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tps65250/1,你看看咋样,够用吗?; C+ P, Y% c: ]: |/ D% V
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Input Supply Voltage Range
) d& H% z9 k; u/ }+ v# f8 \(4.5 V - 18 V)4 f8 o. @3 j4 X& Z3 @
0.8 V, 1% Accuracy Reference
# L; n/ D: A- U. QContinuous Loading: 3 A (Buck 1), 3 [- h7 d( {& W7 a
2 A (Buck 2 and 3)
& O3 J7 l8 I2 s B J* hMaximum Current: 3.5 A (Buck 1),
. N8 b- L+ L- d# `2.5 A (Buck 2 and 3)
3 \1 C: P7 Y& k! a- l' t+ hAdjustable Switching Frequency / `, [! @0 Q7 C/ R( N
300 kHz - 2.2 MHz Set By External Resistor( Z9 q7 @# N& O
External Synchronization Pin for Oscillator
1 l8 a( k7 [- gExternal Enable/Sequencing and Soft Start Pins9 _% A" ?7 v8 ^6 b" c
Adjustable Current Limit Set By External Resistor
# n0 @. _1 P2 R7 ~! g1 [Soft Start Pins8 b, a8 N, g- J; t6 P" T. }" I
Current-Mode Control With Simple Compensation Circuit7 X0 [' S+ m7 C$ l% a7 d1 }1 ?
Power Good and Reset Generator
! O4 ^/ g9 J# h6 wStorage and Release Circuit Optimized for Reduction of Storage
4 Y; U2 j5 R" gCapacitance in Dying Gasp Mode (Option)7 g+ S/ l3 |6 L3 ?; P
Low Power Mode Set By External Signal& k% U4 k+ Q9 {5 s
QFN Package, 40-Pin 6 mm x 6 mm RHA |
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