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本帖最后由 2355368874 于 2022-8-23 09:17 编辑
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0 \( U8 Z! ^. y* h; q6 VGeneral Description
$ P l8 _" J$ v, bThe SL1588H is a low EMI signature, asynchronous, step-down, switch-mode converter with internal power MOSFETs.
8 k1 @# d5 |: ~1 U/ f: i2 t; K. TIt offers a very compact solution to provide a 2A continuous current over a wide input supply range, with excellent load+ J( f/ l! b; l$ P1 ^4 L% H
and line regulation. S L158 achieves low EMI signature with well controlLED switching edges. Fault condition; C K, A+ w5 l6 k1 b4 u* } D- ]
protection includes programmable-output over-voltage protection, Constant on time Mode, and thermal shutdown./ Q8 u) C2 [, {: S; ~
SL158 8 H requires a minimal number of readily available standard external components. It is available in SOT23-6 package.
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9 L$ E! L& p2 j5 vFeatures7 ?- r! A4 ~) t8 P1 f% X5 I3 x- _5 P
• Wide 4.5V to 36V Operating Input Range
; n5 T/ w y7 w1 d• 2.0A Continuous Output Current1 Y# e1 c" h7 U) g* w8 ~5 U; @
• 500KHz Switching Frequency# o: `* M- s' J. c7 Y! M4 w
• Short Protection with Hiccup-Mode
' n- I% B2 Y5 e) P# o2 [2 c% I• Built-in Over Current Limit' f3 w! f4 @) s9 P/ I
• Programmable Output Over-Voltage Protection
% _1 \4 Y$ I: X* l& R• DCM Mode for High Efficiency in Light Load$ y2 z n/ g9 y% S% [, }
• Integrated internal Soft-Start6 T/ L! r C6 F, m3 N
• 120/80mΩ Low RDS(ON) Internal MOSFETs' K* \% O1 K0 S; R4 v' ~0 S
• Output Adjustable from 0.6V
6 D5 l8 D% h" T• Low EMI Signature
! U6 E* v: X0 U& u/ P5 k& E3 C• 99% Duty cycle
! d5 ]; m; ]% w+ v) O' _• Integrated internal compensation, d. d7 O2 i {3 t; T, ?5 u* K
• Thermal Shutdown* J; r" k7 e5 w8 A- [
• Available in SOT23-6 Package
( X* n z3 i g/ @! r• Constant on time Mode$ _8 H" k* v8 G
$ c$ u) q2 S6 k3 W& _Applications( u4 z) P# K" W
• Automotive Entertainment
% `1 } g& x3 g% Q• Wireless and DSL modems. ^( M. c& a) G- H- ~2 L, s8 X1 l% e
• Computer Entertainment& ]5 H0 ~$ c( i' i/ Z# y. d" V, s
• Power Supply for Car Chargers
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3 m$ [$ B S9 JTypical Application Circuit' I" e: C+ k" p; m4 p
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