NCP562, NCP56380 mA CMOS Low Iq Low-Dropout Voltage Regulator
clara李成敏This series of fixed output low–dropout linear regulators are designed for handheld communication equipment and portable battery powered applications which require low quiescent. This series features an ultra–low quiescent current of 2.5m A. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, resistors for setting output voltage, current limit, and temperature limit protection circuits. The NCP562 series provides an enable pin for ON/OFF control.
The NCP562 has been designed to be used with low cost ceramic capacitors and requires a minimum output capacitor of 0.1 m F. The device is housed in the micro–miniature SC82–AB surface mount package. Standard voltage versions are 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.3,and 5.0 V . Other voltages are available in 100 mV steps.
Features
•Low Quiescent Current of 2.5 m A Typical •Low Output V oltage Option
•Output V oltage Accuracy of 2.0%•Temperature Range of –40°C to 85°C •
NCP562 Provides an Enable Pin
uffieTypical Applications
•Battery Powered Instruments •Hand–Held Instruments •Camcorders and Cameras
Figure 1. NCP562 Typical Application Diagram
This device contains 28 active transistors
Figure 2. NCP563 Typical Application Diagram
This device contains 28 active transistors
See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet.
ORDERING INFORMATION
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MAXIMUM RATINGS
Human Body Model 2000 V per MIL–STD–883, Method 3015 Machine Model Method 200 V
2.Latch up capability (85°C) "100 mA DC with trigger voltage.
ELECTRICAL CHARACTERISTICS
(V in = V out(nom.) + 1.0 V, V enable = V in, C in = 1.0 m F, C out = 1.0 m F, T J = 25°C, unless otherwise noted.)
董文华个人资料PD+T J(max)*T A
R q JA
4.Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
0I Q , Q U I E S C E N T  C U R R E N T  (m A )
求求你伤感对白Figure 7. Dropout Voltage versus Temperature Figure 8. Turn–On Response (NCP562 ONLY)
V I N  – V O U T , D R O P O U T  V O L T A G E  (m V )
125
25
–50
T, TEMPERATURE (°C)
300400
250
200
fuxinbo100
50
t, TIME (m s)
V O U T , O U T P U T  V O L T A G E  (V )150
–25
50
75
100
250
200150
10050300
350
1000
1
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0.1
0.01
f, FREQUENCY (kHz)
10
100
–16O U T P U T  V O L T A G E D E V I A T I O N  (V )
–0.51043V I N , I N P U T V O L T A G E  (V )
0.55t, TIME (m s)
O U T P U T  V O L T A G E D E V I A T I O N  (m V )
I O U T , O U T P U T C U R R E N T  (m A )
Figure 11. Load Transient Response Figure 12. Output Voltage Noise