LMH2190 Datasheet, PDF (7/32 Pages) National Semiconductor (TI) – Quad Channel 27 MHz Clock Tree Driver with I2C Interface

LMH2190
www.ti.com
SNAS473H – JUNE 2009 – REVISED MAY 2013
3.5 V DC AND AC ELECTRICAL CHARACTERISTICS ⁽¹⁾⁽²⁾ (continued)
Unless otherwise specified, all limits are specified at T_A = 25°C, V_BAT = 3.5V, f_{SCLK_IN} = 26 MHz, C_OUT = 2.2 µF, V_{DD_IO} = 1.8V
(See Figure 6 ) ⁽³⁾, I_OUT = 1 mA, Registers are in default setting. Boldface limits apply at the temperature extremes.
Symbol
Parameter
Condition
Min ⁽⁴⁾
Typ ⁽⁵⁾
Max ⁽⁴⁾
Units
LDO
V_OUT
I_LOAD
V_DO
Output Voltage
Load Current ⁽¹²⁾
Dropout Voltage ⁽¹³⁾
I_OUT = 1 mA
V_OUT > 1.74V
V_OUT = 1.7V, I_OUT = 10 mA
1.78
1.805
1.82
V
0
10
mA
100
150
mV
I_SC
Short Circuit Current Limit
300
mA
PSRR
Power Supply Rejection Ratio
V_BAT ripple = 200 mV_PP, f = 100 Hz
93
I_OUT = 10 mA
f = 217.5 Hz
90
f = 1 kHz
78
f = 10 kHz
62
dB
f = 50 kHz
54
f = 100 kHz
50
f = 1 MHz
42
f = 3.25 MHz
35
E_N
Output Noise Voltage
T_SHTDWN Thermal Shutdown
ΔV_OUT
Line Transient ⁽¹⁴⁾
Load Transient ⁽¹⁴⁾
Overshoot on Startup ⁽¹⁴⁾
BW = 10Hz to 100 kHz, V_BAT = 4.2V,
C_OUT = 2.2 µF, All Outputs are Off
Temperature
Hysteresis
10
µV_RMS
160
°C
20
V_BAT = (V_{OUT (NOM)} + 1.0V) to (V_OUT
(NOM) ^{+ 1.6V) in 30 µs}
-1
V_BAT = (V_{OUT (NOM)} + 1.6V) to (V_OUT
(NOM) ^{+ 1.0V) in 30 µs}
I_OUT = 0 mA to 10 mA in 10 µs
-70
I_OUT = 10 mA to 0 mA in 10 µs
mV
1
mV
30
100
mV
R_OUT
T_ON
DC Output Resistance
Turn on Time ⁽¹⁴⁾
to 95% of V_{OUT (NOM)}
5
Ω
185
270
µs
(12) The device maintains stable, regulated output voltage without a load.
(13) Dropout voltage is the voltage difference between the supply voltage and the output voltage at which the output voltage drops to 100
mV below its nominal value.
(14) This parameter is specified by design and/or characterization and is not tested in production.
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