XCM526 Datasheet, PDF (3/28 Pages) Torex Semiconductor – 3A, 16VDriver Transistor Built-In Step-Down DC/DC Converter

˙PRODUCT CLASSIFICATION
˔Ordering Information
XCM526Aᶃᶄᶅᶆᶇôᶈ^ï*1ð: PWM control
XCM526Bᶃᶄᶅᶆᶇôᶈ^ï*1ð: PWM/PFM automatic switching control
DESIGNATOR
ᶃ
ITEM
Type
SYMBOL
C
D
DESCRIPTION
Soft-start internally fixed
Soft-start externally set
ᶄ
Output Voltage
9
FB Standard Voltage 0.9Vʶ1.5%
ᶅ
ᶆ⑤-⑥^(*1)
Oscillation Frequency ^(*2)
Package (Order Unit)
5
A
DR-G
500kHz
1.0MHz
USP-12B01 (3,000/Reel)
(*1) The XCM526 series is Halogen and Antimony free as well as being fully RoHS compliant.
(*2) For the 300kHz type is semi-custom product. Please contact your local Torex sales office or representative.
XCM526
Series
˙BLOCK DIAGRAMS
˔XCM526xC Series
ç ç ç ç ç ç ç ç ç ˔XCM526xD Series
VIN
FB
Under Voltage
Lock Out
Short Circuit
Protection
CE
VREF
0.9V
-
Err Amp
+
OE
Soft Start
(internal)
CE
Chip Enable
Each circuit
U.V.L.O
MaxDutyLimit
Protection
Buffer
EXT/
-
PWM
Comparator
+
PWM/PFM Control LOGIC
OSC Enable
RS Latch
R
S
Q
LOGIC
Ramｐ
Wave
Each circuit
OSC
PWM Wave
(XC9221series)
(XA9221series)
Frequency :
1 MHz , 500 kHz , 300 kHz
VSS
VIN
FB
CE
Under Voltage
Lock Out
Short Circuit
Protection
CE
VREF
0.9V
-
Err Amp
+
OE
Soft Start
(internal)
Chip Enable
Each circuit
U.V.L.O
MaxDutyLimit
Protection
Buffer
EXT/
-
PWM
Comparator
+
PWM/PFM Control LOGIC
OSC Enable
RS Latch
R
S
Q
LOGIC
Ramｐ
Wave
Each circuit
PWM Wave
OSC
(XC9221series)
(XA9221series)
Frequency :
1 MHz , 500 kHz , 300 kHz
VSS
GATE
SOURCE
DRAIN
GATE
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
SOURCE
DRAIN
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