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tps65250/1,你看看咋样,够用吗?
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5 P: h6 A: v3 v! C& z$ b# l3 zInput Supply Voltage Range 1 F2 W `3 |/ x5 A& A5 n
(4.5 V - 18 V)
5 }3 H' B8 f# ]: Y0.8 V, 1% Accuracy Reference3 M2 ?, t: j( {) F# h% x
Continuous Loading: 3 A (Buck 1),
) h" d$ I5 ^) w; f H( F2 A (Buck 2 and 3)
! l( J9 Z0 e; z2 p' e" G3 @1 d8 OMaximum Current: 3.5 A (Buck 1), 6 B( V( P2 j( S; k. _8 G/ U
2.5 A (Buck 2 and 3)- m3 C, x; Y3 O% B
Adjustable Switching Frequency # r g8 G7 G5 B' w- @
300 kHz - 2.2 MHz Set By External Resistor
2 N8 U _6 }7 E8 c2 f4 `+ MExternal Synchronization Pin for Oscillator# r+ Y2 x5 ~5 ~. @8 U' W8 G9 K
External Enable/Sequencing and Soft Start Pins
3 y# b% N/ _% Y% D- j1 GAdjustable Current Limit Set By External Resistor
/ r+ r1 g3 D5 v9 |- XSoft Start Pins* Z( e4 }5 h/ {: W" y5 w: N
Current-Mode Control With Simple Compensation Circuit
% ?- G/ B9 y: M7 Y) CPower Good and Reset Generator
/ u6 G6 Q6 ~* R* a9 tStorage and Release Circuit Optimized for Reduction of Storage
& [. n! `2 S9 s, A+ I" RCapacitance in Dying Gasp Mode (Option)& [; g$ H# J+ i7 H5 j
Low Power Mode Set By External Signal, Y2 f; Q1 a, A0 v4 U) m3 v* B' U
QFN Package, 40-Pin 6 mm x 6 mm RHA |
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