ZCC66099同步升压加LDO 替代SGM66099

Siweidianzi

The
! n$ u; @9 ]3 Z9 {ZCC66099 is a synchronous step-up converter
with
* ^7 f: |2 P% k# z  u5 y/ V0.65μA ultra low quiescent current. It is designed
for
& j/ k, u! w# L( cproducts powered by alkaline battery, NiMH
2 Z* e7 d, w5 t( k! M, f0 p+ ?# S4 drechargeable battery, Li-Mn battery or rechargeable Li-
Ion battery, for which high efficiency under light load
: ^* s& ?9 h( f/ f3 C# qcondition is critical to achieve long battery life operation.
The ZCC66099 step-up converter only consumes
0.65μA quiescent current under light load condition and
% }5 J% V& x) }+ w) T1 zcan achieve up to 75% efficiency at 10μA load with
3 l8 i  E9 N/ q4 s; dfixed output voltage version. It can also support up to
# f' @+ Z0 Y3 l/ c  Q300mA output current from 3.3V to 5V conversion, and
achieve up to 93% at 200mA load.
# _2 j5 D8 l( W* s# G8 dThe ZCC66099 also offers both down mode and
$ j+ _# ?+ ~" p/ Q8 g* dpass-
through operation for different applications. In
down
mode, the output voltage can still be regulated at
target
& V) c3 ~" _  e, U' [# Rvalue even when input voltage is higher than output
voltage. In pass-through mode, the output voltage
+ O9 x& e$ V) J) afollows input voltage. The ZCC66099 exits down mode
" t, s) [" v( K6 b1 ~/ ]and enters into pass-through mode when VIN > VOUT +
0.3V.
The ZCC66099 supports true shutdown function when
; A" d# \% `( v* E4 o) ait is disabled, which disconnects the load from the input
supply to reduce the current consumption.
% j( {9 U. p7 H) g! w: jThe ZCC66099 offers both adjustable output voltage
) N! }- N* n2 J+ bversion and fixed output voltage versions. It is available
  `- ~* y0 C- Cin Green WLCSP-1.22×0.83-6B and TDFN-2×2-6AL
packages.
TYPICAL APPLICATION
' q, ^" P4 t* P) f( E" `& W/ ~& G●Operating Input Voltage Range: 0.9V to 5.2V
- G; C4 i8 B* F6 D& Q/ ~) L●Ultra Low Quiescent Current
 0.6μA Ultra Low IQ into VOUT Pin
- v2 R  X+ J7 t 0.05μA Ultra Low IQ into VIN Pin
●1.2MHz Fixed Frequency Operation
* I' b8 o0 A, W1 l* j. R●Adjustable Output Voltage from 2.5V to 5.2V
$ _) _+ S! p) `●Fixed Output Voltage Versions Available
" v; A' u3 U" z●Power-Save Mode for Improved Efficiency at Low
6 I& r  v2 k# G% f9 ^- ]Output Power
●Regulated Output Voltage in Down Mode
●True Disconnection During Shutdown
+ h& M: }. q7 V6 y+ V●Up to 75% Efficiency at 10μA Load with Fixed
$ Z5 H. P7 p  z0 i( C" SOutput Voltage Version
) v$ u6 S$ e# e7 T% l7 \  x& I●Up to 93% Efficiency from 10mA to 300mALoad
6 S' Q3 F* A: B- ~# s8 z, m●-40℃ to +85℃ Operating Temperature Range
●Available in Green WLCSP-1.22×0.83-6B and
TDFN-2×2-6AL Packages
. M  W5 \$ \& ?7 OAPPLICATIONS
) r/ D4 z* C: GMemory LCD Bias
Optical Heart Rate Monitor LED Bias
6 }, E/ g! o0 v4 Q; z5 zWearable Applications
Low Power Wireless Applications
Portable Products
Battery Powered Systems
+ l% `+ Q4 O( Q) |; G% H