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tps65250/1,你看看咋样,够用吗?: I1 H0 O; S7 ?3 F' Y
+ X# Z# \2 r" L/ E" e6 tInput Supply Voltage Range
. X8 z4 \6 q' w; D(4.5 V - 18 V)
5 N4 B+ o* d1 ~: G5 L- I0.8 V, 1% Accuracy Reference
, A" E0 U! y' C9 f8 @! tContinuous Loading: 3 A (Buck 1), 2 M1 k% G, \; a4 B5 d+ W8 o
2 A (Buck 2 and 3). `! p E( D# L0 }% y, k0 `
Maximum Current: 3.5 A (Buck 1),
5 Z( S7 v# Q( T2.5 A (Buck 2 and 3)4 D$ K9 m2 D* z! P8 L
Adjustable Switching Frequency
6 A6 l. f! o6 w: o6 {! y3 o300 kHz - 2.2 MHz Set By External Resistor
3 _5 T9 D0 |# e7 }$ z. `, ]External Synchronization Pin for Oscillator
# N1 C5 N% ~) Y* [External Enable/Sequencing and Soft Start Pins
2 x w8 T# ?" w; L7 t: qAdjustable Current Limit Set By External Resistor
$ M* c, O8 U' e: S# o6 [4 OSoft Start Pins4 N1 A( @3 H2 w! k( r
Current-Mode Control With Simple Compensation Circuit
5 L: J5 N- S2 O, rPower Good and Reset Generator9 E) c% T+ v" t2 F% ^
Storage and Release Circuit Optimized for Reduction of Storage
2 c' E. z& m9 ^0 a4 F2 C7 o$ cCapacitance in Dying Gasp Mode (Option), t1 }2 P+ V/ X f+ R
Low Power Mode Set By External Signal
( D1 u+ K, b. l. Z# ZQFN Package, 40-Pin 6 mm x 6 mm RHA |
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