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参数资料
型号： PQ1CX12H2ZP
厂商： SHARP ELECTRONICS CORP
元件分类： 稳压器
英文描述： 2.5 A SWITCHING REGULATOR, PDSO8
封装： SO-8
文件页数： 1/1页
文件大小： 106K
代理商： PQ1CX12H2ZP
Boot Strap System Chopper Regulator
Under
Development
High efficiency:TYP 87 %
(Compare to conventional model:5 % up)
Low dissipation current :IQS=MAX 7mA
(Compare to conventional model:56% down)
Compact package:SOP8 -pin(Outline dimension:5.2 ×6.2×1.5 mm)
Compare to SC -63 package (Mounting area):49 % down
Compare to TO -263 package (Mounting area):77 % down
Features
Expansion of Chopper Regulator
Specifications
Outline Dimensions
Line-up of Chopper Regulator
1
2
3
4
5
[PQ1CX12H2ZP]
Parameter
Symbol Characteristics
Conditions
Input voltage
VIN
MAX 20 V
Output saturation voltage
VSAT
TYP 0.3 V
ISW=2.0 A
Switching current
ISW
MAX 2.5 A
Output OFF -state dissipation current
IQS
MAX 7 mA
Stand -by current
ISD
MAX 400
A
Reference voltage
Vref
TYP 1.26 V
Oscillation frequency
fOSC
TYP 150 kHz
Efficiency
η
TYP 87%
Operating temperature
Topr
-30 to +85
°C
VIN=12V,V O=5V,IO=2A
VIN=20 V
5.2
4.4
1.5
6.2
Unit:mm
S mark
1.25
VIN
VB
NC
ON/OFF
Vadj
COM
VO
Step down output
/ Reverse output
TO-220
3.5A
70kHz
PQ1CG2032FZ/RZ
TO-263
3.5A
150kHz
PQ1CY1032ZP/ZZ
SC-63
0.8A
300kHz
Package SW current Oscillation frequency
300kHz
PQ1CG38M2FZ/RZ
150kHz
PQ1CG3032FZ/RZ
1.5A
100kHz
PQ1CG21H2FZ/RZ
0.8A
100kHz
PQ1CZ21H2ZP/ZZ
1.5A
PQ1CZ38M2ZP/ZZ
300kHz
PQ1CG41H2FZ/RZ
300kHz
PQ1CZ41H2ZP/ZZ
SOP8 -pin
2.5A
150kHz
PQ1CX12H2ZP
TYP 87% (12V
→ 5V,2A)
TYP 82% (12V
→ 5V,2A)
Efficiency
Boot strap system
General purpose type
System
SOP8 -pin
TO-263type 5 -pin
Package
5.2
×6.2×1.5 mm
10.6
×13.7×3.5 mm
Outline dimension
PQ1CX12H2ZP
PQ1CY1032ZP/ZZ
Model No.
4.5 to 40 V
3.5 A
TYP 75% (5V
→3.3V,2A)
4.5 to 20 V
Input voltage
2.5 A
SW current(MAX)
TYP 85% (5V
→3.3V,2A)
TYP 87% (12V
→ 5V,2A)
TYP 82% (12V
→ 5V,2A)
Efficiency
Boot strap system
General purpose type
System
SOP8 -pin
TO-263type 5 -pin
Package
5.2
×6.2×1.5 mm
10.6
×13.7×3.5 mm
Outline dimension
PQ1CX12H2ZP
PQ1CY1032ZP/ZZ
Model No.
4.5 to 40 V
3.5 A
TYP 75% (5V
→3.3V,2A)
4.5 to 20 V
Input voltage
2.5 A
SW current(MAX)
TYP 85% (5V
→3.3V,2A)
High efficiency
Compact package
6
7
8
1
2
3
4
5
6
7
8
■
Block Diagram
ON/OFF
circuit
Voltage
regulator
Soft
Start
-
+
Oscill
ator
fo Conversion
circuit
Q
R
S
+
-
Over
Heat
Detection
circuit
Over
current
detection
circuit
Drive
Circuit
F/F
Comparator
AMP
Vref
VIN
VB
Vo
ON/OFF
Oadj
COM
■
Application Circuit
VIN
GND
VOUT
CIN
CO
D
L
R1
R2
VC
(ON/OFF)
Chopper
regulator
Boot strap
condenser
VIN=5V
Vo=3.3V
Io=2A
Vo
VB
Oadj
COM
·
High Efficiency 82% against conventional model
---> The method 87%(at VIN=12V- Vo=5V)
VCE
VBE
VIN
VCE
driver
VIN
Conventional (general purpose)
Bootstrap method
Driver power supply and output transistor
current are supplied from the same power
supply.
Driver power and output transistor current is
supplied from the separate power supply
Output salutation voltage:
Large (VBE +VCE = over 1V)
Output saturation voltage small
(V
CE=0.3)
VO
Supply from same voltage
as input voltage
To supply from higher voltage than
input voltage Charged to bootstrap capacitor
Output salutation voltage:
Large : over 1V
Output saturation voltage Low : 0.3Ｖ
C
driver
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
Reduction of
switching loss
High efficiency
■
Feature of Bootstrap Method Chopper Regulator
·
Efficiency improvement at low input
Conventional efficiency 75%-
85% (VIN=5V
VO =3.3V)
Drastic improvement of efficiencyesp in dropper application below 5V
VO
相关PDF资料
PDF描述
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相关代理商/技术参数
参数描述
PQ1CX12H2ZPQ 功能描述:开关变换器、稳压器与控制器 2.5A 150KHz Bootstrap RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel
PQ1CX22H2ZPQ 制造商:SHARP 制造商全称:Sharp Electrionic Components 功能描述:Low Output Bootstrap system Chopper Regulator
PQ1CY1032Z 制造商:SHARP 制造商全称:Sharp Electrionic Components 功能描述:TO-263 Surface Mount Type Chopper Regulator
PQ1CY1032Z_1 制造商:SHARP 制造商全称:Sharp Electrionic Components 功能描述:TO-263 Surface Mount Type Chopper Regulator
PQ1CY1032ZP 制造商:Sharp Microelectronics Corporation 功能描述:Swithed-Mode Power Supply Controller, Voltage Mode Type, 5 Pin, Plastic, SIP
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