AP3602A/B 1
May 2007 Rev. 1.3
BCD Semiconductor Manufacturing Limited
General Description
The AP3602A/B are regulated step-up DC/DC converters bad on charge pump technique. The ICs have the ability to supply 100mA constant output current or 250mA peak output current for 100ms from 3.0V to 5V input (2.7V to 4.5 V for AP3602B), so they can be ud as white LEDs driver or flash LED driver.巨蟹男和什么座最配
The AP3602A/B have very low power dissipation and high efficiency in typical applications. Other features include over-temperature protection, low temperature coefficient and etc. to meet some special requirements of hand-held battery powered devices.
Only 3 external capacitors are required in applications,which helps to save space and lower cost. The chips also have a disable terminal to turn on or turn off the chip to ea the u.
The AP3602A/B are available in SOT-23-6 and TSOT-23-6 packages.
Features
·Low Quiescent Current: 13µA Typical ·Regulated Output V oltage Precision: 4%·High Output Current: 100mA when V IN ≥3.0V 50mA when V IN ≥2.7V ·High Frequency: up to 1.2 MHz
·Low Shutdown Supply Current: <1µA
·High Output Peak Current: 250mA for 100ms ·Over Temperature Protection
·
Operating Temperature Range: -40o C to 85o C
Applications
·Mobile Phone Backlight Driver ·Camera Flash LED Driver ·MP3, MP4
·Handheld Device
·
Portable Communication Device
Figure 1. Package Types of AP3602A/B
SOT-23-6
TSOT-23-6
AP3602A/B 2
May 2007 Rev. 1.3
BCD Semiconductor Manufacturing Limited
Figure 2. Pin Configuration of AP3602A/B (Top View)
Pin Configuration
V OUT GND SHDN
C+V IN C -
Pin Description
Pin Number
Pin Name Function
1
V OUT
Regulated Output V oltage. V OUT should be bypasd with a 1µF to 22µF low ESR ceramic capacitor which is placed as clo to the pin as possible for best performance
2GND
Ground. GND should be tied to a ground plane for best performance. The C OUT and C IN should be placed as clo to this pin as possible
3SHDN
Active Low Shutdown Input. A low signal on SHDN disables the AP3602A/B, while a high signal enables the AP3602A/B. SHDN pin must not be allowed to float期货夜盘交易时间
4C-Flying Capacitor Negative Terminal. The flying capacitor should be placed as clo to this pin as possible
5
蟹味菇V IN Input Supply V oltage. V IN should be bypasd with a 1µF to 22µF low ESR ceramic capacitor which is placed as clo to the pin as possible for best performance
6
C+
Flying Capacitor Positive Terminal. The flying capacitor should be placed as clo to this pin as possible
(SOT-23-6/TSOT-23-6)
K/KT Package
AP3602A/B 3
May 2007 Rev. 1.3
警告英语
BCD Semiconductor Manufacturing Limited
SHDN
V IN
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Ordering Information
Package
Temperature Range
Part Number
Marking ID
Packing Type
SOT-23-6
-40 to 85o C AP3602AKTR-E1E7T Tape & Reel AP3602BKTR-E1E8T Tape & Reel TSOT-23-6
-40 to 85o C
AP3602AKTTR-E1S9C Tape & Reel AP3602BKTTR-E1
S9D
Tape & Reel
Circuit Type Package E1: Lead Free AP3602
TR: Tape and Reel K: SOT-23-6-Output V oltage B: 4.5V
Functional Block Diagram
GND
沉醉的反义词
C+Figure 3. Functional Block Diagram of AP3602A/B
C-
V OUT
A: 5V
KT: TSOT-23-6
AP3602A/B 4
May 2007 Rev. 1.3
BCD Semiconductor Manufacturing Limited
Note 1: Stress greater than tho listed under "Absolute Maximum Ratings" may cau permanent damage to the device. The are stress ratings only, and functional operation of the device at the or any other conditions beyond tho indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-imum Ratings" for extended periods may affect device reliability.
Parameter
Symbol
Min
Max
Unit
Input V oltage
V IN
AP3602A 2.75V
AP3602B
2.7
4.5
Operating Temperature
T A
-40
85
o C
Recommended Operating Conditions
Absolute Maximum Ratings (Note 1)
Parameter Symbol Value Unit Input V oltage V IN 7V Output V oltage V O 7V SHDN Pin V oltage
V SHDN 7V
Thermal Resistance (Junction to Ambient, no Heat sink) R θJA 300o C/W Operating Junction Temperature T J 150o C Storage Temperature Range T STG -65 to 150o C Lead Temperature (Soldering, 10c)T LEAD
260o
C
ESD (Human Body Model)
2000
V
AP3602A/B 5
纵向水平杆
May 2007 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
(C FLY =1µF, C IN =C OUT =10µF, T A =25o C, unless otherwi specified.)
For AP3602A
Parameter Symbol Conditions
Min Typ
Max Unit Input V oltage V IN V O =5V
2.7
V O V Quiescent Current
I Q
V IN =2.7V to 5.0V , I O =0mA, V SHDN =V IN , Not Switching 1330µA
Output V oltage V O 2.7V<V IN <5V , I O ≤50mA 4.8 5.0 5.2V
3.0V<V IN <5V , I O ≤100mA
4.8
qq登不上去了怎么办
5.0 5.2Shutdown Supply Current I SHDN
2.7V<V IN <
3.6V , I O =0, V SHDN =0V 0.011µA 3.6V<V IN <5.0V , I O =0, V SHDN =0V 2.5
Ripple V oltage V RIPPLE
V IN =2.7V , I O =50mA 25mV PP V IN =3V , I O =100mA 30Efficiency η
V IN =2.7V , I O =50mA 92%Frequency
怎样自制豆腐f OSC Oscillator free running
1.2
MHz SHDN Input Threshold High
V IH
1.4
V
SHDN Input Threshold Low
V IL 0.3SHDN Input Current High I IH V SHDN =V IN -11µA
SHDN Input Current Low I IL V SHDN =GND -1
1
V OUT Turn-on Time t ON V IN =3V , I O =0mA
0.2ms Short-Circuit Current
I SC
V IN =3V , V O =GND, V SHDN =3V
300
mA
Electrical Characteristics
