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L5988D

ST Microelectronics
Part Number L5988D
Manufacturer ST Microelectronics
Description 4A continuous (more than 5 A pulsed) step-down switching regulator
Published Jul 24, 2009
Detailed Description www.DataSheet4U.com L5988D 4 A continuous (more than 5 A pulsed) step-down switching regulator with synchronous rectifi...
Datasheet PDF File L5988D PDF File

L5988D
L5988D

Overview
www.
DataSheet4U.
com L5988D 4 A continuous (more than 5 A pulsed) step-down switching regulator with synchronous rectification Preliminary Data Features I I I I I I I 4 A output current (more than 5 pulsed) Operating input voltage from 2.
9 V to 18 V External 1.
8 V ± 2 % reference voltage Output voltage from 0.
6 to input voltage MLCC compatible 200 ns TON Programmable UVLO matches 3.
3 V, 5 V and 12 V bus FSW programmable up to 1 MHz Voltage feed-forward Zero-load current operation Programmable current limit on both switches Programmable sink current capability Pre-bias start up capability Thermal shutdown I I HTSSOP 16 Applications I I I I I I I I Consumer: STB, DVD, LCD TV, VCR, car radio, LCD monitors Networking: XDSL, modems, routers and switches Computer and peripherals: printers, audio / graphic cards, optical storage, hard disk drive Industrial: DC-DC modules, factory automation I Figure 1.
Test application circuit January 2009 Rev 1 1/53 www.
st.
com 53 This is preliminary information on a new product now in development or undergoing evaluation.
Details are subject to change without notice.
www.
DataSheet4U.
com Contents L5988D Contents 1 2 3 4 5 Description .
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6 Pin function .
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7 Maximum ratings .
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8 Electrical characteristics .
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9 Functional description .
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12 5.
1 5.
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4 5.
5 Multifunction pin .
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13 Oscillator and synchronization .
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15 External voltage reference .
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