NCP5030MTTXG datasheet(5/14 Pages) ONSEMI

Part #	NCP5030MTTXG

Description	Buck?묪oost Converter to Drive a Single LED from Li?묲on or 3 Alkaline Batteries

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP5030

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ELECTRICAL CHARACTERISTICS

(Limits apply for TA between −40°C to +85°C and Vin = 3.6 V unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

Operational Power Supply

VIN

2.7

−

5.5

V

Maximum Inductor Current (Note 11) (See Figure 8)

IPEAK_MAX

−20%

4.0

+20%

A

Switches P1 and P2 ON Resistance

PMOS RDSON

−

100

−

m

W

Switches N1 and N2 ON Resistance

NMOS RDSON

−

100

−

m

W

Switches P1 and P2 Leakage Current

PMOS L

−

0.5

−

mA

Switches N1 and N2 Leakage Current

NMOS L

−

0.5

−

mA

Internal Oscillator Frequency (Note 8)

FOSC

600

700

800

MHz

Efficiency (Notes 9, 10 and 11)

EFF

−

85

−

%

Output Voltage Range (Note 11)

VOUT

2.2

−

5.5

V

VOUT−VIN Threshold to Change Mode from Boost to Buck−Boost

TBOOST

−

375

−

mV

VIN−VOUT Threshold to Change Mode from Buck−Boost to Buck

TBUCK

−

650

−

mV

Threshold to Change Mode Hysteresis

HMODE

−

100

−

mV

Available Output Power (Note 11)

When Vin ≥ 3.1 V (Vout = 4.7 V, 900 mA)

POUT

4.3

−

W

Feedback Voltage Threshold in Steady State at 25

°C

FBV

190

200

210

mV

Line Regulation, Measured on FB Pin (Note 8)

From DC to 100 Hz and RFB = 1 W

FBVLR

−

5.0

−

mV/V

Feedback Input Current

FBC

−

0.1

mA

Standby Current at IOUT = 0 mA, CTRL = Low, Vbat = 4.2 V

ISTB

−

0.3

3.0

mA

Quiescent Current Switching at IOUT = 0 mA, CTRL = High, Vbat = 4.2 V

(Note 12)

IQS

−

5.0

−

mA

VIN Undervoltage Lockout

Threshold to Enable the Converter

UVLO

2.2

2.4

2.6

V

Undervoltage Lockout Hysteresis

UVLOH

−

100

−

mV

Soft−start Time (Note 11)

SST

−

1000

−

ms

Limit of CTRL pin PWM Dimming Frequency (Note 11)

FDIM

−

0.2

−

kHz

Thermal Shutdown Protection

TSD

−

160

−

°C

Thermal Shutdown Protection Hysteresis

TSDH

−

20

−

°C

Voltage Input Logic Low

VIL

−

0.4

V

Voltage Input Logic High

VIH

1.2

−

V

CTRL Pin Pulldown Resistance

RCTRL

150

220

290

k

W

8. TA between −10°C to +85°C

9. Efficiency is defined by 100 * (Pout/Pin) at 25°C. Vin = 3.3 V, IOUT = 500 mA, Load = 1 LED (Vf = 3.9 V)

10. L = 4.7

mH (TDK RLF7030T−4R7M3R4), Cout = 22 mF X5R

11. Guaranteed by design and characterized.

12. The overall tolerance is dependent on the accuracy of the external resistor.

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