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tps65250/1,你看看咋样，够用吗？; S/ Z9 ~( G8 k1 U2 o- C7 y, ~9 i l
( ]) U( z# I$ u, T8 g. OInput Supply Voltage Range 6 P4 S+ L$ N8 V, A, r( t
(4.5 V - 18 V)) Y l' K/ L) f9 {) z
0.8 V, 1% Accuracy Reference2 B* j- C9 j) ~
Continuous Loading: 3 A (Buck 1), # R4 Q# b' J: U9 d4 Q" a4 [
2 A (Buck 2 and 3)' f5 C5 V) S. M# `9 G, s+ d( g4 V
Maximum Current: 3.5 A (Buck 1), ( {8 F& e( X- |: a
2.5 A (Buck 2 and 3)/ A3 H# }& d; N* s* j
Adjustable Switching Frequency
8 x, t$ ^% |0 P9 _- ~& N300 kHz - 2.2 MHz Set By External Resistor
3 o1 D4 F4 O+ B% X( e' ? mExternal Synchronization Pin for Oscillator
7 \! K& h* i/ }' v! [/ eExternal Enable/Sequencing and Soft Start Pins
/ Y6 M l, ~, t5 o3 ]& IAdjustable Current Limit Set By External Resistor
6 |# o( ~2 h: SSoft Start Pins
]& B* o+ O- g0 f0 e9 UCurrent-Mode Control With Simple Compensation Circuit
1 G0 b1 H+ l2 m6 B+ s. g" c; P% v, pPower Good and Reset Generator
" U! @' b4 j! UStorage and Release Circuit Optimized for Reduction of Storage 9 g8 ~/ F) L) [, c7 D
Capacitance in Dying Gasp Mode (Option)5 u. E2 \9 @! x
Low Power Mode Set By External Signal
$ J+ }5 w, s* K; o6 ^4 G- U" c% hQFN 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