553
XC6367_6368 ETR0401_001.doc
◆
Input Voltage Range
insubstantial
: 0.9~10.0V ◆Output Voltage Range : 1.5~6.5V(±2.5%)
◆Oscillator Frequency : 300kHz(±15%)
◆PWM/PFM Switching Control (XC6368) ◆High Efficiency : 84% (TYP .) ◆SOT-25 Package
■GENERAL DESCRIPTION The XC6367/68 ries are multi-functional step-up DC/DC converter controllers with built-in high speed, low ON resistance drivers.
Large output currents are possible using an externally connected transistor, coil, diode and capacitor.
Output voltage is lectable in 100mV increments within a range of 1.5V ~ 6.5V (±2.5%). For output voltages outside this range, we recommend FB version, which has a 1.0V internal reference voltage. Using the FB version, the required output voltage can be t-up using 2 external resistors.
With a 300kHz oscillation frequency, the size of the external components can be reduced.
Control switches from PWM to PFM during light loads with the XC6368 (PWM/PFM switchable) and the ries is highly efficient from light loads to large output currents. Soft start time of XC6367/68A,
B, and C ries is internally t to 10mc and XC6367/68C, D, and F ries regulate soft-start time by connecting resistors and capacitors externally.
During stand-by (CE pin "Low"), supply current is reduced to less than 0.5μA.
■APPLICATIONS
●Electronic information organizers ●Palmtops
scau●Cellular and portable phones ●Portable audio systems
●Various multi-function power supplies
■TYPICAL APPLICATION CIRCUIT
■ TYPICAL PERFORMANCE
CHARACTERISTICS
星期二英语
■FEATURES
Input Voltage Range
: 0.9V ~ 10V
Operating Voltage Range : 2.0V ~ 10V
400的公办二本Output voltage Range : 1.5V ~ 6.5V programmable in 100mV increments (±2.5%) Oscillation Frequency : 300kHz, 100kHz (±15%)
Custom products for 180kHz, 500kHz
Output Current : More than 200mA (V IN =1.8V, V OUT =3.3V) High Efficiency : 84% (TYP .)
Stand-by capability : ISTB =0.5μA (MAX.)
Selection
: Soft-start t-up external
Output voltage t-up internal(V OUT )Output voltage t-up external(FB) Package : SOT-25
☆GO-Compatible
554
XC6367/6368 Series
PIN NUMBER XC6367/XC6368 A, B, C, D
E, F PIN NAME
FUNCTION
5
5
EXT
: External Transistor Connection 2 - V DD
: Supply Voltage Input
4 4 GND : Ground
3 1 CE
: Chip Enable
(C, D, F Types: Soft Start External Set-Up, Soft Start Capacitor Connected) 1 2
V OUT
(FB)
:
Output Voltage Monitor
(E, F Types: Output Voltage Monitor, Power Supply) (B, D Types: Output Voltage External Set-up)
■PIN CONFIGURATION
■PIN ASSIGNMENT
■PRODUCT CLASSIFICATION
●Selection Guide
（
）
XC6367A,XC6368A XC6367E,XC6368E XC6367B,XC6368B
XC6367C,XC6368C XC6367F,XC6368F XC6367D,XC6368D
555
XC6367/6368
Series
DESIGNATOR
DESCRIPTION
SYMBOL
DESCRIPTION
A : V OUT type: V OUT internally t-up, Soft-start internally t-up B
: FB type: V OUT externally t-up, Soft-start internally t-up C : V OUT type: V OUT internally t-up, Soft-start externally t-up D
: FB type: V OUT externally t-up, Soft-start externally t-up
E : V OUT type: V OUT internally t-up, Soft-start internally t-up ①
Type of DC/DC Converter
F : V OUT type: V OUT internally t-up, Soft-start externally t-up 15 ~ 65
: V OUT type: 3.0V output → ②=3, ③=0
② ③
Output Voltage
10
: FB type (B, D types): 10 fixed →
②=1, ③=0 fixed 3 : 300kHz
1 : 100kHz
2 : 180kHz (Custom) ④
Oscillation Frequency
5
: 500kHz (Custom) ⑤ Package M : SOT-25 (SOT-23-5)
R : Embosd tape, standard feed ⑥
Device Orientation
L
: Embosd tape, rever feed
■PACKAGING INFORMATION
●Ordering Information
■PRODUCT CLASSIFICATION (Continued)
XC6367①②③④⑤⑥ PWM Control
XC6368①②③④⑤⑥ PWM/PFM Switching Control
556
XC6367/6368
Series披荆斩棘
MARK
PRODUCT SERIES
MARK
PRODUCT SERIES
A XC6367A K XC6368A
B XC6367B L XC6368B
C XC6367C M XC6368C
D XC6367D N XC6368D
E XC6367E P XC6368E
F XC6367F R XC6368F
OSCILLATION FREQUENCY (kHz)
OUTPUT VOLTAGE (V)
100
180 300
500
1 B 1 1 B
2 C 2 2 C
3 D 3 3 D
4 E 4 4 E
5 F 5 5 F
6 H 6 6 H
FOR CUSTOM PRODUCT S OSCILLATION FREQUENCY (kHz)
OUTPUT VOLTAGE (V)
100
180 300
500
0 0 0 A A
1 1 1 B B
2 2 2 C C
3 3 3 D D
4 4 4 E E
5 5 5 F F
6 6 6 H H
7 7 7 K K
8 8 8 L L
9 9 9 M M
■MARKING RULE
●XC6367/6368 Series ①Reprents product ries
跟我学英语视频教程②Reprents integer of output voltage and oscillation frequency
③Reprents decimal number of output voltage and oscillation frequency ④Reprents production lot number
0 to 9, A to Z repeated (G, I, J, O, Q, W excepted)
SOT-25 (TOP VIEW)
557
XC6367/6368
Series
■BLOCK DIAGRAMS
GND
EXT V DD
V OUT
CE
XC6367, XC6368 Series A, C, E,F types (V OUT )
Note :Connecting V OUT and V DD internally with E F types.
GND
EXT
V DD
FB
CE
XC6367, XC6368 Series B,D types (FB)
GND
558
XC6367/6368 Series
PARAMETER SYMBOL RATINGS UNITS V DD Pin Voltage V DD -0.3 ~ +12.0 V V OUT Pin Voltage V OUT -0.3 ~ +12.0 V FB Pin Voltage V FB -0.3 ~ +12.0 V CE Pin Voltage V CE -0.3 ~ +12.0 Vcentre
EXT Pin Voltage V EXT -0.3 ~ V DD +0.3 V EXT Pin Current I EXT ±100
mA Power Dissipation Pd 150 mW Operating Temperature Range Topr -30 ~ +80 ℃
Storage Temperature Range Tstg -40 ~ +125 ℃
PARAMETER
绿光教育SYMBOL CONDITIONS MIN. TYP . MAX.UNITS Output Voltage V OUT 3.218 3.300 3.383V Supply Voltage (* 1) V DD 2.0 - 10.0V Maximum Input Voltage V IN 10.0 - - V Oscillation Start Voltage 1 V ST1 Tr: 2SD1628, I OUT =
perceive1.0mA - - 0.9 V Oscillation Start Voltage 2 V ST2 V OUT =CE: Apply voltage - - 0.8 V Oscillation Hold Voltage
V HLD Tr: U of a 2SX1628, I OUT =
1.0mA - - 0.7 V Supply Current 1 I DD1 V OUT =CE=tting output voltage x 0.95 - 130 200 μA Supply Current 2 I DD2 V OUT =CE=tting output voltage + 0.5V - 20 35 μA Stand-by Current I STB V OUT =tting output voltage x 0.95, CE=0V - - 0.5 μA Oscillator Frequency FOSC Same as I DD1 255 300 345 kHz Maximum Duty Ratio MAXDTY Same as I DD1 78 85 92 % PFM Duty Ratio (* 3) PFMDTY I OUT =
0mA 15 25 35 % CE "High" Voltage V CEH V OUT =tting output voltage x0.95 0.65 - - V CE "Low
" Voltage
V CEL V OUT =tting output voltage x0.95 - - 0.20V EXT "High" ON Resistance R EXTH Same as I DD1, VEXT=V OUT -0.4V - 29 43 Ω EXT "Low" ON Resistance
R EXTL Same as I DD1, V EXT =
0.4V - 19 27 Ω Efficiency (* 2) EFFI - 84 - % Soft-Start Time
T SS 5 10 20 mc
■ABSOLUTE MAXIMUM RATINGS
增长率英文
Ta = 25℃■ELECTRICAL CHARACTERISTICS
XC6367A333MR, XC6368A333MR Conditions: Unless otherwi stated, connect V DD to V OUT ; V IN =tting output voltage x 0.6, I OUT =130mA
NOTE:
* 1: When taking V DD from another power source plea ensure that V DD = 2.0V or more.
Oscillation will occur with a value of V DD = 0.8V or more, but with a value of V DD = 2.0V or more, output voltage and oscillation frequency will be stable.
* 2: EFFI = {[(output voltage) x (output current)]÷[(input voltage) x (input current)] x 100
* 3: Applies to the XC6368 ries only (duty ratio when control changes to PFM).
V OUT =3.3V, FOSC=300kHz, Ta=25℃
*Voltage is all ground standardized.
