Diodes AP2160 User Manual

Ultra Low Output Voltage Linear N-FET Controller AP2160

Preliminary Datasheet

General Description

The AP2160 is an ultra low output voltage N-FET
linear regulator controller. The output voltage can be
adjusted down to 0.5V. A Power-On-Reset (POR)
circuit monitors supply voltage to prevent wrong
operations. A POK pin indicates the output status. It
can control other converters for power sequence. The
AP2160 can be enabled by other power systems.

The AP2160 integrates a 0.5V reference voltage with
1% accuracy to provide tight regulation to the output
voltage. The regulator also features enable control,
open drain power good signal, under-voltage
protection and soft start.

The AP2160 is available in 6-pin SOT-23-6 standard
package.

Features

0.5V Reference Voltage with 1% Accuracy

•

• Adjustable Output Voltage down to 0.5V

• Low ESR Output Capacitor (MLCC and
POSCAP) Applicable

• Enable Control for the Output Voltage and Low

Shutdown Current

• Under-voltage Short Circuit Protection

• Fast Transient Response

• Power Good Monitoring and Signaling for the

Output

• Drive N-Channel MOSFETs

Applications

• Notebook PC Computers

• Desktop Computers

• Battery Powered Devices

• Portable Instruments

Figure 1. Package Type of AP2160

SOT-23-6

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Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Pin Configuration

K Package

(SOT-23-6)

VCC DRV

GND FB

POK EN

Figure 2. Pin Configuration of AP2160 (Top View)

Pin 1 Mark

1

2

34

6

5

Pin Description

Pin Number Pin Name Function

1 VCC Input voltage
2 GND Common ground pin
3 POK Power OK output pin
4 EN H: Normal operation; L: Shutdown
5 FB Output voltage feedback pin
6 DRV Gate drive to N-FET

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Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Functional Block Diagram

1

POK

GND

Power On ResetVCC

3

Control Logic Unit

2

Figure 3. Functional Block Diagram of AP2160

Thermal

Protection

Band Gap

Enable Control

6

DRV

5

FB

4

EN

Ordering Information

AP2160 -

Circuit Type G1: Green

Package TR: Tape & Reel
K: SOT-23-6

Package

SOT-23-6

Temperature

Range

-40 to 85°C

Part Number Marking ID

AP2160KTR-G1 GJC Tape & Reel

BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and green.

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Packing

Type

Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

VCC to GND VCC -0.3 to 7 V
DRV to GND V

POK to GND V
FB to GND VFB -0.3 to VCC+0.3 V
EN to GND VEN -0.3 to VCC+0.3 V

Operating Junction Temperature TJ 150 ºC
Power Dissipation (25ºC) PD 0.4 W
Operating T em perature Range T
Storage Temperature Range T

Lead Temperature (Soldering, 10
Seconds)

ESD (Machine Model)
ESD (Human Body Model)

Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute
Maximum Ratings” for extended periods may affect device reliability.

-0.3 to VCC+0.3 V

DRV

-0.3 to VCC+0.3 V

POK

-40 to 85 ºC

OPR

-65 to 150 ºC

STG

T

LEAD

260 ºC
200 V

2000 V

Recommended Operating Conditions

Parameter Symbol Min Max Unit

Supply Voltage (between VCC and GND) VCC 4.5 5.5 V
System Input Voltage (between VIN and GND) VIN 0.5 5.5 V
Ambient Operating Temperature Range TA -40 85

°C

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Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Electrical Characteristics

V

=1.5V, V

IN

Parameter Symbol Conditions Min Typ Max Units

Supply Voltage Range VCC 4.5 5.5 V
Input Voltage UVLO

Threshold
Input Voltage UVLO
Hysteresis

Supply Current ICC VEN=VCC=5V 0.42 0.6 mA

=1.05V, VEN=VCC, TA=25°C, CIN=4.7µF, C

OUT

VFB=0.48V, VCC rising 3.70 V

V

UVLO

VFB=0.48V, VCC falling 0.25 V

V

HYST

=22µF, unless otherwise specified.

OUT

Shutdown Current ISD VEN=0V -1 1

µΑ

Feedback Voltage VFB VEN=VCC=5V 0.495 0.5 0.505 V
Feedback Pin Input

Current
EN Pin Logic High

Threshold Voltage

EN Pin Input Current IEN I
Output Voltage UVLO

Threshold

DRV Output Current

VFB=0.5V -100 100 nA

I

FB

V

VCC=5V, VEN rising 1.3

EN-H

V

V

VCC=5V, VEN falling 0.5

EN-L

V

TH(UV)

I

DRV(SS)

I

DRV(SRC)

=0mA, VIN=5V -1 1

OUT

V

Falling 0.2 0.25 0.3 V

FB

Sourcing, VFB=0V 20

Sourcing, VFB=0.48V 2.2

µΑ

µΑ

mA

I

DRV(SINK)

DRV Pin Output Voltage V

POK Threshold Voltage
for Power not OK

V

Sinking, VFB=0.52V 9.0

VFB=0.48V,

DRV

PNOK

V

FB

V

EN=VCC

VFB falling 84% 88% 91% VFB

V

EN=VCC

=5V

=0.52V,

=5V

4.9 5.0

0.8 1.15 1.5

V

POK Low Voltage POK sinks 1mA 200 250 mV
POK Delay Time t

Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis

0.8 2 10 ms

DELAY

150

T

SD

40

°C

°C

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Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Typical Performance Characteristics

0.504

0.502

0.500

0.498

Feedback Voltage (V)

0.496

-40-200 20406080100120

Ambient Temperature (oC)

Figure 4. Feedback Voltage vs. Ambient Temperature Figure 5. Supply Current vs. Ambient T emperature

500

480

460

440

420

Supply Current (µA)

400

380

-40 -20 0 20 40 60 80 100 120

Ambient Temperature (oC)

1.0600

1.0595

1.0590

1.0585

Output Voltage (V)

1.0580

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Load Current (A)

70

60

50

40

30

20

Ripple Rejection (dB)

10

0

Output Voltage: 1.05V
Load Current: 300mA

100 1000 10000 100000

Figure 6. Output Voltage vs. Load Current Figure 7. Ripple Rejection vs. Frequency

Frequence (Hz)

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Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Function Description

1. Power-On-Reset

A Power-On-Reset (POR) circuit monitors input
voltages at VCC pin to prevent wrong logic controls.
The POR function initiates a soft-start process after
the supply voltages exceed input voltage UVLO
threshold during powering on. The POR function also
pulls low the POK pin regardless of the output
voltage when the VCC voltage falls below the input
voltage UVLO threshold minus input voltage UVLO
hysteresis.

2. Output Voltage

An error amplifier working with a temperature
compensated 0.5V reference and an output NMOS
regulates output to the preset voltage. The error
amplifier designed with high bandwidth and DC gain

Regulation

provides very fast transient response and excellent
load regulation.

3. Under-Voltage Protection

AP2160 monitors the voltage on FB pin after
soft-start process finishing. Therefore the UVP is
disabled during soft-start. When the voltage on FB
pin falls below the output voltage UVLO Threshold,
the UVP circuit shuts down the output immediately.

(UVP)

4. Thermal Shutdown

A thermal shutdown circuit limits the junction
temperature of AP2160. When the junction
temperature exceeds 150°C, a thermal sensor turns
off the output NMOS, allowing the device to cool
down. The regulator regulates the output again
through initiation of a new soft-start cycle after the
junction temperature drops by 40°C.

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Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Typical Application

Figure 8. Typical Application Circuit of AP2160

Jan. 2012 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller AP2160

Mechanical Dimensions

SOT-23-6 Unit: mm(inch)

0°
8°

0.200(0.008)

2.650(0.104)

2.950(0.116)

2.820(0.111)

3.020(0.119)

0.300(0.012)

0.400(0.016)

6

Pin 1 Mark

123

5

4

0.300(0.012)

0.600(0.024)

1.500(0.059)

1.700(0.067)

0.700(0.028)REF

0.950(0.037)TYP

1.800(0.071)

2.000(0.079)

0.000(0.000)

0.150(0.006)

0.900(0.035)

1.300(0.051)

1.450(0.057)
MAX

0.100(0.004)

0.200(0.008)

Jan. 2012 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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BCD Semiconductor Manufacturing Limited

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particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or

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