ZCC66099同步升压加LDO 替代SGM66099

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The ZCC66099 is a synchronous step-up converter
with 0.65μA ultra low quiescent current. It is designed
4 g  ^9 ^9 Q9 G- j) I. h' h  ]% @for products powered by alkaline battery, NiMH
. ?; R0 B' x2 p/ }5 ~rechargeable battery, Li-Mn battery or rechargeable Li-
Ion battery, for which high efficiency under light load
# S( J5 j$ [6 |. ^: b( `# o: Lcondition is critical to achieve long battery life operation.
. p' I; M! x- ?( x1 bThe ZCC66099 step-up converter only consumes
& A( M' p- B1 Z  p" \" U0 L0.65μA quiescent current under light load condition and
6 f# V8 B( ^4 D" E0 R" _9 dcan achieve up to 75% efficiency at 10μA load with
fixed output voltage version. It can also support up to
; V/ R* g) L: n1 J0 }2 A300mA output current from 3.3V to 5V conversion, and
6 l6 v  r0 W1 ?5 ]7 H- Lachieve up to 93% at 200mA load.
( h+ p. A. f7 F$ s% r7 gThe ZCC66099 also offers both down mode and pass-
through operation for different applications. In down
mode, the output voltage can still be regulated at target
. u3 a/ Q: u; D! @. qvalue even when input voltage is higher than output
voltage. In pass-through mode, the output voltage
' B2 k! t7 s7 T; D7 afollows input voltage. The ZCC66099 exits down mode
0 I" N- h; F: [0 d3 Land enters into pass-through mode when VIN > VOUT +
+ o. \! h/ p8 T7 o2 m3 `; G0.3V.
The ZCC66099 supports true shutdown function when
) v' p7 v  Y+ Xit is disabled, which disconnects the load from the input
/ n5 E, D  q; ]2 R  ysupply to reduce the current consumption.
The ZCC66099 offers both adjustable output voltage
version and fixed output voltage versions. It is available
7 t5 j% U- `# R* q( |in Green WLCSP-1.22×0.83-6B and TDFN-2×2-6AL
1 T8 P: r" ]7 U0 rpackages.

, |+ p4 w8 o4 I, O3 n
  i9 g0 P* @4 a9 i; A( S. D7 {+ o