ADM1051 datasheet(2/10 Pages) AD

2 / 10 page

REV. 0

–2–

ADM1051/ADM1051A–SPECIFICATIONS

(VCC = 12 V

6%, VIN = 3.3 V, TA = 0 C to 70 C, both

channels, unless otherwise noted. See Test Circuit.)

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

OUTPUT VOLTAGE

Channel 1

1.515

SHDN1 Floating

Channel 2

1.818

OUTPUT VOLTAGE ACCURACY

–2.5

+2.5

VIN = 3.0 V to 3.6 V, IOUT = 10 mA to 1 A

Load Regulation

–5

VIN = 3.3 V, IOUT = 10 mA to 1 A

Line Regulation

–5

VIN = 3.0 V to 3.6 V, IOUT = 1 A

5 VSB Supply Voltage Required for

4.6

Test Circuit as Figure 7.

2 I

LOAD = 500 mA

Channel 2 Regulation

CONTROL AMPLIFIER

Control Amplifier Open-Loop Gain

100

Control Amplifier Slew Rate

µs

Closed-Loop Settling Time

µsIO = 10 mA to 2 A

Turn-On Time

µs

To 90% of Force High Output Level (CL = 470 pF)

Sense Input Impedance

Ω

Force Output Voltage Swing, VF (High)

RL = 10 k

Ω to GND

Force Output Voltage Swing, VF (Low)

RL = 10 k

Ω to VCC

HICCUP MODE

Hiccup Mode Hold-Off Time

See Figure 4

Hiccup Mode Threshold

0.8

× V

OUT

Hiccup Comparator Glitch Immunity

100

µs

Hiccup Mode On-Time

0.5

1.0

1.5

Hiccup Mode Off-Time

Power-On Reset Threshold

SHUTDOWN,

SHDN1

Mode 1 (Shutdown)

0.8

Mode 2 (1.5 V Out)

3.9

Mode 3 (3.3 V Out)

4.3

5.3

Mode 4 (1.5 V Out)

6.2

SHUTDOWN,

SHDN2

Shutdown Input Low Voltage, VIL

0.8

Shutdown Input High Voltage, VIH

2.0

Supply Current, Normal Operation

2.4

4.0

Shutdown Inputs Floating

Supply Current, Shutdown Mode

600

1000

µA

Both Channels Shut Down

NOTES

1Guaranteed by design.

25 VSB Supply is connected to, and measured at anode of Schottky Diode.

Specifications subject to change without notice.

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