ZCC66099同步升压加LDO 替代SGM66099

四维电子

FEATURES
  g$ y+ J  W3 z* ~/ f+ _6 p8 D; \The ZCC66099 is a synchronous step-up converter
. E% [8 [  H- h9 I0 Cwith 0.65μA ultra low quiescent current. It is designed
  l8 N' w5 G2 Nfor products powered by alkaline battery, NiMH
3 v; p0 w: ?8 {4 R2 |rechargeable battery, Li-Mn battery or rechargeable Li-
Ion battery, for which high efficiency under light load
condition is critical to achieve long battery life operation.
. Y+ Y! m" k# DThe ZCC66099 step-up converter only consumes
1 z1 J4 {6 ]4 }  P- `: V+ X$ b0.65μA quiescent current under light load condition and
9 K: T, \4 q+ B  m$ z# j; B, @can achieve up to 75% efficiency at 10μA load with
3 W, A3 @8 j: Gfixed output voltage version. It can also support up to
300mA output current from 3.3V to 5V conversion, and
achieve up to 93% at 200mA load.
, l( T4 q+ O5 ]0 g& wThe ZCC66099 also offers both down mode and pass-
) I" n, G( B. i7 {7 n, B, Othrough operation for different applications. In down
mode, the output voltage can still be regulated at target
value even when input voltage is higher than output
voltage. In pass-through mode, the output voltage
follows input voltage. The ZCC66099 exits down mode
& ^* l3 t, r3 B0 ?and enters into pass-through mode when VIN > VOUT +
( s9 D" h7 r: ^6 p) E# X! {0.3V.
# @8 P  j. Q: R" N9 k2 X2 d# QThe ZCC66099 supports true shutdown function when
2 J: C6 \' i1 g& r) [( A7 ]it is disabled, which disconnects the load from the input
supply to reduce the current consumption.
The ZCC66099 offers both adjustable output voltage
* H" {. K% ]7 n4 Jversion and fixed output voltage versions. It is available
. M5 K9 h, P- |: n% [+ Y' f' D! cin Green WLCSP-1.22×0.83-6B and TDFN-2×2-6AL
1 J& ?6 M2 u4 s6 H6 g2 ?packages.
. X' X& q; b+ Y# v: STYPICAL APPLICATION
* x: Z( E5 |" Z- w●Operating Input Voltage Range: 0.9V to 5.2V
●Ultra Low Quiescent Current
 0.6μA Ultra Low IQ into VOUT Pin
 0.05μA Ultra Low IQ into VIN Pin
0 [! s! l3 J% A0 f% @: t●1.2MHz Fixed Frequency Operation
●Adjustable Output Voltage from 2.5V to 5.2V
# J; e) T% c/ b" ^●Fixed Output Voltage Versions Available
●Power-Save Mode for Improved Efficiency at Low
; b8 x# E- S* POutput Power
●Regulated Output Voltage in Down Mode
●True Disconnection During Shutdown
●Up to 75% Efficiency at 10μA Load with Fixed
Output Voltage Version
, j8 a3 k+ a- W7 K# K% M; ]0 e) S●Up to 93% Efficiency from 10mA to 300mALoad
●-40℃ to +85℃ Operating Temperature Range
& v4 _9 B: S7 w) I- C; s●Available in Green WLCSP-1.22×0.83-6B and
TDFN-2×2-6AL Packages
# z" L/ q9 w! j/ Y% TAPPLICATIONS
% {$ `8 Z! a7 p0 o5 R: |: n5 v) I6 _9 bMemory LCD Bias
; L2 r2 Z/ k6 x0 [; _Optical Heart Rate Monitor LED Bias
6 i% h9 u0 o0 z, {* IWearable Applications
' X% K: v$ k( l! h% E% NLow Power Wireless Applications
Portable Products
9 h" b0 u' S+ Z4 ]/ s" p8 qBattery Powered Systems
( w* h, ], i8 E9 E) ]6 i