☆GO-Compatible
◆Synchronous
Step-Down DC/DC
◆High
Efficiency
:92%
◆Low
Ripple Voltage
:10mV
◆Output
Current
:500mA
(VIN=3.0V, VOUT=1.8V)*
◆Oscillation
Frequency
:600kHz, 1.2MHz
◆PWM
Fixed Control
:(XC9215 series)
◆PWM/PFM
Automatic Switching Control :(XC9216 series)
◆Manual
Selection of Switching Control :(XC9217 series)
◆Maximum
Duty Ratio
:100%
◆Ceramic
Capacitor Compatible
◆Ultra
Small Packages
:SOT-25, USP-6B
■APPLICATIONS
●Mobile
phones (PDC, GSM, CDMA, IMT200 etc.)
●Bluetooth
equipment
●PDAs
●Portable
communication modem
●Portable
games
●Cameras
●Digital
cameras
●Cordless
phones
●Notebook
computers
■GENERAL
DESCRIPTION
The XC9215/9216/9217 series is a group of synchronous-rectification
type DC/DC converters with a built-in 0.6Ω P-channel driver transistor
and 0.7Ω N-channel switching transistor, designed to allow the use of
ceramic capacitors. The ICs enable a high efficiency, stable power
supply with an output current of 500mA to be configured using only a
coil and two capacitors connected externally.
Minimum operating voltage is 2.0V. Output voltage is internally
programmable in a range from 0.9V to 4.0V in increments of 100mV
(accuracy:±2.0%).
With the built-in oscillator, oscillation frequency is selectable from
600kHz and 1.2MHz to make available the frequency best suited to
your particular application.
As for operation mode, the XC9215 series is PWM control, the XC9216
series is automatic PWM/PFM switching control and the XC9217 series
can be manually switched between the PWM control mode and the
automatic PWM/PFM switching control mode, allowing fast response,
low ripple and high efficiency over the full range of load (from light load
to high output current conditions).
The soft start and current control functions are internally optimized.
During standby, all circuits are shutdown to reduce current consumption
to as low as 1.0μA or less. With the built-in U.V.L.O. (Under Voltage
Lock Out) function, the internal P channel driver transistor is forced OFF
when input voltage becomes 1.4V or lower. Two types of package,
SOT-25 (250mW) and USP-6B (100 mW), are available.
P-ch Driver Tr. Built-in
:ON resistance 0.6Ω
N-ch
Synchronous Driver Tr. Built-in :ON resistance 0.7Ω
Input Voltage Range
:2.0 ~ 6.0V
Output Voltage Range
:0.9V~4.0V (100mV increments)
High Efficiency
:92% (TYP.)
(VIN=3.0V, VOUT=1.8V,
IOUT=100mA)*
Output current
:500mA
(VIN=3.0V, VOUT=1.8V)*
Oscillation Frequency
:600kHz, 1.2MHz
(Fixed frequency accuracy±15%)
Ultra Small Packages
:SOT-25
USP-6B
Soft-start circuit built-in
Current limiter circuit built-in (constant current & latching)
Low ESR ceramic capacitor compatible
* Performance depends on external components and
wiring on the PCB.
■FEATURES
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●Effciency
vs. Output Current
XC9217A18C
100
L=3.3μH(CDRH3D16), CIN=4.7μF(ceramic), CL=10μF(ceramic), T opr=25℃
■TYPICAL
APPLICATION CIRCUIT
VIN
CIN
(ceramic)
CE/MODE
L
1
2
3
VIN
VSS
CE/
VOUT
MODE
Lx
5
VOUT
(500mA)
CL
(ceramic)
Efficiency:EFFI(%)
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
Output Current:IOUT(mA)
1000
PWM /PFM Automatic Switching Control
PWM Control
VIN=5.0V
VIN=3.6V
VIN=2.7V
4
679
XC9215/9216/9217
Series
■PIN
CONFIGURATION
SOT-25 (TOP VIEW)
USP-6B (BOTTOM VIEW)
* Please short the VSS pin (pin no. 2 and 5) before use.
Please use the circuit without connecting the heat
dissipation pad. If the pad must be connected due to
a problem of heat dissipation or mounting intensity,
connect to the VSS pin (pin no. 5).
■PIN
CONFIGURATION
PIN NUMBER
SOT-25 USP-6B
1
6
2
2, 5
3
4
4
3
5
1
PIN NAME
VIN
VSS
CE / MODE
VOUT
Lx
FUNCTION
Power Input
Ground
Chip Enable / Mode Switch
Output Voltage Sense
Switching Output
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC9215①②③④⑤⑥
XC9216①②③④⑤⑥
XC9217①②③④⑤⑥
DESIGNATOR
PWM fixed control
PWM / PFM automatic switching control
PWM fixed control
PWM / PFM automatic switching, manual switching
SYMBOL
A
B
C
D
09 ~ 40
6
C
M
D
R
L
DESCRIPTION
: CE input logic High Active, CE pin open (Standard)
: CE input logic Low Active, CE pin open (Semi-custom)
: CE input logic High Active, Pull-down resistor built-in (Semi-custom)
:CE input logic Low Active, Pull-up resistor built-in (Semi-custom)
: 100mV increments
e.g. VOUT = 1.5V
→ ②
= 1,
③
= 5
: 600kHz
: 1.2MHz
: SOT-25 (SOT-23-5)
: USP-6B
: Embossed tape, Standard feed
: Embossed tape, Reverse feed
①
DESCRIPTION
Type of DC/DC Converter
Transistor Built-In, Output
Voltage Internally Set
(VOUT Product), Soft Start
Internally Set, Current Limit
700mA
Output voltage
② ③
④
Oscillation Frequency
⑤
Package
⑥
Device Orientation
680
XC9215/9216/9217
Series
■PACKAGING
INFORMATION
●SOT-25
●USP-6B
2.0 + 0.15
(0.45) 0.5+0.1
(0.05)
O
(0.27)
(0.27)
0.005
+0.002
1
1
2
3
6
5
4
1.8+0.15
(0.27)
(
(0.45) (0.45)
(0.125)
45
O
O
45
45
O
45
A
0.45)
A'
O
+0.15
(0.65)
-0.05
0.7+0.03
1
A - A Cross Sectional View
4
5-0.2+0.05
3
2
0.5+0.1 0.5+0.1
1.6+0.15
5
* Pin no. 1 is thicker than other pins.
0.2+0.05
1
1.0+0.1
1
1
.
0.25+0.1
0.25+0.1
1
0.1+0.03
0
1
6
(0.05)
+0.01
-0.005
AAA
AAA
681
XC9215/9216/9217
Series
■MARKING
RULE
●SOT-25
SOT-25 (TOP VIEW)
Mark
①
Represents product series and type of DC/DC converter
MARK
E
F
G
PRODUCT SERIES
XC9215A x x x M x
XC9216A x x x M x
XC9217A x x x M x
* Character inversion used
Mark
②
Represents integer of output voltage and oscillation frequency
MARK
OUTPUT VOLTAGE
0.X
1.X
2.X
3.X
4.X
FOSC=600kHz
(XC92 x x A
②
x 6 M x)
0
1
2
3
4
FOSC=1.2MHz
(XC92 x x A
②
x C M x )
0
1
2
3
4
Mark
③
Represents decimal point of output voltage and oscillation frequency
MARK
OUTPUT VOLTAGE
X.0
X.1
X.2
X.3
X.4
X.5
X.6
X.7
X.8
X.9
FOSC=600kHz
(XC92 x x A x
③
6 M x)
0
1
2
3
4
5
6
7
8
9
FOSC=1.2MHz
(XC92 x x A x
③
C M x )
A
B
C
D
E
F
H
K
L
M
* Output voltage 0.9V ~ 4.0V (100mV increments) are standard products.
Please ask our sales contact for output voltages of 50mV increments (semi-custom products).
Mark
④
Represents production lot number
0 to 9, A to Z, reversed character of 0 to 9 and A to Z repeated (G, I, J, O, Q, W excepted)
682
XC9215/9216/9217
Series
■MARKING
RULE (Continued)
●USP-6B
USP-6B (TOP VIEW)
Mark
①
Represents product series and type of DC/DC converter
MARK
F
B
E
PRODUCT SERIES
XC9215A x x x D x
XC9216A x x x D x
XC9217A x x x D x
* Character inversion used.
Mark
②
Represents type of voltage regulators
MARK
A
PRODUCT SERIES
XC92 x x A x x x D x
CURRENT LIMIT
700mA
Mark
③
Represents integer of output voltage
OUTPUT VOLTAGE
0.X
1.X
2.X
3.X
4.X
MARK
(XC92 x x A
③
x x D x)
0
1
2
3
4
Mark
③
Represents integer of output voltage
OUTPUT VOLTAGE
X.0
X.1
X.2
X.3
X.4
X.5
X.6
X.7
X.8
X.9
MARK
(XC92 x x A
④
x x D x)
0
1
2
3
4
5
6
7
8
9
* Output voltage 0.9V ~ 4.0V (100mV increments) are standard products.
Please ask our sales contact for output voltages of 50mV increments (semi-custom products).
Mark
⑤
Represents oscillation frequency
MARK
6
C
PRODUCT SERIES
XC92 x x A x x 6 D x
XC92 x x A x x C D x
FREQUENCY
600kHz
1.2MHz
Mark
④
Represents production lot number
0 to 9, A to Z, reversed (G, I, J, O, Q, W excepted)
Note: No character inversion used.
683
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