MAX1960(2003) データシートの表示（PDF） - Maxim Integrated

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MAX1960
(Rev.:2003)

2.35V to 5.5V, 0.5% Accurate, 1MHz PWM Step-Down Controllers with Voltage Margining

Maxim Integrated 

2.35V to 5.5V, 0.5% Accurate, 1MHz PWM

Step-Down Controllers with Voltage Margining

ELECTRICAL CHARACTERISTICS (continued)

(VVCC = 3.3V, Circuits of Figures 9–12, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.)

PARAMETER

CONDITIONS

VDD Output Voltage

2.7V ≤ VVCC ≤ 5.5V, ILOAD = 1mA to 50mA

2.35V ≤ VVCC ≤ 2.7V, ILOAD = 1mA to 35mA, C1

= 4.7µF, C6 = 22µF (Note 1)

2.35V ≤ VVCC ≤ 3.6V with tripler, ILOAD = 1 to

50mA (circuit of Figure 12) (Note 1)

Reference Voltage (No Load)

Reference Load Regulation

Positive Current-Limit Threshold

(VPGND - VLX)

-50µA to +50µA

MAX1962

VOUT = 0.8V

VOUT = 2.0V

VOUT = 3.3V

Negative Current-Limit Threshold

(VLX - VPGND)

CS Bias Current

OUT Bias Current

MAX1962, VOUT = 0.8V to 3.3V

MAX1962, VCS = 3.3V

MAX1961/MAX1962, VOUT = 3.3V

Current-Limit Threshold (Positive

Direction, Fixed, VPGND - VLX)

MAX1960/MAX1961, ILIM = VDD

Current-Limit Threshold (Negative

Direction, Fixed, VLX - VPGND)

Current-Limit Threshold (Positive

Direction, Adjustable, VPGND - VLX)

Current-Limit Threshold (Negative

Direction, Adjustable, VLX - VPGND)

Thermal-Shutdown Threshold

DH Gate-Driver On-Resistance

DL Gate-Driver On-Resistance (Pullup)

DL Gate-Driver On-Resistance (Pulldown)

Minimum Adaptive Dead Time

MAX1960/MAX1961, ILIM = VDD

MAX1960/MAX1961, RILIM = 160kΩ

RILIM = 400kΩ

MAX1960/MAX1961, RILIM = 160kΩ

RILIM = 400kΩ

15°C hysteresis

VBST - VLX = 5V, pulling up or down

DL high state

DL low state

DH falling to DL rising

DH rising to DL falling

FSET/SYNC Pulse Width

FSET/SYNC Rise/Fall Time

CTL_, FSET/SYNC, EN Input High Voltage

CTL_, FSET/SYNC, EN Input Low Voltage

CTL_, FSET/SYNC, EN Input Current

Minimum high time (Note 1)

Minimum low time (Note 1)

(Note 1)

VVCC = 2.35V to 5.5V

VVCC = 2.35V to 5.5V

CLKOUT VOL

Sinking 1mA

CLKOUT VOH

Sourcing 1mA

CLKOUT Rise/Fall Time

CLOAD = 100pF (Note 1)

MIN

4.75

4.45

4.75

1.269

44

45

38

38

58

50

100

250

90

245

200

200

2.0

-1

VVCC -

0.2V

TYP

1.280

3

53

50

48

50

20

30

74

67

114

279

107

271

+160

1.8

1.8

0.5

35

26

0.01

VVCC -

0.01V

MAX

5.25

5.25

5.25

1.291

62

55

58

68

50

50

90

85

135

306

125

296

3.5

3.5

1.6

100

0.8

+1

0.1

40

UNITS

V

V

V

V

mV

mV

mV

µA

µA

mV

mV

mV

mV

°C

Ω

Ω

Ω

ns

ns

ns

V

V

µA

V

V

ns

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