参数资料
型号: ADP2325ACPZ-R7
厂商: Analog Devices Inc
文件页数: 4/32页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 32LFCSP
标准包装: 1
PWM 型: 电流模式
输出数: 2
频率 - 最大: 1.2MHz
占空比: 90%
电源电压: 4.5 V ~ 20 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 32-WFQFN 裸露焊盘,CSP
包装: 标准包装
其它名称: ADP2325ACPZ-R7DKR

ADP2325
SPECIFICATIONS
PVIN1 = PVIN2 = 12 V at T J = ?40°C to +125°C, unless otherwise noted.
Table 1.
Data Sheet
Parameters
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
POWER INPUT (PVINx PINS)
Power Input Voltage Range
V PVIN
4.5
20
V
Quiescent Current (PVIN1 + PVIN2)
Shutdown Current (PVIN1 + PVIN2)
I Q
I SHDN
MODE = GND, no switching
EN1 = EN2 = GND
3
30
5
40
mA
μA
PVINx Undervoltage Lockout Threshold
UVLO
PVINx Rising
4.2
4.4
V
PVINx Falling
3.5
3.7
V
FEEDBACK (FBx PINS)
FBx Regulation Voltage 1
FBx Bias Current
V FB
I FB
PVINx = 4.5 V to 20 V
0.594
0.6
0.01
0.606
0.1
V
μA
ERROR AMPLIFIER (COMPx PINS)
Transconductance
Error Amplifier Source Current
Error Amplifier Sink Current
g m
I SOURCE
I SINK
370
40
45
500
65
65
630
90
85
μS
μA
μA
INTERNAL REGULATOR (INTVCC PIN)
INTVCC Voltage
Dropout Voltage
Regulator Current Limit
I INTVCC = 30 mA
4.75
80
5
300
100
5.25
120
V
mV
mA
SWITCH NODE (SWx PINS)
High-Side On Resistance 2
V BST to V SW = 5 V
48
80
High-Side Peak Current Limit
R ILIM = floating, V BST to V SW = 5 V
R ILIM = 47 kΩ, V BST to V SW = 5 V
6.4
3.4
8
4.8
9.6
6.2
A
A
Low-Side Negative Current-Limit Threshold
Voltage 3
50
mV
SWx Minimum On Time 3
SWx Minimum Off Time 3
t MIN_ON
t MIN_OFF
130
150
ns
ns
LOW-SIDE DRIVER (DLx PINS)
Rising Time 3
Falling Time 3
Sourcing Resistor
Sinking Resistor
t R
t F
C DL = 2.2 nF, see Figure 23
C DL = 2.2 nF, see Figure 26
20
10
4
1.4
6
3
ns
ns
Ω
Ω
OSCILLATOR (RT PIN)
PWM Switching Frequency
f SW
R OSC = 100 kΩ
510
600
690
kHz
PWM Frequency Range
250
1200
kHz
SYNCHRONIZATION (SYNC PIN)
SYNC Input
SYNC configured as input
Synchronization Range
300
1200
kHz
Minimum On Pulse Width
Minimum Off Pulse Width
High Threshold
Low Threshold
SYNC Output
SYNC configured as output
100
100
1.3
0.4
ns
ns
V
V
Frequency on SYNC Pin
Positive Pulse Time
f CLKOUT
100
f SW
kHz
ns
SOFT START (SSx PINS)
SSx Pin Source Current
I SS
2.5
3.5
4.5
μA
Rev. A | Page 4 of 32
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