN = 5V, VOUT = 1.5V 12 mVP-P fS Output Ripple Voltage IOUT = 4A, VIN = 5V, VOUT = 1.5V 1.25 MHz Frequency ΔVOUT(START) Turn-On Overshoot VOUT = 1.5V, RUN/SS = 10nF, COUT = 22µF × 3, IOUT = 0A VIN = 3.3V 20 mV VIN = 5V 20 mV tSTART Turn-on Time COUT = 22µF × 3, VOUT = 1.5V, IOUT = 1A Resistive Load, TRACK = VIN and RUN/SS = Float VIN = 3.3V 1.5 ms VIN = 5V 1.0 ms ΔVOUT(LS) Peak Deviation for Dynamic Load: 0% to 50% to 0% of Full Load, Load Step COUT = 22µF ×3 Ceramic VIN = 5V, VOUT = 1.5V 25 mV tSETTLE Settling Time for Dynamic Load: 0% to 50% to 0% of Full Load Load Step VIN = 5V, VOUT = 1.5V 10 µs IOUT(PK) Output Current Limit VIN = 3.3V, VOUT = 1.5V 8 A VIN = 5V, VOUT = 1.5V 8 A 4604afc For more information www.linear.com/LTM4604A 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Package Photograph Related Parts