MAX17101 查看數據表（PDF） - Maxim Integrated

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MAX17101

Dual Quick-PWM, Step-Down Controller with Low-Power LDO, RTC Regulator

Maxim Integrated 

Dual Quick-PWM, Step-Down Controller

with Low-Power LDO, RTC Regulator

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, VIN = 12V, VDD = VCC = VSECFB = 5V, VREFIN2 = 1.0V, BYP =

LDOSEL = GND, ONLDO = IN, ON1 = ON2 = VCC, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

OUT2 Output-Voltage Accuracy

(Note 1)

OUT2 Voltage-Adjust Range

REFIN2 Voltage-Adjust Range

REFIN2 Input Bias Current

REFIN2 Dual Mode Threshold

Voltage Levels

SYMBOL

VOUT2

CONDITIONS

3.3V preset output: REFIN2 = VCC (5V),

VIN = 12V, SKIP = VCC

1.05V preset output: REFIN2 = RTC (3.3V),

VIN = 12V, SKIP = VCC

Tracking output: VREFIN2 = 1.1V,

VIN = 12V, SKIP = VCC

IREFIN2

VREFIN2 = 2.2V, TA = +25°C

VREFIN2 = 0V, TA = +25°C

Low (REFIN2 = RTC)

High (REFIN2 = VCC)

Either SMPS, SKIP = VCC, ILOAD = 0 to 5A

Load Regulation Error

Either SMPS, SKIP = REF, ILOAD = 0 to 5A

Either SMPS, SKIP = GND, ILOAD = 0 to 5A

Line Regulation Error

DH1 On-Time

tON1

Either SMPS, VIN = 6V to 24V

VIN = 12V,

VOUT1 = 5.0V

(Note 2)

TON = GND or REF

(400kHz)

TON = VCC (200kHz)

DH2 On-Time

tON2

VIN = 12V,

VOUT2 = 3.3V

(Note 2)

TON = GND (500kHz)

TON = REF or VCC

(300kHz)

Minimum Off-Time

tOFF(MIN) (Note 2)

Soft-Start/Stop Slew Rate

Soft-Start/Stop Slew Rate

tSS

Rising/falling edge on ON1 or ON2 (preset)

tSS

Rising/falling edge on ON2 (REFIN2 ADJ)

Dynamic REFIN2 Slew Rate

tDYN Rising edge on REFIN2

Ultrasonic Operating Frequency fSW(USONIC) SKIP = open (REF)

SECFB Threshold Voltage

VSECFB

SECFB Input Bias Current

ISECFB VSECFB = 2.2V, TA = +25°C

LINEAR REGULATOR (LDO)

LDO Output-Voltage Accuracy

LDOSEL Dual Mode Threshold

Voltage Levels

VLDO

VIN = 24V, LDOSEL = BYP = GND,

0 < ILDO < 100mA

VIN = 24V, LDOSEL = VCC, BYP = GND,

0 < ILDO < 100mA

LDOSEL low

LDOSEL high

MIN

3.255

TYP

3.30

MAX UNITS

3.345

1.038 1.050 1.062

V

1.09

0.8

0

-0.1

-0.5

2.2

VCC -

1.0V

895

833

20

1.94

-0.2

1.10

-0.1

-1.7

-1.5

0.005

1052

2105

555

925

300

1

1

8

27

2.0

1.11

2.0

2

+0.1

+0.1

3.0

VCC -

0.4V

1209

1017

400

2.06

+0.2

V

V

μA

V

%

%/V

ns

ns

ns

ms

mV/μs

mV/μs

kHz

V

μA

4.90 5.0 5.10

V

3.23 3.3 3.37

0.1 0.15 0.2

VCC -

V

0.9V

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