NCP1530DM25R2 datasheet(4/16 Pages) ONSEMI

Part #	NCP1530DM25R2

Description	600 mA PWM/PFM Step-Down Converter with External Synchronization Pin

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Manufacturer	ONSEMI [ON Semiconductor]

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ELECTRICAL CHARACTERISTICS (VIN = VR + 1.0 V, test circuit, refer to Figure 1, CSS = NC and CVREF = 1.0 mF, TA = 25°C for

typical value, 0

°C ≤ TA ≤ 85°C for min/max values unless otherwise noted.) *VR is the factory−programmed output voltage setting.

Characteristic

Symbol

Min

Typ

Max

Unit

Input Voltage

VIN

1.1 VR

−

5.0

V

Output Voltage (Iload = 150 mA, VR + 1.0 V < VIN < 5.0 V) (Note 4)

NCP1530DM25R2

NCP1530DM27R2

NCP1530DM30R2

NCP1530DM33R2

VOUT

2.425

2.619

2.910

3.201

2.5

2.7

3.0

3.3

2.575

2.781

3.090

3.399

V

Maximum Output Current (VIN = 5.0 V, VOUT = 3.0 V) (Note 5)

IOUT(max)

600

−

mA

Supply Current (VIN = VR + 1.0 V, No Load, EN and SYN Pins NC)

IIN

−

45

95

mA

Shutdown Supply Current (VIN = 5.0 V, No Load, VEN = 0 V)

ISHDN

−

0.5

1.0

mA

LX Pin Leakage Current (No Load, VEN = 0 V)

ILX

−

1.0

mA

Internal P−FET ON Resistance at LX Pin

(VIN = VR + 1.0 V, ILoad = 150 mA)

RDS(ON)

−

0.3

0.5

W

Oscillator Frequency

(VIN = VEN = VR + 1.0 V, ILoad = 100 mA, SYN Pin NC)

fOSC

480

600

720

kHz

Maximum PWM Duty Cycle (Note 5)

DMAX−PWM

−

100

%

PFM to PWM Switch−Over Current Threshold

(VIN = 4.5 V, SYN Pin NC, L = 5.6 mH, COUT = 22 mF) (Note 5)

NCP1530DM25R2

NCP1530DM27R2

NCP1530DM30R2

NCP1530DM33R2

IPFM−PWM

−

83

90

100

102

−

mA

PWM to PFM Switch−Over Current Threshold

(VIN = 4.5 V, SYN Pin NC, L = 5.6 mH, COUT = 22 mF) (Note 5)

NCP1530DM25R2

NCP1530DM27R2

NCP1530DM30R2

NCP1530DM33R2

IPWM−PFM

−

27

38

39

48

−

mA

Input Undervoltage Lockout Threshold

VUVLO

−

2.0

2.45

V

Reference Voltage (VIN = VR + 1.0 V, CVREF = 1.0 mF)

VREF

1.184

1.20

1.216

V

Reference Voltage Temperature Coefficient

(VIN = VR + 1.0 V, CVREF = 1.0 mF) (Note 5)

TCVREF

−

0.03

−

mV/

°C

Reference Voltage Load Current

(VIN = VR + 1.0 V, CVREF = 1.0 mF) (Note 6)

IVREF

5.0

−

mA

Enable Logic High Threshold Voltage (VIN = VR + 1.0 V, ILoad = 0 mA)

VEN−H

−

1.5

1.85

V

Enable Logic Low Threshold Voltage (VIN = VR + 1.0 V, ILoad = 0 mA)

VEN−L

0.5

1.2

−

V

PWM Minimum On−Time (Note 5)

tPWM−ON

−

100

−

ns

PWM OV Protection Level

%VOV

−

6.0

12

%

PWM Cycle−by−Cycle Current Limit (Note 5)

ILIM

−

1.5

−

A

Built−in Soft−Start Time (VOUT = 3.0 V, SS Pin NC) (Note 5)

tSS

−

500

−

ms

Thermal Shutdown Threshold (VIN = 3.5 V, ILoad = 0 mA) (Note 5)

THSHD

−

145

−

°C

Thermal Shutdown Hysteresis (VIN = 3.5 V, ILoad = 0 mA) (Note 5)

THHSYS

−

15

−

°C

4. Tested at VIN = VR + 1.0 V in production only. Full VIN range guaranteed by design.

5. Parameter guaranteed by design only, not tested in production.

6. Loading capability decreases with VOUT decreases.

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NCP1530DM25R2 Datasheet(PDF) 4 Page - ON Semiconductor

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