参数资料
| 型号： | NCP5252MNTXG |
| 厂商： | ON Semiconductor |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2A 16QFN |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 5 V |
| 输入电压： | 4.5 V ~ 13.2 V |
| 频率 - 开关： | 333kHz ~ 1MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 16-QFN（3x3） |
| 其它名称： | NCP5252MNTXGOSDKR |
NCP5252
ELECTRICAL CHARACTERISTICS (V CC = 4.5 to 13.2 V, T A = ? 40 ° C to 85 ° C, unless other noted)
Characteristics
Symbol
Test Conditions
Min
Typ
Max
Unit
SUPPLY VOLTAGE
Input Voltage
POR Threshold for Internal Reset
Logic
V CC
V CC_POR
4.5
3.0
13.2
3.7
V
V
SUPPLY CURRENT
V CC Quiescent Supply Current
I CC_FPWM
EN/SKIP = 5 V, V FB = 1 V (No switching),
V CC = 4.5 V to 13.2 V
1.0
2.5
mA
V CC Shutdown Current
BST Quiescent Supply Current
BST Shut Down Current
VCC Input Current
I VCC_SD
I BST_FPWM
I BST_SD
IV CC
EN/SKIP = 0 V
EN/SKIP = H, V FB = 1 V, V BST = 5 V
EN/SKIP = L, V FB = 1 V, V BST = 5 V
FREQ_SET = AGND. FREQ = 333 kHz
18
10
0.3
10
m A
mA
m A
mA
LDO REGULATOR
V5 Regulator Voltage
V5 Rise Threshold
V5 UVLO Hysteresis
V5
V5_th+
V5 HYS
V CC > 6 V, I V5 = 5 mA
Wake Up
4.85
4.1
300
5.0
4.3
400
5.15
4.45
500
V
V
mV
V5 Loading
V5 Current Limit
V5 LOAD
I LIMIT_V5
20
3.0
mA
mA
Drop ? out Voltage (V CC ? V5)
V DR
Io = 5 mA, T A = 25 ° C, V CC = 4.5 V, FB = 1V
200
mV
POWER GOOD
Power Good High Threshold
Power Good High Hysteresis
Power Good Low Threshold
Power Good Low Hysteresis
VPGH
VPGH_HYS
VPGL
VPGL_HYS
PGOOD in from higher Vo
(PGOOD goes high)
PGOOD high hysteresis
(PGOOD goes low)
PGOOD in from lower Vo
(PGOOD goes high)
PGOOD low hysteresis
(PGOOD goes low)
100
75
110
5
85
? 5
120
95
%
%
%
%
Power Good High Delay
Power Good Low Delay
Td_PGH
Td_PGL
150
1.5
m s
m s
Output Overvoltage Rising
Threshold
Over voltage Fault Propagation
Delay
Output Undervoltage Trip
Threshold
OVPth+
OVPTblk
UVPth
OVPth+ = VPGH + VPGH_SYS
FB Forced 2% above trip threshold
UVPth = VPGL + VPGL_HYS
105
70
115
1.5
80
125
90
%
m s
%
Output Undervoltage Protection
Blanking Time
UVPTblk
8.0
m s
REFERENCE OUTPUT
Internal Reference Voltage
Output Voltage Accuracy (Note 1)
V REF
25 ° C
? 40 ° C to 85 ° C
V IN = 12 V, Io = 0 A to 2 A
0.594
0.591
? 1
0.6
0.6
0
0.606
0.609
+1
V
%
Line Regulation (Note 1)
V IN = 5 to 12 V, I OUT = 500 mA
0.1
%/V
OSCILLATOR
Operation Frequency
F SW
FREQ_SET = V5
FREQ_SET = NC
FREQ_SET = AGND
900
450
300
1000
500
333
1100
550
366
kHz
kHz
kHz
INTERNAL SOFT ? START
Soft ? Start Time
t SS
Digital Soft ? Start (V OUT from 10% to 90%)
800
m s
1. Guaranteed by design, not tested in production.
2. Test mode disables the T on /T off min.
http://onsemi.com
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