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2022-10-12 15:59 |
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描述4 M7 O* m; X7 ~" x; k
The SLB628 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The SLB628 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life.
9 v2 o7 b! g$ B1 _The SLB628 features automatic shifting to pulse frequency modulation mode at light loads. The SLB628 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The SLB628 is available in a small 6-pin SOT-23 package.
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特性" z- m0 Y/ s! F" w4 Y3 t5 ?5 \% o
• Integrated 80mΩ Power MOSFET
: d2 U4 Q% v: g$ C a1 |+ C+ j( R) W• 2V to 24V Input Voltage
0 i6 G4 o5 A) \; [( q. j# c• 1.2MHz Fixed switching Frequency( f5 \/ B# X' I) m% T
• Internal 4A Switch Current Limit6 c" H! C T* L* d
• Adjustable Output Voltage
& i$ c$ h0 E9 t# i• Internal Compensation
9 U# ~9 y% A+ U: n7 M* g• Up to 28V Output Voltage: }: V9 C/ |5 q: {
• Automatic Pulse Frequency Modulation' N0 Z' f$ D, f! v1 O
Mode at Light Loads3 F$ |4 W* O& q6 r
• up to 96% Efficiency& F- Z1 F3 h( r1 `
• Available in a 6-Pin SOT23-6 Package
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应用# Q1 O7 ] Y! w8 m5 P. b& r3 ]0 k; ?: g3 N
• Battery-Powered Equipment- E# x9 [% ~2 e# @
• Set-Top Boxed U# G0 {& g8 v" ^% {7 u V4 I- N
• LCD Bais Supply9 A9 @, p2 l8 ?
• DSL and Cable modems and Routers
4 u. @) W6 T9 V0 P# {% S7 C• Networking cards powered from PCI
+ n. _6 G2 N5 U/ @or PCI express slots2 D- ?0 X# ~% R& A5 Z4 W" h
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原理图
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发表于 2022-7-25 14:52
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