pq1cx12h2zp Sharp Microelectronics of the Americas, pq1cx12h2zp Datasheet
pq1cx12h2zp
Manufacturer Part Number
pq1cx12h2zp
Description
Boot Strap System Chopper Regulator
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
1.PQ1CX12H2ZP.pdf
(1 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
pq1cx12h2zpQ
Manufacturer:
SHARP
Quantity:
20 000
■ Block Diagram
GND
■ Application Circuit
V
Output OFF -state dissipation current
Development
• High efficiency:TYP 87 %
• Low dissipation current :I
• Compact package:SOP8 -pin(Outline dimension:5.2 × 6.2 × 1.5 mm)
IN
(Compare to conventional model:5 % up)
(Compare to conventional model:56% down)
Features
Features
Expansion of Chopper Regulator
Expansion of Chopper Regulator
Specifications
Specifications
Compare to SC -63 package (Mounting area):49 % down
Compare to TO -263 package (Mounting area):77 % down
Outline dimension
Outline dimension
SW current(MAX)
SW current(MAX)
V
Output saturation voltage
Under
IN
V
Operating temperature
Input voltage
Input voltage
V
Oscillation frequency
=5V
IN
Model No.
Model No.
B
C
Efficiency
Efficiency
Reference voltage
Package
Package
Switching current
Stand -by current
System
System
IN
Input voltage
Over
current
detection
circuit
Over
Heat
Detection
circuit
(ON/OFF)
Parameter
Efficiency
V
C
Circuit
Drive
Chopper
regulator
F/F
V
QS
B
TYP 82% (12V → 5V,2A)
TYP 82% (12V → 5V,2A)
TYP 75% (5V → 3.3V,2A)
TYP 75% (5V → 3.3V,2A)
COM
General purpose type
=MAX 7mA
General purpose type
Boot strap
condenser
Q
S
PQ1CY1032ZP/ZZ
PQ1CY1032ZP/ZZ
10.6 × 13.7 × 3.5 mm
10.6 × 13.7 × 3.5 mm
TO-263type 5 -pin
TO-263type 5 -pin
Comparator
R
4.5 to 40 V
4.5 to 40 V
COM
Oadj
Vo
Oscill
ator
3.5 A
3.5 A
Symbol Characteristics
D
V
f
T
V
I
V
fo Conversion
circuit
I
I
OSC
SAT
SW
Boot Strap System Chopper Regulator
QS
SD
η
opr
IN
ref
+
-
regulator
ON/OFF
Voltage
circuit
AMP
Soft
Start
L
High efficiency
Compact package
TYP 150 kHz
-30 to +85 ° C
TYP 1.26 V
V
MAX 400 µ A
MAX 7 mA
-
+
TYP 0.3 V
MAX 2.5 A
MAX 20 V
ref
TYP 87%
R2
R1
TYP 87% (12V → 5V,2A)
TYP 87% (12V → 5V,2A)
TYP 85% (5V → 3.3V,2A)
TYP 85% (5V → 3.3V,2A)
Oadj
Vo=3.3V
Boot strap system
Boot strap system
Vo
ON/OFF
5.2 × 6.2 × 1.5 mm
V
PQ1CX12H2ZP
PQ1CX12H2ZP
5.2 × 6.2 × 1.5 mm
I
V
V
Io=2A
SW
IN
IN
IN
C
4.5 to 20 V
4.5 to 20 V
=20 V
=20 V
=12V,V
O
SOP8 -pin
SOP8 -pin
=2.0 A
2.5 A
2.5 A
Conditions
GND
V
OUT
O
=5V,I
■ Feature of Bootstrap Method Chopper Regulator
Driver power supply and output transistor
current are supplied from the same power
supply.
V
O
as input voltage
Supply from same voltage
=2A
IN
Bootstrap capacitor is installed to supply higher controlled vol tage than input voltage to
switching transistor inside.
The higher efficiency is obtained due to the switching transisto r’s saturated voltage become
low by higher controlled voltage than supplied input voltage
Large (VBE +VCE = over 1V)
Conventional (general purpose)
・High Efficiency 82% against conventional model
---> The method 87%(at V
・Efficiency improvement at low input
Conventional efficiency 75% -
Output salutation voltage:
driver
Drastic improvement of efficiency esp in dropper application below 5V
Outline Dimensions
Outline Dimensions
Step down output
/ Reverse output
Line-up of Chopper Regulator
Line-up of Chopper Regulator
Output salutation voltage:
V
BE
Large : over 1V
V
1
8
CE
2
7
5.2
･Reduction of
switching loss
･High efficiency
V
IN
6
3
O
1.25
=12V-
5
TO-220
TO-263
SC-63
SOP8 -pin
4
Package SW current Oscillation frequency
85% (V
Vo=5V)
IN
Driver power and output transistor current is
supplied from the separate power supply
=5V
0.8A
1.5A
3.5A
3.5A
0.8A
1.5A
2.5A
V
IN
To supply from higher voltage than
input voltage Charged to bootstrap capacitor
Output saturation voltage small
Unit:mm
S mark
C
Output saturation voltage Low : 0.3Ｖ
VO =3.3V)
Bootstrap method
[PQ1CX12H2ZP]
300kHz
100kHz
300kHz
70kHz
150kHz
150kHz
300kHz
100kHz
300kHz
150kHz
(V
driver
CE
=0.3)
PQ1CG38M2FZ/RZ
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PQ1CG41H2FZ/RZ
PQ1CG2032FZ/RZ
PQ1CG3032FZ/RZ
PQ1CY1032ZP/ZZ
PQ1CZ38M2ZP/ZZ
PQ1CZ21H2ZP/ZZ
PQ1CZ41H2ZP/ZZ
PQ1CX12H2ZP
PQ1CX12H2ZP
1
2
3
4
5
6
7
8
V
V
V
NC
ON/OFF
V
COM
COM
V
V
CE
IN
B
adj
O
O
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