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PDF APS1006 Data sheet ( Hoja de datos )
| Número de pieza | APS1006 | |
| Descripción | 600mA Synchronous Step-Down Converter | |
| Fabricantes | APSemi | |
| Logotipo |  |
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APSemi
APS1006
GENERAL DESCRIPTION
The APS1006 is a 1.5MHz constant frequency,
slope compensated current mode PWM step-
down converter. The device integrates a main
switch and a synchronous rectifier for high
efficiency without an external Schottky diode. It
is ideal for powering portable equipment that
runs from a single cell lithium-Ion (Li+) battery.
The APS1006 can supply 600mA of load current
from a 2.5V to 5.5V input voltage. The output
voltage can be regulated as low as 0.6V. The
APS1006 can also run at 100% duty cycle for
low dropout operation, extending battery life in
portable system. Pulse Skipping Mode operation
at light loads provides very low output ripple
voltage for noise sensitive applications.
The APS1006 is offered in a low profile (1mm)
5-pin, SOT package, and is available in an
adjustable version and fixed output voltage of
1.2V, 1.5V and 1.8V.
APPLICATIONS
• Cellular and Smart Phones
• Microprocessors and DSP Core Supplies
• Wireless and DSL Modems
• PDAs
• MP3 Player
• Digital Still and Video Cameras
• Portable Instruments
1.5 MHz, 600mA Synchronous
Step-Down Converter
FEATURES
• High Efficiency: Up to 96%
• 1.5MHz Constant Switching Frequency
• 600mA Output Current at VIN=3V
• Integrated Main switch and synchronous
rectifier. No Schottky Diode Required
• 2.5V to 5.5V Input Voltage Range
• Output Voltage as Low as 0.6V
• 100% Duty Cycle in Dropout
• Low Quiescent Current: 300µA
• Slope Compensated Current Mode Control
for Excellent Line and Load Transient
Response
• Short Circuit Protection
• Thermal Fault Protection
• <1µA Shutdown Current
• Space Saving 5-Pin Thin SOT23 package
EVALUATION BOARD
Standard Demo Board
EV1006ET5-02
Dimensions (mm)
60X x 60Y x 1.6Z
Typical Application
Figure 1. Basic Application Circuit with
APS1006 adjustable version, Vout = 1.8V
Analog Power Semiconductor
1 of 12
Efficiency vs Output Current
100
90 VIN = 2.7V
80 VIN = 3.6V
70
60
50
40 VIN = 4.2V
30
VOUT = 1.8V
20 TA = 25C
10
0.1
1 10 100
OUTPUT CURRENT (mA)
1000
Ver.1.3
Free Datasheet http://www.Datasheet4U.com
1 page  
APSemi
Efficiency vs Load Current
100
90 VIN = 3.6V
VOUT 2.5V
80 TA = 25C
70
60 L = 10 uH
50
L = 4.7 uH
40
30
20 L = 2.2 uH
10 L = 1.4 uH
0
0.1 1 10 100
LOAD CURRENT (mA)
1000
Frequency vs Input Voltage
1.46
1.45
1.44
1.43
VOUT = 1.8V
ILOAD = 150mA
L = 2.2uH
1.42
1.41
1.4
1.39
1.38
1.37
1.36
2.7
3.15
3.6 4.05 4.5 4.95
INPUT VOLTAGE (V)
5.4
Reference Voltage vs Temperature
0.6080
0.6072 VIN = 3.6V
0.6064
0.6056
0.6048
0.6040
0.6032
0.6024
0.6016
0.6008
-50 -30 -10 10 30 50 70 90
TEMPERATURE (C)
Analog Power Semiconductor
5 of 12
APS1006
1.84
1.82
1.8
1.78
1.76
1.74
1.72
1.7
1.68
1.66
1.64
0
Outpu Voltage vs Load Current
VOUT = 1.8V
VIN = 3.6V
L = 2.2uH
200 400 600 800 1000 1200
LOAD CURRENT (mA)
RDS(ON) vs Input Voltage
0.5
0.4
MAIN SWITH
0.3
0.2
0.1 SYNCHRONOUS SWITCH
0.0
01234567
INPUT VOLTAGE (V)
RDS(ON) vs Temperature
0.38
0.36 VIN = 3.6V
0.34
0.32
0.30
P_RDS(ON)
0.28
0.26
0.24
0.22
0.20
N_RDS(ON)
0.18
-45 -30 -15 0 15 30 45 60 75 90
Temperature (C)
Ver.1.3
Free Datasheet http://www.Datasheet4U.com
5 Page 
APSemi
ESR and high ripple current. The output ripple
VOUT is determined by:
ΔVOUT
≤
VOUT × (VIN − VOUT
VIN × f OSC × L
)
×
⎜⎜⎝⎛
ESR
+
8
×
f
1
osc
×
C3
⎟⎟⎠⎞
Package Description
APS1006
Note: Package outline exclusive of mold flash and metal burr.
Analog Power Semiconductor
11 of 12
Ver.1.3
Free Datasheet http://www.Datasheet4U.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet APS1006.PDF ] | |
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