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tps65250/1,你看看咋样，够用吗？
6 `6 v8 J+ W/ l% C% k
% V. d: [: P* GInput Supply Voltage Range 0 ]! B& Q* G" @/ n, E, n
(4.5 V - 18 V)& e' r. b5 w; h& {
0.8 V, 1% Accuracy Reference% `* p' V3 Y" }$ A2 g
Continuous Loading: 3 A (Buck 1), k( ~2 d& ^" w8 R
2 A (Buck 2 and 3), M. X& L5 `9 e0 }; o _8 ~9 {
Maximum Current: 3.5 A (Buck 1),
. S: r0 `! x6 C2.5 A (Buck 2 and 3) h8 n# M- h7 Q9 x. U* q9 \# V9 t
Adjustable Switching Frequency
5 F1 c5 G0 F. K300 kHz - 2.2 MHz Set By External Resistor
; g& J$ P- P& H$ P( H! Z, QExternal Synchronization Pin for Oscillator/ W- E9 ~& Q8 [- s! ~
External Enable/Sequencing and Soft Start Pins2 H$ S: X4 N) S6 V: W
Adjustable Current Limit Set By External Resistor9 W6 G; h) ^1 ~. X8 ?2 o
Soft Start Pins q8 r+ }+ i M8 g6 G2 f: c
Current-Mode Control With Simple Compensation Circuit
! N( R: i% m3 t) w4 UPower Good and Reset Generator4 u7 n2 M I; Q/ S5 S) K& l) h3 e
Storage and Release Circuit Optimized for Reduction of Storage
9 _. }2 j) J2 f" i2 V3 C8 I4 nCapacitance in Dying Gasp Mode (Option)3 F& o7 C2 U/ G
Low Power Mode Set By External Signal
2 i9 r( s' Z6 U" v/ @& h* `QFN Package, 40-Pin 6 mm x 6 mm RHA |
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发表于 2013-8-20 22:18
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支持！
反对！
发表于 2013-8-22 08:23
楼主
