F e a t u r e s
Fixed 4.9V ± 2% Output
VIN Range: 2.7V to 4.5V
Output Current: Up to 110m A（VIN≥3V）
Up to 230mA（VIN≥3.6V） Low Noi Constant Frequency (360kHz) Operation
Shutdown Current <1µA
No Inductors
Available in Low Profile 6-Lead SOT23 Package
A p p l i c a t i o n s
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Smart Card Readers D e s c r i p t i o n
The HX4004A is a low noi switched capacitor voltage doubler. It produce a regulated output voltage from a 2.7V to 4.5V input. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the HX4004A ideally suited for small, battery-powered applications.
The HX4004A have thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to <1uA.燃气管道安装规范
The HX4004A is available in the industry standard SOT-23-6L power packages.
PCMCIA Local 5V Supplies
T y p i c a l A p p l i c a t i o n
Figure 1: Regulated 4.9V Output
P i n D e s c r i p t i o n
Top View
SOT-23-6L
A b s o l u t e M a x i m u m R a t i n g s (Note 1)
V IN ……………………………….…………………………….…….….…..….………- 0.3V to 6V V OUT ………………………………………………………………………………….….- 0.3V to 5.5V VOUT Short-circuit Duration.…………………………………………..….………………indefinite V EN ……………………………………………………...…………………….…...……- 0.3V to 6V IOUT (Note 2) …………………….................................………………………...................... 300mA Operating Temperature Range (Note 3)……………………………………………...……- 30℃ to 85℃ Lead Temperature (Soldering 10 c.) ……………………………………..………………300℃ Storage Temperature Range ………………………………………………..…..- 65℃ to 125℃
Note 1: Absolute Maximum Ratings are tho values beyond which the life of a device may be impaired. Note 2: Bad on long term current density limitations.
小王子怎么画Note 3: The HX4004A are guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls.
PIN NUMBER SOT-23-6L
PIN NAME 1
VOUT 2 GND 3 EN 4 C- 5 VIN 6
C+
E l e c t r i c a l C h a r a c t e r i s t i c s
The specifications are at TA = 25 ℃. EN= V IN , C IN =C OUT =C FLY =10uF,unless otherwi noted. ＊ EFFI = [(Output Voltage × Output Current) / (Input Voltage × Input Current)] × 100%
T y p i c a l P e r f o r m a n c e C h a r a c t e r i s t i c s
尽志无悔TA=25℃, EN= V IN , C IN =10uF, C OUT =10uF, C FLY =10uF, unless otherwi noted.
PARAMETER
C O N
D I T I O N S MIN TYP MAX UNITS Input Voltage Range (V IN )
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2.7
清蒸鱼头4.5 V Output Voltage Range (V OUT ) 2.7V <V IN <
5.5V, I OUT < 65mA 4.83 4.9 4.97
V
I SHDN Shutdown Current EN=0V,V OUT = 0V 0.2 µA No Load Input Current I OUT = 0mA, V IN = 3V 0.17 mA Output Ripple (VR) V IN = 3.6V , I OUT = 100mA 20 mVP-P Efficiency
V IN = 3V, I OUT =100mA 78 % Switching Frequency ( f osc )
V IN = 3.6V , I OUT = 100mA
360
kHz
Output Noi（V IN=3.6V, I LOAD=100mA）SW Noi（V IN=3.6V, I LOAD=100mA）
Output Noi（V IN=4.2V, I LOAD=100mA）SW Noi（V IN=4.2V, I LOAD=100mA）
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