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tps65250/1,你看看咋样,够用吗?
5 k: w: }; n' a5 L7 G6 Q6 v0 ^) j8 X* M7 [
Input Supply Voltage Range
- |' t8 L9 w1 A0 D5 g* s; o(4.5 V - 18 V)
& r8 F7 n( C* k9 D) X0.8 V, 1% Accuracy Reference
! H, z! ~* _$ M5 E4 |Continuous Loading: 3 A (Buck 1),
; b6 g3 k) o3 a# r/ z( Y2 A (Buck 2 and 3)* K/ T6 ]( N5 a1 B
Maximum Current: 3.5 A (Buck 1), ; N( v+ s6 y$ S; c ]
2.5 A (Buck 2 and 3)
5 k+ u, m8 a3 p9 {0 L$ aAdjustable Switching Frequency 6 A( g& u; [# G& q W& g
300 kHz - 2.2 MHz Set By External Resistor8 A) ^8 b- c6 }- O
External Synchronization Pin for Oscillator
2 |7 Z: f0 a6 m6 c) h4 h/ l( ^ jExternal Enable/Sequencing and Soft Start Pins: i, _. q8 G$ f' p
Adjustable Current Limit Set By External Resistor" _& L% D9 V/ o/ |
Soft Start Pins5 r# Z: e3 z$ Z% O$ g
Current-Mode Control With Simple Compensation Circuit
K5 ?! d9 w# C. `Power Good and Reset Generator
" [5 L3 g% l4 |7 R4 ]6 n$ c, IStorage and Release Circuit Optimized for Reduction of Storage + j* S: Q0 N: l" N$ f
Capacitance in Dying Gasp Mode (Option)# p* O1 M5 i+ |% ?/ z- F
Low Power Mode Set By External Signal
# X% N" w' t) D7 L- |4 Q7 d# O L% E4 CQFN Package, 40-Pin 6 mm x 6 mm RHA |
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