XDL601/XDL602
Series
■GENERAL
DESCRIPTION
ETR44001-001
HiSAT-COT
®
Control, 1.5A Inductor Built-in Step-Down
“micro
DC/DC” Converters
☆AEC-Q100
Grade2
☆Green
Operation Compatible
The XDL601/XDL602 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control
IC in one tiny package. An internal coil simplifies the circuit and enables minimization of noise and other operational trouble
due to the circuit wiring.
The XDL601/XDL602 series uses synchronous rectification at an operating frequency of 3.0MHz. The XDL601/XDL602
series uses HiSAT-COT
(*)
synchronous rectification. HiSAT-COT+PWM control (XDL601) or HiSAT-COT+automatic
PWM/PFM switching control (XDL602) can be selected.
XDL601/XD602 series employ the wettable flank plated packaging. This provides a visual indicator of solderability and lowers
the inspection time.
(*)
HiSAT-COT is a proprietary high-speed transient response technology for DC/DC converter which was developed by Torex.
It is Ideal for the LSI's that require high precision and high stability power supply voltage.
■APPLICATIONS
●Car
Navigation System
●Drive
Recoder
●Car
Audio
●Car-mounted
camera
●ETC
/ Other automotive accessories
■FEATURES
Input Voltage
Output Voltage
Oscillation Frequency
Output Current
Efficiency
Control Methods
:
:
:
:
:
:
2.5V ~ 5.5V
0.8V,1.0V,1.1V,1.2V,1.25V,1.3V,1.35V,
1.5V,1.8V,2.5V,3.0V,3.3V
3.0MHz
1.5A
93% (V
IN
=5.0V,V
OUT
=3.3V/500mA)
HiSAT-COT
100% Duty Cycle
HiSAT-COT+PWM (XDL601)
HiSAT-COT+PWM/PFM (XDL602)
Thermal Shut Down
Current Limit Circuit (Drop)
Short Circuit Protection (Latch)
Soft-start Circuit Built-in
UVLO
C
L
Discharge
Low ESR Ceramic Capacitor
-40℃ ~ +105℃
DFN3625-11B (with Wettable Flanks)
EU RoHS Compliant, Pb Free
Circuit Protection
:
Functions
:
Output Capacitor
OperatingAmbient Temperature
Package
Environmental Friendly
:
:
:
:
■TYPICAL
APPLICATION CIRCUIT
■
TYPICAL PERFORMANCE
CHARACTERISTICS
XDL601/XDL602 (V
OUT
=3.3V)
L1
V
OUT
Lx
V
IN
CE
PGND
V
IN
L2
V
OUT
AGND
C
L
C
IN
1/21
XDL601/XDL602 Series
■BLOCK
DIAGRAM
1) XDL601/XDL602 Series Type A
Inductor
L2
L1
V
OUT
R1
C
FB
Phase
Compensation
R2
Error
Amp.
Comparator
S
Q
Vref with
Soft Start
R
Logic
Synch
Buffer
Drive
High Side
Current Limit
V
IN
AGND
Lx
CE
CE Control Logic,
UVLO
Thermal Shutdown
Minimum On
Time
Generator
V
IN
V
OUT
PWM / PFM
Selector
PGND
* The XDL601 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally.
The XDL602 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM
automatic switching” internally.
Diodes inside the circuit are an ESD protection diode and a parasitic diode.
2) XDL601/XDL602 Series Type B
Inductor
L2
L1
V
OUT
R1
C
FB
Phase
Compensation
R2
Error
Amp.
Comparator
Short
Protection
High Side
Current Limit
V
IN
AGND
Vref with
Soft Start
S
Q
R
Logic
Synch
Buffer
Drive
Lx
CE
CE Control Logic
,
UVLO
Thermal Shutdown
Minimum On
Time
Generator
V
IN
V
OUT
PWM / PFM
Selector
PGND
* The XDL601 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally.
The XDL602 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM
automatic switching” internally.
Diodes inside the circuit are an ESD protection diode and a parasitic diode.
2/21
XDL601/XDL602
Series
■PRODUCT
CLASSIFICATION
●Ordering
Information
XDL601①②③④⑤⑥-⑦
XDL602①②③④⑤⑥-⑦
DESIGNATOR
①
PWM
PWM/PFM Automatic switching control
SYMBOL
DESCRIPTION
A
B
Refer to Selection Guide
Output Voltage options
e.g.)1.2V →
②=1, ③=2
1.25V →
②=1, ③=C
0.05V Increments:
0.25=C,0.35=D
3.0MHz
DFN3625-11B (2,000pcs/Reel)
(*3)
ITEM
Type
②③
Output Voltage
08,10,11,12,1C
13,1D,15,18
25,30,33
(*1)
④
⑤⑥-⑦
(*2)
(*1)
Contact
Oscillation Frequency
Package
(Order Unit)
3
82-Q
Torex sales representatives for other voltages. Product selections from 0.8V to 3.6V are available.
(*2)
The “-Q” suffix denotes “AEC-Q100” and “Halogen and Antimony free” as well as being fully EU RoHS compliant.
(*3)
The XDL601/XDL602 reels are shipped in a moisture-proof packing.
●Selection
Guide
TYPE
A
B
OUTPUT
VOLTAGE
Fixed
Fixed
C
L
AUTO-
DISCHARGE
No
Yes
LATCH or
SHORT
PROTECTION
No
Yes
UVLO
Yes
Yes
CHIP
ENABLE
Yes
Yes
CURRENT
LIMIT
Yes
Yes
SOFT-
START
Fixed
Fixed
THERMAL
SHUTDOWN
Yes
Yes
3/21
XDL601/XDL602 Series
■PIN
CONFIGURATION
DFN3625-11B
BOTTOM VIEW
* The dissipation pad, No.9 pin of the DFN3625-11B package, should be soldered in recommended
mount pattern and metal masking so as to enhance mounting strength and heat release.
The mount pattern for the dissipation pad should be connected to the GND pin (No.4, 5 and 7).
■PIN
ASSIGNMENT
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
11
PIN NAME
V
IN
NC
Lx
PGND
PGND
V
OUT
AGND
CE
PGND
L1
L2
FUNCTIONS
Power Input
No Connection
Switching Output
Power Ground
Power Ground
Fixed Output Voltage PIN
Analog Ground
Chip Enable
Power Ground
Inductor Electrodes
Inductor Electrodes
* This 2-pin NC terminal is not connected to an IC chip.
■FUNCTION
TABLE
PIN NAME
CE
SIGNAL
Low
High
STATUS
Stand-by
Active
* Please do not leave the CE pin open.
4/21
XDL601/XDL602
Series
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
V
IN
Pin Voltage
L
X
Pin Voltage
V
OUT
Pin Voltage
CE Pin Voltage
Power Dissipation
(Ta=25℃)
DFN3625-11B
SYMBOL
V
IN
V
Lx
V
out
V
CE
Pd
Topr
T
stg
RATINGS
-0.3 ~ +6.2
-0.3 ~ V
IN
+ 0.3 or +6.2
(*1)
-0.3 ~ V
IN
+ 0.3 or +4.0
(*2)
-0.3 ~ +6.2
2100 (JESD51-7 board)
(*3)
-40 ~ +105
-55 ~ +125
UNITS
V
V
V
V
mW
℃
℃
Operating Ambient Temperature
Storage Temperature
All voltages are described based on the GND (AGND and PGND) pin.
(*1)
(*2)
(*3)
The maximum value should be either V
IN
+0.3V or +6.2V in the lowest voltage
The maximum value should be either V
IN
+0.3V or +4.0V in the lowest voltage
The power dissipation figure shown is PCB mounted and is for reference only.
The mounting condition is please refer to PACKAGING INFORMATION.
5/21
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