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tps65250/1,你看看咋样,够用吗?7 L5 ?# F; g+ T: T. V; N
, p: Y# ?: Y& U" g+ |0 S7 r. \Input Supply Voltage Range
3 k7 ]2 P* {1 w5 s, o1 B(4.5 V - 18 V)" P5 Z; H6 ]; p- P. |2 Y
0.8 V, 1% Accuracy Reference2 G% U+ A* ]% ?8 h% d- o( Q% q8 t
Continuous Loading: 3 A (Buck 1),
! a( Z. M* J& S) E2 D2 A (Buck 2 and 3)
0 R t- o: u( d# Y/ DMaximum Current: 3.5 A (Buck 1),
2 G! C( ]# R. Q! u+ D( U2.5 A (Buck 2 and 3)
# R( z# v5 r. y2 @Adjustable Switching Frequency 5 K& E }* Y2 ]7 A7 C* r
300 kHz - 2.2 MHz Set By External Resistor2 p3 o6 O* n# B1 r! o
External Synchronization Pin for Oscillator% K6 B, n9 ^# R6 |8 M: B" f4 W
External Enable/Sequencing and Soft Start Pins
; I- O! H' x! e0 `Adjustable Current Limit Set By External Resistor
M( @; {. Q( M, o; R1 oSoft Start Pins
2 ^1 ] b! Y+ r. f; Z( u! G8 WCurrent-Mode Control With Simple Compensation Circuit# f% Q7 ]/ f$ Y! V# Q
Power Good and Reset Generator
& R, X, i' y, J$ i: P1 cStorage and Release Circuit Optimized for Reduction of Storage 1 C; Q4 G1 q8 n- D
Capacitance in Dying Gasp Mode (Option)
, ?* t4 _3 n* b0 I7 dLow Power Mode Set By External Signal
0 Y2 C! ~+ m U( X/ X' qQFN Package, 40-Pin 6 mm x 6 mm RHA |
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