AP2125 BCDSEMI [BCD Semiconductor Manufacturing Limited], AP2125 Datasheet

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AP2125

Manufacturer Part Number
AP2125
Description
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
Manufacturer
BCDSEMI [BCD Semiconductor Manufacturing Limited]
Datasheet

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General Description
The AP2125 series are 300mA, positive voltage regu-
lator ICs fabricated by CMOS process.
Each of these ICs is equipped with a voltage reference,
an error amplifier, a resistor network for setting output
voltage, a chip enable circuit, a current limit circuit and
OTSD (over temperature shut down) circuit to prevent
the IC from over current and over temperature.
The AP2125 series have features of high ripple rejec-
tion, low dropout voltage, low noise, high output volt-
age accuracy and low current consumption which
make them ideal for use in various battery-powered
apparatus.
The AP2125 have 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.15V
and 4.2V fixed voltage versions.
These ICs are available in tiny SC-70-5 and SC-82
packages as well as industry standard SOT-23-3 and
SOT-23-5 packages.
May. 2010 Rev. 1. 4
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
SOT-23-3
Figure 1. Package Types of AP2125
SOT-23-5
1
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Features
Applications
Excellent Ripple Rejection: 70dB Typical (1.8V
Version)
Low Dropout Voltage: 65mV (I
3.3V Version)
Low Standby Current: 0.01µA Typical
Low Quiescent Current: 60µA Typical
Extremely Low Noise: 50µVrms Typical
Maximum Output Current: 300mA (Min.)
High Output Voltage Accuracy:
Compatible with Low ESR Ceramic Capacitor
Excellent Line/Load Regulation
CDMA/GSM Cellular Handsets
Battery-powered Equipments
Laptops, Palmtops, Notebook Computers
Hand-held Instruments
PCMCIA Cards
Portable Information Appliances
SC-70-5
BCD Semiconductor Manufacturing Limited
SC-82
±
2%
Data Sheet
OUT
AP2125
=100mA,

Related parts for AP2125

AP2125 Summary of contents

Page 1

... OTSD (over temperature shut down) circuit to prevent the IC from over current and over temperature. The AP2125 series have features of high ripple rejec- tion, low dropout voltage, low noise, high output volt- age accuracy and low current consumption which make them ideal for use in various battery-powered apparatus ...

Page 2

... May. 2010 Rev K/KS Package (SOT-23-5/SC-70- OUT IN GND Figure 2. Pin Configuration of AP2125 (Top View) Pin Name V Input voltage IN GND Ground CE Active high enable input pin. Logic high=enable, logic low=shutdown NC No connection V Regulated output voltage OUT 2 Data Sheet ...

Page 3

... Thermal Protection SOT-23-3 May. 2010 Rev ( OUT 1 GND A( Figure 3. Functional Block Diagram of AP2125 3 Data Sheet Shutdown and Logic Control REF MOS Driver Current Limit and Thermal Protection SOT-23-5/SC-70-5 SC-82 BCD Semiconductor Manufacturing Limited AP2125 1 (4) V ...

Page 4

... Green AP2125N-1.8TRG1 AP2125N-2.5TRG1 AP2125N-2.8TRG1 AP2125N-3.0TRG1 AP2125N-3.3TRG1 AP2125N-4.2TRG1 AP2125K-1.8TRG1 AP2125K-2.5TRG1 AP2125K-2.8TRG1 AP2125K-3.0TRG1 AP2125K-3.3TRG1 AP2125K-4.15TRG1 AP2125K-4.2TRG1 AP2125KS-1.8TRG1 AP2125KS-2.5TRG1 AP2125KS-2.8TRG1 AP2125KS-3.0TRG1 AP2125KS-3.3TRG1 AP2125KS-4.2TRG1 AP2125KC-1.8TRG1 AP2125KC-2 ...

Page 5

... J T -65 to 150 STG T 260 LEAD SOT-23-3 SOT-23-5 θ JA SC-70-5 SC-82 ESD 6000 ESD 400 Symbol Min V V +0.5V IN OUT T -40 A BCD Semiconductor Manufacturing Limited 5 Data Sheet AP2125 Unit V +0 200 200 o C/W 300 300 V V Max Unit ...

Page 6

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Electrical Characteristics AP2125-1.8 Electrical Characteristics o (V =2.8V =1µ OUT Parameter Output Voltage Input Voltage Maximum Output Current I Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply ...

Page 7

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Electrical Characteristics (Continued) AP2125-2.5 Electrical Characteristics o (V =3.5V =1µ OUT Parameter Output Voltage Input Voltage Maximum Output Current I Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply ...

Page 8

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Electrical Characteristics (Continued) AP2125-2.8 Electrical Characteristics o (V =3.8V =1µ OUT Parameter Output Voltage Input Voltage Maximum Output Current I Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply ...

Page 9

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Electrical Characteristics (Continued) AP2125-3.0 Electrical Characteristics o (V =4.0V =1µ OUT Parameter Output Voltage Input Voltage Maximum Output Current I Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply ...

Page 10

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Electrical Characteristics (Continued) AP2125-3.3 Electrical Characteristics o (V =4.3V =1µ OUT Parameter Output Voltage Input Voltage Maximum Output Current I Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply ...

Page 11

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Electrical Characteristics (Continued) AP2125-4.15 Electrical Characteristics o (V =5.15V =1µ OUT Parameter Output Voltage Input Voltage Maximum Output Current I Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current ...

Page 12

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Electrical Characteristics (Continued) AP2125-4.2 Electrical Characteristics o (V =5.2V =1µ OUT Parameter Output Voltage Input Voltage Maximum Output Current I Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply ...

Page 13

... BCD Semiconductor Manufacturing Limited 13 Data Sheet AP2125-3 100 150 200 Output Current (mA) Figure 5. Output Voltage vs. Output Current AP2125-3.3 V = 120 150 180 210 Output Current (mA) AP2125 =4. = 250 300 240 270 300 ...

Page 14

... OUT I =100mA OUT I =200mA OUT I =300mA OUT 0 - Case Temperature ( 100 150 200 250 300 Output Current (mA) Figure 11. Current Limit BCD Semiconductor Manufacturing Limited AP2125 AP2125-3.3 V =4. AP2125-3 = =4. =6V IN 350 400 450 500 ...

Page 15

... =- = = 100 150 200 250 300 350 Output Current (mA) Figure 13. Current Limit 1mA 100mA 300mA 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Input Voltage (V) Figure 15. Output Voltage vs. Input Voltage BCD Semiconductor Manufacturing Limited AP2125 400 450 500 AP2125-3 = 4.5 5.0 5.5 6.0 ...

Page 16

... Figure 19. Output Voltage vs. Case Temperature 16 Data Sheet =85 C 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Input Voltage (V) Figure 17. Output Voltage vs. Input Voltage AP2125-3.3 V =4. =10mA OUT I =30mA OUT I =100mA OUT I =300mA OUT - Case Temperature ( C) BCD Semiconductor Manufacturing Limited AP2125 AP2125-3 = Load 4.5 5.0 5.5 6.0 75 ...

Page 17

... Figure 23. Supply Current vs. Case Temperature 17 Data Sheet AP2125-3.3 No Load Input Voltage (V) Figure 21. Supply Current vs. Input Voltage -40 - Case Temperature ( C) BCD Semiconductor Manufacturing Limited AP2125 AP2125-3.3 V =4. Load 60 80 ...

Page 18

... Figure 25. Supply Current vs. Output Current =4. = 120 160 200 240 Output Current (mA) Figure 27. Supply Current vs. Output Current BCD Semiconductor Manufacturing Limited Data Sheet AP2125 AP2125-3.3 V =4.3V IN 300 350 400 AP2125-3 = 280 320 360 400 ...

Page 19

... IN BCD Semiconductor Manufacturing Limited 19 Data Sheet AP2125 AP2125-3.3 Time (100µs/Div) Figure 29. Line Transient =30mA, C =1µF, V OUT OUT AP2125-3.3 Time (40µs/Div) Figure 31. Load Transient (Conditions: I =10 to 100mA, C OUT C =1µF, V =4.3 V) OUT 5V) IN =1µF, ...

Page 20

... BCD Semiconductor Manufacturing Limited 20 Data Sheet AP2125 AP2125-1.8 µ OUT Stable Area 50 100 150 200 250 Output Current (mA) Figure 33. ESR vs. Output Current AP2125-3.3 V =4. =30mA OUT 100 1k 10k Frequency (Hz) Figure 35. PSRR µ F 300 100k ...

Page 21

... May. 2010 Rev AP2125-1.8 Package: SC-70-5 No Heatsink 90 100 110 120 o C) Figure 37. Power Dissipation vs. Ambient Temperature 21 800 AP2125-3.3 700 Package: SC-70-5 No Heatsink 600 500 400 300 200 100 Ambient Temperature ( C) BCD Semiconductor Manufacturing Limited Data Sheet AP2125 100 110 120 ...

Page 22

... = May. 2010 Rev AP2125-1 OUT GND C IN 1µF AP2125-3 OUT GND 1µF Figure 38. Typical Application of AP2125 BCD Semiconductor Manufacturing Limited 22 Data Sheet AP2125 V =1.8V OUT V OUT C OUT 1µF V =3V OUT V OUT C OUT 1µF ...

Page 23

... TYP 1.800(0.071) 2.000(0.079) May. 2010 Rev SOT-23-3 0.200(0.008) 0.300(0.012) 0.500(0.020) 0.000(0.000) 0.150(0.006) 0.900(0.035) 1.300(0.051) BCD Semiconductor Manufacturing Limited 23 Data Sheet AP2125 Unit: mm(inch) 0.100(0.004) 0.200(0.008) ° 0 ° 8 ...

Page 24

... HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR Mechanical Dimensions (Continued) 2.820(0.111) 3.020(0.119) 0.950(0.037) 1.800(0.071) 2.000(0.079) May. 2010 Rev SOT-23-5 0.200(0.008) 0.300(0.012) 0.400(0.016) BCD Semiconductor Manufacturing Limited 24 Data Sheet AP2125 Unit: mm(inch) 0.100(0.004) 0.200(0.008) 0° 8° ...

Page 25

... May. 2010 Rev SC-70-5 0.260(0.010) 0.460(0.018) 0.525(0.021)REF 0.000(0.000) 0.100(0.004) 0.900(0.035) 0.900(0.035) 1.100(0.043) 1.000(0.039) BCD Semiconductor Manufacturing Limited 25 Data Sheet AP2125 Unit: mm(inch) 0° 8° 0.200(0.008) 0.080(0.003) 0.150(0.006) ...

Page 26

... May. 2010 Rev SC-82 ° 4 ° 12 0.100(0.004) 0.260(0.010) 0.350(0.014) 0.500(0.020) 0.700(0.027) 1.000(0.039) ° 4 0.000(0.000) ° 12 0.100(0.004) BCD Semiconductor Manufacturing Limited 26 Data Sheet AP2125 Unit: mm(inch) 0.150(0.006) Typ ° 4 ° 0 ° 12 ° 8 0.260(0.010) 0.460(0.018) ...

Page 27

BCD Semiconductor Manufacturing Limited BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- ...

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